Senior DevOps Engineer

<p data-renderer-start-pos="5" data-local-id="fd2168cf107d"><strong data-renderer-mark="true">About Proton </strong></p> <p data-renderer-start-pos="20" data-local-id="384391c2485b"><strong data-renderer-mark="true">Join Proton and build a better internet where privacy is the default</strong></p> <p data-renderer-start-pos="90" data-local-id="70873c53c148">Proton was founded in 2014 by scientists from CERN on a simple truth: <strong data-renderer-mark="true">privacy is a fundamental human right</strong>. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives!</p> <p data-renderer-start-pos="520" data-local-id="bb6a25ba35fe">We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects <a class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu1v1w _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu1r31 _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b1r31 _4fpr8stv _5goinqa1 _f8pj13af _9oik1r31 _1bnxglyw _jf4cnqa1 _30l313af _1nrm1r31 _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" href="https://proton.me/community/open-source" data-renderer-mark="true">here</a>!</p> <p><strong>The team:</strong></p> <p>The DevOps team builds, maintains and scales the developer tooling platform and infrastructure that hundreds of engineers at Proton rely on daily, across both on-premises and cloud environments. Security isn't an afterthought — it's a core constraint we design around.</p> <p> </p> <p><strong>What you will do:</strong></p> <ul> <li>Own and scale CI/CD infrastructure handling tens of thousands of jobs daily and growing — that means capacity planning, runner architecture, and making the platform reliable as load patterns shift in ways that don't follow simple rules</li> <li>Deepen our GitOps workflows built on ArgoCD, from day-to-day operational improvements to more structural work on how we manage cluster state across environments           &amp