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For Companies Join Proton and build a better internet where privacy is the default
At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online.
Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech’s invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information. In some cases, Proton’s services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.
Proton is a profitable company that does not rely upon VC funding, supporting over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world\’s top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online.
Hiring at Proton is highly selective, with less than 1% of candidates hired. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity work with many of the world\’s top minds in their fields, ranging from former international math and science olympiad winners to chess champions.
We have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our open-source projects !
The Team
Our business unit, Inbox, is a cross-functional team of about 60 engineers, product managers, designers and data analysts driving the development of Proton Mail, the company’s flagship product, and Proton Calendar. Our mission is to create an end-to-end encrypted solution with a better user experience than any other productivity products on the market. While it is not always an easy journey, it is one that offers the chance to create meaningful impact and drive lasting change that we are fully committed to.
The Inbox Desktop team is responsible for developing desktop clients of Inbox, specifically the Proton Mail Desktop App, Proton Mail Bridge, and the Export tool. We are in the process of rebuilding our client applications on a new, innovative technology stack centred around cross-platform Rust code. We are looking for a Senior Software Engineer to take the technical ownership of the Proton Mail Desktop App on Windows and Linux platforms.
Currently, we use many languages and frameworks in the team like Golang, C++, Qt, JS, TypeScript, React, or Electron. We use standard tools for communication and work organization (Git, GitLab, GitHub, GitLab CI, Jira, Confluence). Our backend runs on premise in Proton’s data centers, and all our client-code is open source and GPL3.
Purpose of the role
As a Senior Software Engineer in the Inbox Desktop team, you will play a crucial role in driving the development of one of Proton\’s most vital desktop offerings, the Proton Mail Desktop App. We expect you to be customer-centric, continuous learner, passionate about technology and usability. You are adept at turning technical complexities into seamless user experiences. Effective teamwork, data-driven decision-making, using APIs wisely, collaboration with Product, Design, and with other teams are essential aspects of this role.
In the Inbox organization, we believe that a psychologically safe environment is critical to foster innovation, collaboration, and growth. We are rooted in science, and according to both academic research and empirical evidence, teams that feel safe to take risks and express their ideas are more likely to be innovative and perform better: you will play a key role in helping us creating such an environment across the entire organization.
What you will do
Job requirements
While we prefer candidates who cover the entire skillset, don\’t hesitate to apply if you\’re not an exact match, as we\’re willing to help you grow in certain areas.
Bonus Points For:
What We Offer:
Our Commitment to Diversity and Inclusion
At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability, or socio-economic background, feel valued and empowered. We strive to create equal opportunities, promote open dialogue, and support continuous learning to ensure every voice is heard and respected.
If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.
Candidate Privacy Notice
When you apply for a position, refer a candidate, or are considered for a role at Proton Technologies AG (Proton, we, us, or our), your information is stored in Greenhouse, in accordance with their This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills.
If we no longer have a legitimate business need to process your information, we will either delete or anonymize it. Should you have any inquiries about how we use or manage your information, or if you wish to access, correct, or delete your data, please contact our privacy team at .
Proton does not accept unsolicited resumes from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton.
To learn more about our privacy policy, please visit .
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Contact Detail:
Proton Technologies Recruiting Team
Some tips for your application 🫡
Show Your Passion for Privacy: When writing your application, let your enthusiasm for privacy and security shine through. We want to see how you connect with our mission at Proton and why you believe privacy is a fundamental right.
Tailor Your Experience: Make sure to highlight your relevant experience in software development, especially with Rust or C++. We’re looking for candidates who can demonstrate their technical skills and how they align with the role of Senior Software Engineer.
Be Clear and Concise: Keep your application straightforward and to the point. Use clear language to describe your achievements and experiences, as we appreciate effective communication skills just as much as technical prowess.
Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it shows you’re serious about joining our team!
