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Network Reliability Engineer

Proton· CC - Infrastructure - Network
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Hybrid (Geneva;Paris)€50k - €77kfull-timePosted 3mo ago

About the role

Proton’s Network Infrastructure Team builds next-generation, API-driven network capabilities with a focus on reliability, automation, and telemetry. The role centers on maintaining and evolving Proton’s global network, contributing to migrations, and exposing network functionality via self-service APIs.

Responsibilities

  • Own the reliability and performance of Proton's network infrastructure — monitor, troubleshoot, and implement protocol-level optimizations to maximize uptime across the global fleet
  • Deploy and maintain network security controls — firewalls, IDS/IPS, ACLs — without relying on vendor-specific shortcuts; ensure they meet Proton's strict privacy and security standards
  • Build and improve automation tooling in Python, Go, or Rust to reduce manual operations and expose network capabilities as self-service APIs
  • Lead or contribute to network upgrades and migrations — including DC fabric changes — with minimal disruption and strict adherence to protocol best practices
  • Operate and extend our telemetry pipelines and Kubernetes-based network controllers; contribute upstream when our work benefits the community
  • Participate in an on-call rotation, respond to high-severity incidents, and drive post-mortems through to corrective action

Qualifications

  • 5+ years of hands-on experience implementing and operating enterprise-scale networks in production
  • Deep, practical knowledge of BGP, OSPF, IS-IS, EVPN VXLAN, and TCP/IP — you reason from the protocol, not the vendor UI
  • Experience configuring network security controls (firewalls, IDS/IPS, ACLs) without dependence on proprietary features
  • Able to script confidently in Python, Go, Rust, or equivalent to automate monitoring and configuration workflows
  • Solid Linux and DevOps fundamentals: comfortable at the CLI, with Terraform, and with Git-based workflows
  • Hardware-agnostic mindset — you've worked across multiple vendors and know that the protocol stack is what matters

Skills

Required:Network protocol expertiseNetwork security controlsAutomation scripting

Benefits

  • Work that Matters: millions of people trust Proton with their privacy.
  • Stock Options: ownership from day one.
  • Technology: right hardware and software to do your best work.
  • Learning & Development: growth opportunities and challenging assignments from day one.
  • Employee Benefits: health coverage, retirement options, generous leave, wellness support.
  • Office First: primarily in-office with some flexibility for remote work.
  • Food: daily lunch and snacks in offices.
  • Transport: coverage for public transport, bike allowances, or parking.
  • Flexible Working: set hours that suit you and your team.
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Proton

Privacy by default

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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