Build developer tooling and reliable production systems supporting Firefox engineering as a Staff Site Reliability Engineer at Mozilla. Use solid software skills across cloud and operations.

This experienced software engineering role spans internal engineering systems, workflow automation, and infrastructure. You will support Firefox engineering through CI/CD, observability, telemetry, and AI-assisted development tools. The work combines hands-on delivery with systems thinking and technical judgment.

Key Responsibilities:

- Design, build, deploy, and operate software supporting Firefox engineering
- Develop CI/CD, workflow automation, and developer tooling
- Own complex problems across software, cloud, and operations
- Use telemetry and metrics to guide engineering decisions




- Contribute to architecture and technical strategy across teams

Requirements:

- Strong software development and production operations experience
- Cloud deployment experience using infrastructure as code, including Terraform
- Strong programming skills in Python or JavaScript/TypeScript
- Experience across observability, containers, networking, databases, or CI/CD
- Ability to work across disciplines and unfamiliar systems

Apply software engineering, cloud operations, and developer tooling expertise to improve Firefox engineering systems at Mozilla.

📌 Staff Site Reliability Engineer Tools (Ottawa)
🏢 Mozilla
📍 Ottawa