Join the ProtonMail team

Build the secure Internet of the future with us.

View current openings

At ProtonMail, we are committed to online security and privacy. We have been working diligently on this cause since 2013, and we launched ProtonMail in 2014 with the goal of defending our rights to security and privacy online.

Today, ProtonMail is used worldwide by millions of business professionals, journalists, activists, and individuals who value security in their communications. We strive to make encryption and privacy an integral part of the future of digital communication. Along the way, we are developing and building cutting edge technology to support our rapidly growing community.

 

We're a global team rebuilding the web to put privacy and security first.

Proton Technologies AG is an international company headquartered in Geneva, Switzerland, with a presence in San Francisco, Macedonia, France, Czech Republic, and Lithuania. You will find among us former CERN and MIT scientists, chess champions, and many experts in their fields.

 

meet the team

We believe diversity is key to building great products and great companies.

People from all around the world rely on ProtonMail, and our team reflects that. Women and other underrepresented groups are highly encouraged to apply. We are committed to increasing diversity whenever possible.

Working at ProtonMail

For those up to the challenge, ProtonMail provides an intense and exciting atmosphere as part of one of Europe's highest profile and fastest growing startups. We're looking for extremely intelligent and highly motivated problem solvers to join our team of experts. We provide highly competitive compensation packages, commensurate with experience and performance. As a fast growing company that doubles headcount annually, there is also the possibility for rapid advancement for capable candidates. We operate on a strict meritocracy, with a flat management structure, and promoting internally whenever possible.

ProtonMail has millions of users, and we are growing rapidly. As part of our team, you will have the ability to make a direct and significant impact. You will have the chance to work on challenging large scale problems related to scaling, security, reliability, and user experience. Our work is complex, and our team moves fast and works at a higher level than the typical team. You should be smart, fast, versatile, and creative. Working with us will likely be your most challenging job, but perhaps also the most exciting and rewarding. In the process, you will touch the lives of millions of people around the world.

We are strong believers in quality over quantity and the hiring process at ProtonMail is highly selective. A lot of what we do is challenging and requires exceptional talent. For technical positions, ProtonMail has historically hired less than 1% of applicants that apply. If you make it however, you will find a close and tight knit atmosphere where nobody is a stranger. We are an equal opportunity employer, and don't account for race, sex, nationality, current location, or educational background when hiring. We do hire remote candidates for certain positions, but local candidates are preferred. For candidates relocating to Geneva, San Francisco, Macedonia or Prague, we will provide all necessary visas and work permits. The only criteria we have is that we hire the best of the best.

 


Additional Benefits:

Health and social benefits for you and your family
Casual and friendly working environment
Flexible working hours
Dedicated budget for computers and equipment
Generous perks (fitness subsidy, parking, transit passes, snacks, etc)

 

 


 

Internships

Location: Geneva, San Francisco
Type: Part Time.
Experience: Entry

Description:

Interns at ProtonMail work on building new features and learn about the inner workings of running the world's largest encrypted email service. Working on challenging problems with smart, motivated people is at the heart of what we do.

The following skills are preferred:
  • Background in computer science or programming experience - we use Javascript (ES6, AngularJS, React, etc), PHP, Python, Objective-C, Swift, and Go
  • Strong English communication skills
  • Academic focus in Math, Physics, Engineering or Computer Science
  • Ability to think critically on extremely complex software projects and keep up in a fast-paced environment
  • Well versed in security and with a good understanding of best practices
What you will be doing:

You will be working alongside our senior engineers on new ProtonMail features and products. Previous interns helped develop our Android application, helped upgrade our authentication flow, and optimized the performance of our AngularJS application.

Why intern at ProtonMail:
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Work in a high-growth startup, while solving interesting problems. There's never a dull moment
  • Possibility of a full-time offer
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world

How to apply?

Send your resume to with a description of what you would be most interested in working on at ProtonMail, and why you are interested in working at ProtonMail.

Please include your nationality, current location, and which country or city you are most interested in working in. The options are: Geneva, San Francisco

 

Open Positions (Technical)

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Expert.

Who We are:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

What You will be doing:

We decided from the beginning to avoid relying on third parties like AWS and instead, operate our own hardware from datacenters in Switzerland. Despite the extra work, managing our own servers and network gives us more control of the critical core that powers all of our services.

You will join our team to improve and operate our technical infrastructure. This requires working on shifts as well as during emergencies. You should have experience designing and running web-scale, distributed, and highly available systems.

Responsibilities:
  • Work with networking and Internet protocols (TCP/IP, DNS, TLS, SMTP, HTTP) on Linux servers
  • Deploy, monitor and troubleshoot systems and services
  • Understand and write software to improve automation and site reliability
  • Participate in rotating on-call duties in a global, 24x7x365, team
Preferred Qualifications:
  • Operated email services (Postfix, anti-spam, anti-virus)
  • Operated massive data storage (Sharded MySQL, Ceph)
  • Used automation tools and containers
  • Software engineering experience
  • Good understanding of security best practices
Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Vilnius, Prague, Skopje.
Type: Full-time.
Experience: Expert.

Who We are:

Proton Technologies has around 80 employees located in Geneva, San Francisco, Vilnius, Skopje, Prague, Zurich and also remote around the world.

As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply.

What You will be doing:
  • Develop an automation test strategy for web and mobile products
  • Design and write test automation scripts and test automation framework
  • Convert manual test cases into automated to support manual testing efforts
  • Work together with engineering and product teams to ensure high quality software in every release
  • Resolve any broken automation scripts that fail during execution
  • Ensure best testing practises are used in product development
  • Will be automating tests for different systems and devices (Android, iOS, MacOS, Windows, web applications and etc.)
Preferred Qualifications:
  • Be independent and be capable to teach yourself.
  • Eagerness to share knowledge and try new things.
  • Be quality results oriented.
  • Experience in API and UI test automation
  • Experience in mobile testing is an advantage
  • Strong knowledge of quality assurance methodologies, tools and processes
  • Solid understanding of software development life-cycle process
  • Experience with Selenium Webdriver or alternatives (e.g. Cypress.io)
  • Knowledge of API testing tools (e.g. Postman or Fiddler)
  • Experience in Java or C#
Bonus points for experience with:
  • Espresso Testing Framework
  • Mocking tools (Mockito; Mockware)
  • API framework (e.g. Rest API)
  • Gherkin live documentation tools (e.g. Specflow)
  • Security tools: OWASP ZAP
Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Geneva and Vilnius preferred. Also considering Zurich, Prague, Skopje
Type: Full-time.
Experience: Expert.

Who We are:

Proton Technologies has around 80 employees located in Geneva, San Francisco, Vilnius, Skopje, Prague, Zurich and also remote around the world.

As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply.

What You will be doing:
  • Design, build and execute split testing, multivariate testing and other testing approaches for websites and landing pages
  • Own and manage conversion rate optimization strategy for Proton Technologies products
  • Use analytics platforms, heatmaps and other methods to monitor and analyze conversion funnel
  • Build user journeys and create wireframes to continuously improve user experience and increase conversion rates.
Preferred Qualifications:
  • Previous experience as a CRO specialist
  • Experience with testing tools (VWO, Optimizely, Ion Interactive etc)
  • Experience identifying and solving usability & UX issues
  • Experience designing, developing and managing A/B and multivariate tests
  • Experience with digital analytics platforms and data analysis
Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Expert.

Company Description:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

Job Description:

The crypto community has supported ProtonMail since 2014 when we raised over half a million dollars and many Bitcoins through crowdfunding. Over the years, we have integrated Bitcoin as a form of payment (https://protonmail.com/blog/bitcoin-secure-email/) and became the go-to email for cryptocurrency users demanding the best security. Looking forward, we have some exciting blockchain-related ventures underway. You will join our team to lead these projects, which will ultimately make the blockchain easy to use and empower millions of people around the world.

Preferred Qualifications:
  • Operated full blockchain nodes and wallets
  • Participated in successful ICO
  • Expert in developing secure Ethereum smart contracts
  • Deep understanding of blockchain on a code and math level
  • Software engineering experience
Why work at ProtonMail:
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Expert.

Who We are:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

What You will be doing:

While the open nature of email is great for interoperability, accessibility and freedom from centralized control, it also creates challenging spam and abuse problems. For instance, a significant percentage of incoming emails to ProtonMail users are spam, some of which are dangerous phishing attempts. Also, as a free email service open to all, ProtonMail inevitably attracts signups from spammers who abuse our excellent email delivery and reputation.

You will join our team to build and operate sophisticated anti-spam and anti-abuse systems. Your work will directly improve the user experience and digital security of millions of people around the world. You should have extensive experience designing and running real-time analysis and prediction systems.

Responsibilities:
  • Improve our anti-spam filtering
  • Improve our abuse detection and prevention systems
  • Deploy, monitor, and troubleshoot these critical services
  • Participate in rotating on-call duties in a global, 24x7x365, team
Preferred Qualifications:
  • Operated big data storage and web services
  • Expert in data analysis and machine learning (anomaly detection, time series, clustering, NLP)
  • Software engineering experience (Python, PHP)
Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Zurich, Switzerland
Type: Full-time.
Experience: Experienced

Who We are:

Proton Technologies has around 40 employees located in Geneva, San Francisco, Skopje, Prague, Zurich and also remote around the world. You will be working on products that will be used by millions of people worldwide. You will be joining a dynamic, vibrant, and highly talented team.

As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply. We will provide all necessary residency and work permits.

What You will be doing:

Jump into the deep end of new product development! Implement low level software and explore early stage development together with team members from different fields to realize new ways for our users to maintain digital security and privacy.

What You need for this Position:

Demonstrated experience in the below (either through 3+ years of industry experience and/or demonstrable project work):

  • Systems-level software development (e.g., OS development, barebone embedded applications, etc.)
  • Embedded security background (e.g., knowing the common problems and mitigations of various classes of security bugs)
  • Strong foundation in the C language, and the ability to learn new programming languages quickly
  • M.Sc. in Computer Science (or equivalent)

Bonus points for:

  • Well versed in security and with a good understanding of security best practices from a programming point of view
  • Experience in performing side channel analysis and fault injection attacks
  • Knowledge of cryptography (e.g., experience developing custom crypto libraries)
  • Knowledge of the Ada, RUST, or similar programming languages
Why work at ProtonMail?
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Have the opportunity to drive and be responsible for a product from start to finish
  • Work in an ultra high growth environment solving interesting problems, there is never a boring moment
  • Work with other exceptional engineers on challenging problems
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable early employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: San Francisco
Type: Full-time.
Experience: Prior software development experience is necessary

Description:

We are hiring an experienced front-end developer with a strong background in developing sophisticated web applications. Candidates can work in our office in San Francisco, or remotely.

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age.

Candidates must be fluent in English.

Experience with the following are required:
  • Setup CI (Jenkins or other)
  • Automate testing (Jasmine/Mocha/Protractor), review, deployment
  • Tooling (grunt/gulp/webpack/npm scripts)
  • React (React Native, Electron etc.)
  • AngularJS 1 and beyond
  • ES6 (2015)
  • SPA, PWA, Web UI Components, Web Workers
  • Server Sent Event, Web Socket
  • Security everywhere
  • Containers
  • Bug tracking
  • Version control system (git)
Bonus points for:
  • Extensive Linux experience (e.g. you know basic system administration)
  • Well versed in security and with a good understanding of security best practices from an application development standpoint (OWASP)
  • Knowledge or experience in back-end software development and RESTful APIs
  • Ability to keep up in an extremely fast-paced environment
  • Fluent in French
  • Bachelor's's degree in a relevant field of study and/or scientific background from a highly competitive university
What you will be doing:
  • Building scalable, reliable, and secure web applications.
  • Building complex front-end logic (encryption/decryption, caching, synchronization, performance optimization)
  • Interacting with our backend team to come up with the best API design
  • Writing software to improve webapp reliability (unit tests, automated testing)
  • Working with product and design teams on producing the most intuitive and easy-to-use interfaces
  • There will be the opportunity to take on a leadership role within our growing team
Why work at ProtonMail:
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Work in an ultra high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable early employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Geneva, Zurich, San Francisco, Prague, Macedonia, Lithuania, Ukraine
Type: Full-time.
Experience: Prior software development experience is necessary

Description:

Developers at ProtonMail frequently transition between front-end, back-end, iOS, Android, and other projects. Our strength comes from our speed and agility, and our ability to refocus the engineering team based on current priorities. You will have the opportunity to work on challenging problems anywhere in our stack.

The following are required:
  • We use Javascript (ES6, AngularJS, React, etc), PHP, Python, Objective-C, Swift, Java, Go, .NET, and several other languages. You'll have to be able to become proficient in at least 2 of these languages within a few weeks, and learn any other language equally rapidly.
  • Strong English communication skills.
  • Extensive experience working on extremely complex software projects
  • Strong background in computer science (algorithms, data structure, software design, reliability, maintainability, etc)
  • Ability to keep up in an extremely fast-paced environment
Bonus points for:
  • Well versed in security and with a good understanding of security best practices from a programming point of view
  • Fluent in UNIX/Linux
  • Degree from a top university
  • Math/Physics/CS competition winner (ACM ICPC, International Math/Physics Olympiad, Putnam, etc)
What you will be doing:

You can focus on Front-end, Back-end, or Mobile or you can work on everything.

Why work at ProtonMail:
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Work in an ultra high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable early employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to with a description of what you would be most interested in working on at ProtonMail, and why you are interested in working at ProtonMail.

Please include your nationality, current location, and which country or city you are most interested in working in. The options are: Geneva, Zurich, San Francisco, Prague, Macedonia, Lithuania, Ukraine

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Prior software development experience is necessary

Company Description:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

At ProtonMail, we allocate a lot of resources into the research and development of better cryptographic tools and processes. We are currently the maintainers of OpenPGP.js, the world's most widely used JavaScript cryptography library, and we additionally maintain a cryptography library written in Golang that is used by our mobile and desktop applications. In addition to maintaining and expanding these libraries, ongoing cryptography-related projects include building a key verification system.

The following are required:
  • B.S. and/or M.S. in Computer Science or Mathematics (or equivalent)
  • Strong background in computer science (algorithms, data structure, software design, reliability, maintainability, etc)
  • Strong English communication skills
  • Knowledge of JavaScript and/or Golang (the two languages in which our cryptography libraries are written)
  • Knowledge of cryptography with experience developing custom crypto libraries
  • Well versed in security and with a good understanding of security best practices from an application development standpoint
Why work at ProtonMail:
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to with a description of what you would be most interested in working on at ProtonMail, and why you are interested in working at ProtonMail.

Please include your nationality, current location, and which country or city you are most interested in working in. The options are: Geneva, Zurich, San Francisco

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Expert

Company Description:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

Job Description:

Join our team to lead the development of state-of-the-art web applications. Due to the nature of client-side encryption, you will be challenged with complicated logic and data processing on both the frontend and the backend. Your work will directly improve the user experience and digital security of millions of people from around the world.

Experience with the following are required:
  • Frontend: Javascript, AngularJS, React
  • Backend: Node.js, PHP, Go, MySQL, Redis
  • Passionate about UX, security, crypto, blockchain
Why work at ProtonMail:
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: Geneva, Zurich, San Francisco
Type: Full-time.
Experience: Expert

Description:

We operate our own cloud infrastructure distributed across multi-tenant datacenters throughout Switzerland, with over 1 Petabyte of storage. This infrastructure is connected through a redundant network with a 24/7 NOC in Switzerland.

You will be responsible ensuring our infrastructure remains reliable and can scale quickly enough to match our growth. You will perform System and Network operation. This require work on-shift as well as outside working hour. You will be working both internally with the ProtonMail engineering team, and also with an external ISP that we have partnered with. As you will be working in an international environment, English fluency is mandatory.

Experience with the following are required: Networking:
  • Routing expertise: BGP (e.g. IPv4/IPv6, ECMP, Multi-homing, path tuning)
  • Strong in LAN, WAN, DataCenter networks, MPLS
  • Experience in VxLAN, EVPN forwarding, DCI
  • 5+ years of proven track record of success, preferably in an ISP environment or large-scale data center environment
  • NOC experience
  • Proven experience in Arista, Cisco or Juniper routers/switches
  • Netflow or SFlow analysis
  • Network design and operation (Data Center and Internet layer)
  • Network security and system hardening (e.g. Firewall, ACL, segmentation)
  • Fine level knowledge of UDP/TCP protocols
  • Extensive experience with network troubleshooting (L1 to L4)
  • Experience in network scripting/programming in Perl or Python
Sysadmin:
  • Solid understanding of RedHat derivatives (CentOS, RHEL, Scientific Linux, etc)
  • Linux networking (e.g. VLAN, bridges, bonding, STP)
  • Nagios, Ansible, ELK
  • DHCP, DNS, RADIUS, TACACS+, SYSLOG, NTP
  • Bird, ExaBGP, HAProxy, LVS
  • Expert at debugging/customizing Linux system (building custom packages, kernel level tuning, recovery/rollbacks/upgrades, etc)
  • Fluent in Python, SQL and/or shell scripting
Bonus points for:
  • Experience in Data Center Network
  • Extensive software engineering experience (could also work as a software engineer)
  • Experience in Design pattern, Object Oriented programming, SQL Databases
  • Well versed in security and with a good understanding of security best practices from both a network and systems point of view
  • OpenVPN/IPsec/MACSec
  • Ability to keep up in an extremely fast-paced environment
  • Fluent in French or German will be appreciated
  • Masters degree in a relevant field of study and/or scientific background
  • Experience in OpenStack or Network/Systems automation
  • Certification in the field of Network/Sysadmin/Security would be an asset
What you will be doing:
  • Work in teams to deploy and maintain scalable and reliable data center networks
  • Troubleshoot network, hardware, and Linux OS related issues
  • Perform deep dives on technical issues within the DC
  • Build and operate petabyte scale storage solutions
  • Create and test documentation for the global data center knowledge base
  • Assist with process improvements and best practices in data center operations
  • Contribute to servers and network security
  • Build high performance monitoring and self-healing solutions for both networks and servers
  • Help to improve backup strategies and implement them
  • Understand and be able to write software to improve automation and site reliability
Why work at ProtonMail:
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Work in an ultra-high grow environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable early employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

Location: San Francisco, Geneva, Zurich, Prague, Skopje. Remote may also be possible.
Type: Full-time.
Experience: Prior software development experience is necessary

About Us:

Proton Technologies has around 40 employees located in Geneva, San Francisco, Skopje, Prague, Zurich and also remote around the world. You will be working on iOS and MacOS apps that will be used by millions of people worldwide. You will be joining a dynamic, vibrant, and highly talented software team.

As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply. We will provide all necessary residency and work permits.

What You Need for this Position:
  • Experience in iOS development, with sample apps you are proud of.
  • 2+ years of experience in software development with a strong command of OOP.
  • Experience working with RESTful web APIs.
  • Knowledge of Git or other source control.
  • Experience with Swift (or the ability to learn it quickly).
  • Extensive experience working on extremely complex software projects
  • Strong background in computer science (algorithms, data structure, software design, reliability, maintainability, etc)
  • Ability to keep up in an extremely fast-paced environment

Bonus points for:
  • Well versed in security and with a good understanding of security best practices for mobile development
  • Bachelors degree in a relevant field of study and/or scientific background from a top institution
  • Math/Physics/CS competition winner (ACM ICPC, International Math/Physics Olympiad, Putnam, etc)
  • Highly rated apps in App store with large number of downloads

What you will be doing:

Contribute to the iOS and MacOS development effort for existing and future products created by Proton Technologies (ProtonMail, ProtonVPN, etc). Interact with our existing backend REST APIs and provide feedback based on mobile needs. Work with web, backend, and server teams on building new features. Work with QA/Support team in analyzing and debugging.


Why work at ProtonMail?
  • You will learn many things you can't learn anywhere else
  • Flexible and casual working environment
  • Startup environment where everyone matters and can make a big impact
  • Have the opportunity to drive and be responsible for a product from start to finish
  • Work in an ultra high growth environment solving interesting problems, there is never a boring moment
  • Work with other exceptional engineers on challenging problems
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable early employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to and explain why you are interested in working at ProtonMail along with links to your apps you've worked on that you are most proud of.

Location: Geneva, Zurich, San Francisco, Prague, Macedonia, Lithuania, Ukraine. Remote may be possible.
Type: Full-time.
Experience: Prior software development experience is necessary

About Us:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as Gmail. Since then, we have grown to become the world's premier secure email service with over 5 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

Candidates must be fluent in English.

Job Description

You will work on the ProtonMail API which fuels the ProtonMail clients (Web, iOS, Android) for over 10 million users. You will lead the improvements of our API, in particular with respect to: quality, architecture, tooling, documentation, performance, etc.

Requirements:
  • PHP
  • PHP framework (Symfony, Laravel, Cakephp, Zend, etc.)
  • SQL
  • Unit testing
  • Collaborative coding workflow (git)
  • Tooling (composer, PSR, etc.)

Bonus points for:
  • Redis
  • Docker (and possibly Kubernetes)
  • Fluent with GoF design patterns
  • Strong background in computer science (algorithms, data structures, software design, reliability, maintainability, etc)
  • Familiar with GNU/Linux environments
  • Well versed in security and with a good understanding of security best practices from an application development standpoint (OWASP)
  • Anything you can provide to improve ProtonMail

Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to and explain why you are interested in working at ProtonMail.

Location: Zurich or Geneva.
Type: Full-time.
Experience: Expert.

Job Description

We operate our own cloud infrastructure distributed across multi-tenant datacenters throughout Switzerland, with over 1 Petabyte of storage.

You will be responsible for designing, deploying and maintaining our Software Defined Storage (Ceph) containing user data for high availability and manageable growth. You will benchmark new hardware, tune OS parameters and create operation procedures for redundancy and backup. You will be working with a team of Software Engineers who will develop new backends that will store data in our Storage cluster, and you might be writing tools and plugins to enable this integration. You will be working in an international environment in our Zurich office, where English is the primary language.

Requirements:
  • Experience with deploying and operating a massive storage solution
  • i.e. Ceph, HDFS, GlusterFS, QFS, HBase, Cassandra, MongoDB...
  • Solid understanding of Linux (RedHat/CentOS preferred)
  • Fluent in Python/Go and Shell Scripting
  • Experience with Docker, Kubernetes or Ansible

Bonus points for:
  • Experience with Ceph
  • Experience with OpenStack
  • Experience with OpenCloud/NextCloud
  • Experience in Data Center planning/deployment
  • Software Engineering experience
  • Fluency in C++, PHP and/or SQL
  • Ability to keep up in an extremely fast-paced environment
  • Masters degree in a relevant field of study and/or scientific background

Why work at ProtonMail?
  • You can play a key role in driving the product vision.
  • Opportunity to develop your career path in a fast-growing company.
  • Your work will have a direct and visible impact on the development of the company.
  • Your work will directly be used by millions of people worldwide.
  • We protect the privacy of journalists, dissidents, and activists around the world, your work will have a direct social impact.
  • We are challenging giants such as Google, Yahoo, and Microsoft and transforming the way private data is treated online.
  • Informal culture with emphasis on self-management.
  • Product decisions made directly by the development team.
  • Free books, free fruit, coffee, and tea at the office.
  • Work with and learn from an extremely talented and supportive team.

How to apply?

Send your resume to (English) and explain why you are interested in working at ProtonMail.

 

Open Positions (Non-Technical)

Location: Geneva, Zurich, Switzerland preferred.
Type: Full-time.
Experience: 3-5 years of relevant experience

Description:

ProtonVPN is a subsidiary of Proton Technologies AG. Proton Technologies AG is one of Switzerland's fastest growing and most significant startups, principally known for ProtonMail, the world's largest secure email service, with millions of users in over 150 countries. The ProtonVPN division is successful in its own right, with around 1 million users worldwide, several million CHF in revenue, and a rapid growth rate.

We are searching for a dynamic leader to join ProtonVPN as Director, responsible for the entire division, and reporting directly to Proton's CEO and Board of Directors. In this role, you will have the opportunity to scale an already successful division, into becoming the dominant player in the billion dollar VPN market, building upon Proton's unique position within the consumer privacy and security sector.

The ideal candidate for this position has a proven track record for effective team management and results-driven leadership in a startup environment. In particular, we are seeking candidates with strong backgrounds in B2C technology, product, and marketing. This position will be based in Switzerland (most likely Geneva or Zurich) and will require some travel between the different Proton offices in Europe.

Responsibilities and duties:
  • Lead and help drive ProtonVPN's continued growth and expansion.
  • Help hire and build ProtonVPN core team (technical and non-technical)
  • Achieve strong growth through a focus on superior product combined with an effectively implemented marketing strategy
  • Represent the company as required, including attendance of important functions, industry events and public meetings
  • Prepare annual budgets, complete risk analysis on potential investments, and advise Proton's Board of Directors with regard to investment risk and return
Qualification and skills:
  • Bachelor’s or Master’s Degree in a relevant field of study (recommended, not required)
  • More than 3 years of managerial experience
  • Strong ability to organize effectively, delegate responsibility, solve problems quickly and communicate clearly
  • Leadership and organizational skills, including the ability to manage time effectively and handle both internal and external conflicts
  • Proven ability to motivate, lead, and drive teams
  • Broad previous experience in B2C tech (anti-virus would be a related industry)
  • Strong marketing/branding background with a k een sense for product
  • Previous startup/entrepreneurship experience is a plus

How to apply?

Please send your resume to (English)

Location: Geneva, San Francisco
Type: Full-time.
Experience: Senior. 2+ years of relevant experience.

Description:

ProtonMail was started by scientists and engineers from CERN in 2013 to make end-to-end encrypted email as easy to use as traditional email. Since then, we have grown to become the world's premier secure email service with over 9 million users and a profitable business model. We are rapidly scaling our talented teams to improve our core email product as well as to build an entire suite of web services that safeguards privacy in the digital age.

As Agile Leader / Lead Scrum Master you will coordinate our teams’ education and migration to more formalized Scrum development processes and help recruit, train, and lead a team of Scrum Masters. We plan to adopt Scrum gradually, scaling to more development teams as you build your Scrum Master team.

Responsibilities
  • Provide support to team members in collocated or remote contexts, across international time zones and across other Agile teams to create high-value product
  • Coach the team in organizational environments in which Scrum is not fully adopted
  • Schedule daily Scrum meeting and sprint planning
  • Represent and lead discussions related to product/application/modules/team and build relationships with internal customers/stakeholders
  • Help resolve complex problems; take a new perspective using existing solutions
  • Manage cross team dependencies and eliminate roadblocks for the team
Requirements:
  • 2+ years of experience in a software engineering role
  • Scrum Master certification is required
  • Experience as an Agile Leader is a plus
  • Bachelor's degree in a technical field or equivalent practical experience.
  • Strong leadership skills, time management, conflict resolution, and analytical skills
  • Enthusiastic - Must be high-energy
  • Ability to work under constant deadline pressure and manage multiple projects across multiple lines of business.
  • Fluency in English.
  • Proficiency in another major language will be considered as an asset.
Why work at ProtonMail:
  • You can play a key role in driving the product vision.
  • Your work will have a direct and visible impact on the development and growth of the company.
  • We are challenging tech giants and transforming the way private data is treated online.
  • Flexible work schedule.
  • Informal culture with emphasis on self management.
  • Office amenities (snacks, books, events) designed to support employees both personally and professionally.
  • Attend conferences when you want.
  • Work with and learn from an extremely talented and supportive team.

How to apply?

Submit a resume to .

Location: Zurich, Geneva, Vilnius
Type: Full-time.
Experience: Experienced

Description:

Proton Technologies has around 80 employees located in Geneva, San Francisco, Vilnius, Skopje, Prague, Zurich and also remote around the world. As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply.

What you will be doing:
  • Work with our design and development teams to ensure our web and mobile products are highly usable and aesthetically beautiful at the same time
  • Improve the copy, design, and UX flows to ensure the optimal user experience
  • Work with customer support team to ensure we solve customer pain points
  • Ensure we bring the best possible product to the market
  • Oversee product development including planning, refinement, review, retrospective, sprint and daily scrum
  • Come up with ideas and concepts for new and innovative products which can increase the reach of ProtonMail
  • Help ProtonMail reach new markets by optimizing our products to promising niches
Required experience:

You should have a track record of managing full product lifecycle, preferably in both B2C and B2B context.

Why work at ProtonMail:
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Submit a resume to . Include a description of why your previous experience makes you a good candidate for this position, and one non-obvious idea for a ProtonVPN product improvement.

Location: Skopje, Macedonia.
Type: Full-time.
Experience: 1-3 years of relevant experience.

Description:

The Social Media Specialist will be joining ProtonMail's marketing team and working from our office in Skopje, Macedonia. You will be joining a growing and highly diverse team creating tech products used by millions of people around the world.

What you will be doing:
  • Work closely with the Customer Support team to implement marketing and communication strategy in the daily tasks.
  • Monitor mentions of ProtonMail across the Internet, from news articles to message boards to social media. Help prepare responses when appropriate.
  • Provide customer support on social media (Twitter, Facebook, Reddit, Blog, YouTube).
  • Support innovative digital marketing initiatives to drive the growth of the company's B2C business.
  • Work on acquisition initiatives that can span all sectors of marketing, including social media, blogging, partnerships, etc. We encourage people to think outside the box.
  • Develop and maintain key marketing metrics in order to test what works and what doesn’t.
  • Plan and follow-through with the content plan together with the communications team.
  • Manage WordPress postings.
Requirements:
  • Relevant experience in digital marketing (preferably in the technology sector).
  • Experience managing successful social media accounts, and a solid understanding of social marketing will be considered as an asset.
  • Ability to work in fast growing company and balance multiple projects across multiple lines of business.
  • Understanding of web metrics, digital analytics, with the ability to generate, analyze and interpret data.
  • Excellent oral and written communication skills.
  • Fluency in English.
  • Ability to speak and understand French or German will be considered a plus.
  • Bachelor's degree or diploma in marketing, writing, or English is considered a plus.
Why work at ProtonMail:
  • You can play a key role in driving the product vision.
  • Your work will have a direct and visible impact on the development of the company.
  • Your work will directly be used by millions of people worldwide.
  • We protect the privacy of journalists, dissidents, and activists around the world, your work will have a direct social impact.
  • We are challenging giants such as Google, Yahoo, and Microsoft and transforming the way private data is treated online.
  • Flexible work schedule, work when you want, where you want.
  • Informal culture with emphasis on self management.
  • Work with and learn from an extremely talented and supportive team.

How to apply?

Please send your resume to (English)

Location: Geneva, Vilnius.
Type: Full-time.
Experience: Senior. 3-5 years of relevant experience.

PPC specialist will be joining ProtonMail's marketing team and working from our offices in Switzerland or Lithuania. You will be joining a growing and highly diverse team creating tech products used by millions of people around the world.

What you will be doing:
  • Developing PPC and digital marketing strategies that incorporate multiple PPC channels, clever marketing tactics and creative thinking.
  • Overseeing existing PPC campaigns and making recommendations on how to optimise them.
  • Managing user acquisition funnels such as our homepage, mobile apps, and sign up flows, and optimizing them to maximize user acquisition and conversion to paying customers.
  • Developing and maintaining key marketing metrics.
  • Developing, maintaining, and optimizing paid acquisition channels such as Google AdWords and AdSense, Facebook ads, Twitter ads, Reddit ads, etc.

Requirements:
  • Proven extensive experience with PPC acquisition and optimization, social media advertising, and app store optimization.
  • In-depth experience and understanding of PPC across key suppliers - Google AdWords and Bing.
  • Strong SEO and SEM knowledge.
  • Solid understanding of web metrics, digital analytics (particularly, Google Analytics) with the ability to generate, analyze and interpret data.
  • Experience with budget forecasting and planning.
  • Proficiency in English.
  • Ability to speak and understand French or German will be considered an asset.
  • Ability to work under constant deadline pressure and manage multiple projects across multiple lines of business.
  • Passion for PPC, willingness to learn and stay at the forefront of new features and new digital marketing tools.
  • Experience in digital marketing within the tech industry is a plus.
  • Hold valid Google AdWords Advanced Certification is a plus.
  • Bachelor's degree or diploma in Marketing is a plus.

Why work at ProtonMail:
  • You can play a key role in driving the product vision.
  • Your work will have a direct and visible impact on the development of the company.
  • Your work will directly be used by millions of people worldwide.
  • We protect the privacy of journalists, dissidents, and activists around the world, your work will have a direct social impact.
  • We are challenging giants such as Google, Yahoo, and Microsoft and transforming the way private data is treated online.
  • Work with and learn from an extremely talented and supportive team.

Interested in applying? Please contact us at (English)

Location: Skopje, Macedonia
Type: Full-time.
Experience: Any, must be willing to learn fast

Description:

Customer support is one of the most rapidly growing teams at ProtonMail, providing ample opportunity for rapid career advancement. Customer support at ProtonMail also includes B2B account management and sales, quality assurance, technical documentation, and project management. Thus, it provides many opportunities for learning new skills and personal growth.

As a technical support specialist, you will be involved in the following activities:
  • Communicating with customers facing issues and answering questions
  • Answering pre-sales questions from both B2C and B2B customers
  • Identifying and gathering information on customer issues and communicating them promptly to engineering teams
  • Doing quality assurance testing prior to product releases
  • Development technical documentation and optimizing customer support processes
  • Coordinating along engineering, product, and design teams and company management
  • Defining priorities and managing timelines for engineering teams, such as defining release conditions and release dates
  • Helping to train and mentor new technical support specialists
  • Helping to improve a product that is used by millions of people around the world, some of whom depend on ProtonMail to stay alive
Requirements:
  • A technical background is required because ProtonMail contains many highly sophisticated features which require technical knowledge
  • Some previous exposure to, and basic understanding of programming
  • Responsible, with good attention to detail
  • Team player with good communication skills
  • Weekend shifts will sometimes be required

How to apply?

Please send your resume to

Location: Vilnius, Prague, Skopje
Type: Full-time.

Who We are:

Proton Technologies has around 80 employees located in Geneva, San Francisco, Vilnius, Skopje, Prague, Zurich and also remote around the world. You will be working on QA and will be responsible for ensuring all aspects of quality at ProtonMail.

As you will be working in an international environment, English fluency is mandatory. Women and other underrepresented groups are highly encouraged to apply.

What You will be doing:
  • Review user requirements documents to ensure that requirements are testable;
  • Test applications to demonstrate that the relevant existing system functionality is as expected;
  • Direct communication with both Development and Product definition teams;
  • Work closely with developers; help to design and build automated tests;
  • Ensure that defects uncovered in the test are recorded, summarized and utilized in post project reviews in an effort to improve the development and test processes;
  • Develop methodical approaches to all tasks;
  • Ability to prioritize workloads and meet deadlines.
Preferred Qualifications:
  • Being able to build thorough testing plans and conduct comprehensive tests which catch issues before new products are released to users;
  • Strong experience with manual testing, testing tools, writing test plans, and reviewing test cases;
  • A methodical approach to all tasks;
  • Responsible with good adherence to deadlines;
  • Develop test cases and maintain a thorough understanding of product functionality;
  • Write clear and accurate bug reports;
  • Development capabilities are plus to eventually code automated tests;
  • At least 1+ year experience in testing
Why work at ProtonMail?
  • Flexible and casual working environment
  • Startup culture where everyone matters and can make a big impact
  • Work in an ultra-high growth environment solving interesting problems, there is never a boring moment
  • Fast growth also means there are many opportunities for rapid advancement
  • Do something meaningful. ProtonMail protects freedom-fighters, journalists, and activists. Our work saves lives.
  • High potential upside. In addition to highly competitive salaries, key employees can receive valuable employee stock options.
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default, and not merely an afterthought. Be part of this revolution that is changing the world.

How to apply?

Send your resume to

 



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