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Senior DevOps Engineer

Proton· CC - Infrastructure - Developer tooling
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Hybrid (Paris, Genève, Barcelona)€51k - €76k + equityFull-timePosted 6mo ago

About the role

Senior DevOps Engineer responsible for owning and scaling CI/CD infrastructure, advancing GitOps practices, enhancing supply chain security, and troubleshooting complex infrastructure across networks, applications, and systems.

Responsibilities

  • Own and scale CI/CD infrastructure handling tens of thousands of jobs daily and growing — capacity planning, runner architecture, and ensuring platform reliability under varying load
  • Deepen our GitOps workflows built on ArgoCD, from day-to-day operational improvements to managing cluster state across environments
  • Advance our supply chain security posture — SAST and artifact attestation initiatives and related work
  • Troubleshoot hard infrastructure problems across network, application, and system layers — complex multi-thread debugging

Qualifications

  • Strong Kubernetes experience, including tuning and troubleshooting on-prem Linux systems under real load
  • Hands-on CI/CD background — GitLab CI is a plus
  • GitOps in practice, ideally with ArgoCD
  • Software development skills in Python, Golang or Rust
  • Configuration management experience with Ansible and/or Terraform
  • Security mindset grounded in DevSecOps practices — supply chain security experience is a plus
  • Strong communication skills and ability to document work clearly
  • Collaborative, knowledge-sharing mindset

Skills

Required:KubernetesCI/CDGitOpsPython
Nice to have:GolangRustAnsibleTerraform

Benefits

  • Work that Matters: millions of people trust Proton with their privacy
  • Stock Options: ownership opportunity from day one
  • Technology: hardware and software resources provided
  • Learning & Development: growth investment and real challenges from day one
  • Employee Benefits: health coverage, retirement options, generous leave, wellness support
  • Office First: primarily in-office with some home-working flexibility
  • Food: lunch and snacks provided
  • Transport: covered commuting costs (public transport, bike, or parking)
  • Flexible Working: outcome-focused scheduling
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Proton

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Proton was started in 2014 by scientists who met at CERN and shared a vision of an internet that defends freedom and puts people first.

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