About this role

About Proton Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . 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! We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 700+ 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 here ! The Network Infrastructure Team Proton's network infrastructure is the foundation everything else runs on — and we treat it as software. We follow the Network Reliability Engineer (NRE) model: continuous observation, rapid capacity adaptation, and relentless automation so that network capabilities are delivered as APIs, not tickets. In 2024 we executed a full brownfield DC fabric migration to a new vendor stack in pursuit of better automation and reliability.

We've since invested heavily in telemetry, shipped upstream improvements to community tooling, and now operate the majority of our network infrastructure through Kubernetes controllers and internally built workflows. This is not a team that waits for vendor roadmaps. If you've wanted to build truly next-generation networking — and are comfortable doing hard things — this is the place. Tech Stack and Tools Protocols: BGP, OSPF, IS-IS, EVPN VXLAN, TCP/IP Hardware: Nokia, Juniper (hardware-agnostic, protocol-first approach) Automation / Coding: Python, Go, Rust Infrastructure: Kubernetes (controllers), Terraform, Git, Linux Telemetry: gNMIc, sFlow, BMP, Prometheus, Alertmanager, Grafana 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 Who You Are 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 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 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 <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/about/impact" data-renderer-ma

Source listing: greenhouse_proton