Anforderungen auf einen Blick

SRE experience (Erforderlich)
Python (Erforderlich)
Go (Erforderlich)
Observability stacks (Erforderlich)
Kubernetes (Erforderlich)
GitOps (Erforderlich)
Infrastructure as code (Erforderlich)
Linux administration (Erforderlich)
OpenTelemetry (Wünschenswert)
ClickHouse (Wünschenswert)
AI ML tooling (Wünschenswert)

ErforderlichWünschenswert

Heute

Site Reliability Engineer - Observability

Geneva; Paris

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.

Purpose of the role

We're a small, tool-agnostic team that owns the observability infrastructure behind Proton's services — the logs, metrics, traces, and alerts that keep systems running smoothly for the millions of users who trust us with their privacy. We run on open-source stacks across Proton's on-premise data centers, and we dogfood heavily: we're our own first customers. We favor simple, solid solutions over large engineering efforts, and we believe good systems emerge iteratively. You'll join a group that values frank, open communication and a problem-solving mentality — if you want narrow scope and a fixed backlog, this isn't the right fit.

Tech Stack and Tools

Languages: Python, Go
Observability: open-source stacks for logs, metrics, traces, alerting; OpenTelemetry
Orchestration: Kubernetes
GitOps: ArgoCD
Infrastructure-as-code: Terraform, Ansible, Puppet
Storage at scale: ClickHouse
Platform: Linux, on-premise data centers

What You'll Do

Design, deploy, and operate observability pipelines for logs, metrics, traces, and alerts across Proton's services using open-source technologies.
Partner with development and platform teams to ship practical alerting, dashboarding, and integration solutions that engineers actually rely on.