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