Systems and Site Reliability Team Lead- VPN

Job description

A better internet, where privacy is the default, is possible. Building this better internet might seem daunting or even unthinkable, but at Proton, this is what we do every day.

Proton was founded in 2014 by a group of scientists who met at the European Organization for Nuclear Research (CERN). Our first product, Proton Mail, is now the world’s largest encrypted email service. Subsequent Proton products, such as Proton VPN, Proton Calendar, and Proton Drive, give our users full control over how and with whom their data is shared.

Today, Proton makes privacy universally accessible. Journalists from outlets like The Guardian and The New York Times, some of the world’s largest organizations, and people in more than 180 countries have signed up for over 70 million accounts. Our diverse and dynamic team is made up of more than 400 members representing over 40 different nationalities. While we are based in Geneva, Switzerland, we have offices in Zurich, Prague, London, Vilnius, Skopje, Taipei, and many more employees working remotely around the world.

Join one of Europe’s fastest-growing companies to help us solve challenging problems and build new products that will reach hundreds of millions of people. We want to create more than just one of the world’s most impactful tech companies; we want to create a new internet that serves the interests of all people. We need you, your voice, your ideas, and your ambition to make it happen.

Purpose of the role
Proton continues to scale at a rapid pace, and we're looking for experienced Site Reliability Engineers to join our team. As part of the Proton VPN Infrastructure team, you will lead the infrastructure team responsible for the continuous improvement and growth of Proton VPN's globally distributed infrastructure.

You will liaise with the VPN R&D Team, and with Client Teams, to ensure the quality of our service is continuously improving to best serve our growing user base. You will also ensure the tooling used to perform operations becomes increasingly efficient, allowing us to accelerate Proton VPN’s growth and our ability to adapt to very rapidly changing circumstances in the global landscape.


What you will do

  • Establish service level objectives for your team and monitor service level indicators
  • Continuously improve our monitoring and observability strategy at the infrastructure layer
  • R&D new technologies & processes to optimize our infrastructure operations and performance
  • Promote SRE best practices in our infrastructure architecture, and in build and deployment pipelines
  • Contribute to work in our security layers
  • Lead the System Administration Team
  • Actively collaborate with the other VPN and Proton teams to find optimal solutions to everyday challenges

Job requirements

  • BA/BS degree or equivalent 
  • 10+ years of working experience preferred
  • A software engineering background or code development experience in one of the following programming languages: shell, or Python
  • Knowledge of monitoring and observability tools (such as Icinga, Prometheus, Grafana) and techniques

  • Mastery of configuration management tools (such as Ansible or Puppet)

  • Good command of networking and corresponding tooling (DNS, routing, nftables, OpenVPN, IKEv2, WireGuard...)

  • Operational experience with Linux

  • Able to troubleshoot outages or performance issues and do packet inspection analysis with WireShark

  • Excellent knowledge of performance and security practices

  • Fluent in English, our working language


Why you should join Proton

  • Be part of a movement - Proton is not just a product or service but a community-driven movement united by a shared vision of online freedom. Our services are open source, audited, and supported by community contributions. We give back to our community by maintaining core encryption libraries and supporting organizations that advance the same goals as us. Proton is free, open source, neutral, independent, and community first, while remaining financially sustainable.
  • Work with smart and dedicated people - Our team is diverse, collaborative, and tight-knit, with people coming from all walks of life. Many members of our team spent time at the world’s top academic institutions, including MIT, Harvard, Stanford, Princeton, Caltech, Cambridge, and ETH.
  • Join a strong brand - Our encrypted email service – Proton Mail - has grown to be a staple of online security and privacy. Proton has been featured in multiple popular television and film productions, such as Mr. Robot, Knives Out, Sounds of Metal, and more.
  • Grow with us - We’re one of Europe’s fastest-growing companies. Our growth gives you limitless career and educational opportunities as well as the opportunity to work side-by-side with many world-leading experts in their fields.
  • Have your voice heard - We value your opinion and encourage you to speak up and share your ideas and thoughts. At Proton, no problem is someone else’s problem. We collectively strive to do the right thing and be the undisputed best in the world at everything we do.
  • Benefits – these vary by location and type of contract but expect support on your vacation, parental leave, refreshment if working from the office, learning and development opportunities, equity for shared success, flexible working hours and remote work, company events, and team-building activities.


Proton uses the Recruitee recruitment platform for a more effective hiring process and a better candidate experience. Your data will always be kept confidential and is not shared with any third parties. You will receive emails from the email address careers@protonmail.recruitee.com or other addresses on the protonmail.recruitee.com domain as part of the recruitment process.


Proton does not accept unsolicited resumes from any sources other than directly from a candidate. Proton will not pay a fee for any placement resulting from the receipt of an unsolicited offer, even in a situation where Proton employs the relevant candidate.


By applying to a role at Proton, you acknowledge that we will process and store your personal data for at least the duration of the hiring process and as necessary to enter a contractual relationship with you.