Specialty
The role
Mozilla is hiring a staff-level site reliability engineer to build and run the tools, CI/CD and infrastructure behind Firefox engineering. The role is remote and open to candidates in Belgium.
What you will do
- Design, build, deploy and operate systems that support Firefox engineering
- Contribute to developer tooling, CI/CD, workflow automation and AI-assisted development tools
- Own complex technical problems end to end across teams
- Set operational standards and build automation that makes systems easier to run
What they ask for
- Substantial hands-on experience deploying and operating production systems
- Strong programming in Python or JavaScript/TypeScript; C++ or Rust a plus
- Cloud production experience with infrastructure as code such as Terraform
- Experience across CI/CD, containers, networking, databases, observability or developer tooling
- Using telemetry and metrics to investigate technical problems
What they offer
- Performance-based bonus plan
- One-time home office stipend
- Annual professional development budget
- Paid parental leave
- Country-specific holidays plus a birthday day off
This is our own short reading of the posting. The full description, and anything that has changed since, is on Mozilla's careers page behind the apply button.

