We're hiring

Build the sovereign cloud of tomorrow

We're building the post-cloud: a 100% open source, fully reversible alternative to hyperscalers. 3 senior co-founders, zero legacy, and you'd be our first hire.

Why join us

We build infrastructure, not slide decks

Bunker builds post-cloud infrastructure for companies that want out of AWS and Azure. Everything is open source, everything is reversible. Clients can bring it all back in-house whenever they want.

Sovereign mission

European companies shouldn't have to depend on AWS or Azure to run their business. That's the problem we're solving, one service at a time.

Pick your own tools

No architecture committees. No imposed stack. You think Ceph is the wrong call? Make the case, we'll listen.

Equity (BSPCE)

BSPCE from day one. If Bunker wins, you win too. Simple as that.

Senior team

3 co-founders, 15+ years combined in cloud architecture, security and infra. We've shipped before and we know what we're building.

Open positions

The team is growing

We need people who want to build things, not just keep them running.

DevOps / SRE Engineer

Actively hiring

Sovereign Cloud

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Hybrid — Western France Permanent (CDI) 42-50k€ + equity
Kubernetes Proxmox GitLab CI PostgreSQL Security

You'd be our first hire. You'll work alongside 3 co-founders building the post-cloud platform: open source, reversible, sovereign. Expect 70% build, 30% run.

What you'll do

Platform & Catalogue
  • Deploy and maintain an open source application catalogue on Kubernetes
  • Package applications as production-ready Helm charts
  • Automate CI/CD pipelines with GitLab CI and BuildKit
  • Build observability and control tools for clients
Orchestration & Interconnection
  • Design multi-tenant orchestration on Kubernetes
  • Implement smart interconnection between application stacks (ERP, BI, CRM)
  • Set up automatic scaling and high availability
  • Manage PostgreSQL in production (CNPG, backups, tuning)
Micro-Datacenters & Security
  • Industrialize micro-DC deployment at client sites (plug & play servers)
  • Set up zero trust network architecture
  • Layer our defense-in-depth strategy
  • Help build AI-driven defensive security on top of XDR

Stack

Kubernetes Proxmox VE PostgreSQL Ceph S3 Grafana Prometheus Loki Mimir GitLab CI BuildKit Rust Linux

Must-have

  • 3-5 years of experience in DevOps / SRE
  • Kubernetes: deployment, troubleshooting, Helm
  • Proxmox VE or KVM virtualisation
  • CI/CD: GitLab CI or equivalent
  • PostgreSQL in production
  • Linux: advanced system administration
  • Network security: firewalling, segmentation, hardening
  • Scripting and development: ability to code automation tools
  • Post-mortem culture and incident management
  • Developer eXperience mindset

Nice-to-have

  • Ceph or distributed storage
  • Grafana, Prometheus, Loki, Mimir
  • Rust
  • Zero trust networking
  • XDR and endpoint security

What we offer

Hybrid remote in Western France (occasional presence in Vendée/Nantes)
Equity (BSPCE) from day one
On-call schedule designed together
100% open source stack
You pick your own tools
No inherited tech debt. Everything is new.

Hiring process

1

Application by email (CV + a few words about your motivation)

2

Technical discussion with the co-founders (1h)

3

Take-home exercise on your specialty (async, at your pace)

4

In-person meeting

No position matches your profile?

Drop us a line anyway. We care more about what you can build than whether a role is posted.

Spontaneous application