Network Reliability Engineer

Requirements

• 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
• 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

Nice to Have

• Experience building network telemetry pipelines using gNMIc, sFlow, BMP, or similar, integrated with Prometheus and Grafana
• Kubernetes experience, specifically leveraging or adapting controllers
• Contributions to open-source networking tools or internal automation frameworks
• Involvement in NOG communities or conference speaking — we actively support community engagement

What You'll Do

• 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

Perks and Benefits

• Work that Matters: millions of people trust Proton with their privacy
• Stock Options: all employees have the opportunity to be owners of the company
• Technology: access to the right hardware and software needed to do your best work
• Learning & Development: investment in your growth to accelerate your career
• Employee Benefits: including strong health coverage, solid retirement options, generous leave, and wellness support
• In-Person Collaboration: collaboration with passionate, smart, and purposeful colleagues
• Food: lunch and snacks provided daily
• Transport: coverage for public transport, bike allowances, or parking
• Flexible Working: own your schedule for better outcomes