Senior DevOps Engineer

About the Team

The Dev Ops 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.

Responsibilities

• 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
• Deepen our Git Ops workflows built on Argo CD, from day-to-day operational improvements to more structural work on how we manage cluster state across environments
• Advance our supply chain security posture — we've made deliberate investments in SAST and artifact attestation, and there's meaningful work ahead to see them through
• Troubleshoot hard infrastructure problems across network, application, and system layers — the kind where the answer isn't obvious and requires pulling on multiple threads at once
• Required Qualifications
• Strong Kubernetes experience, including tuning and troubleshooting on-prem Linux systems under real load
• Hands-on CI/CD background — Git Lab CI specifically is a plus
• Git Ops in practice, ideally with Argo CD
• Software development skills in Python, Golang or Rust — enough to build and maintain the tooling around your infrastructure, not just configure it
• Configuration management experience with Ansible and/or Terraform
• A security mindset grounded in Dev Sec Ops practices — supply chain security experience is a genuine advantage here
• The communication skills to work effectively across teams and document your work clearly

What We Offer

• Work that

Matters: millions of people trust Proton with their privacy.

We answer only to our users — not advertisers, not investors with conflicting agendas, not governments.

The work you do here is real, and the impact is measurable. (read more about our impact here)

• Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win.
• Technology: you'll get the right hardware and the right software you need to do your best work.
• Learning & Development: we invest in your growth because sharp people make us better.

Proton is one of the fastest ways to accelerate your career because you'll be thrown into real challenges, with real ownership, from day one.

• Employee

Benefits: your wellbeing isn't an afterthought.

We offer strong health coverage, solid retirement options, generous leave, and wellness support so you can bring your best self to work every day

• In-Person

Collaboration: Amazing things happen when passionate, smart, and purposeful people get together in the same room.

With offices across Geneva, Zürich, Barcelona, London and more, you'll spend most of your time collaborating face-to-face with people who genuinely care about what they're building

• Food: Lunch and snacks are on us every day in our offices so you can focus on the work and not on what's for lunch.
• Transport: getting to the office shouldn't cost you. We cover public transport, bike allowances, or parking, whichever works for you.
• Flexible Working: you own your schedule. Set hours that work for you and your team — because outcomes matter more than when the clock says you started.
• 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.

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 Service Privacy Policy.

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 careers@proton. ch.

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 our privacy policy page.

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