Senior Site Reliability Engineer - Open-Source Cloud & Tools

Remote; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Bonus plans

Medical coverage

Retirement contributions

Wellness days

Home office stipend

Professional development budget

Parental leave

Referral bonus

Job summary

Mozilla Corporation in San Francisco seeks an experienced software engineer to design, deploy, and operate production systems and tooling for Firefox engineering. You will help advance CI/CD, workflow automation, and AI-assisted development tools across cloud and on‑prem environments.

You will collaborate with cross‑functional teams to improve reliability, observability, and cost efficiency while promoting open-source principles and scalable architectures.

Qualifications

• Strong software engineering skills and substantial hands-on experience deploying and operating production systems.
• Experience building and supporting developer tooling, CI/CD, workflow automation, and AI-assisted development tools.
• Familiarity with telemetry, observability, and data-driven decision making.

Responsibilities

• Design, build, deploy, and operate software and systems supporting Firefox engineering.
• Contribute to developer tooling, CI/CD, workflow automation, and AI-assisted development tools.
• Own complex technical problems end-to-end across software, cloud, and operational layers.
• Collaborate with Firefox engineering, Cloud Engineering, IT, and other teams to solve cross-cutting issues.
• Use telemetry and metrics to investigate problems and guide engineering decisions.
• Contribute to architecture and technical strategy with scalable patterns.

Skills

Python

JavaScript/TypeScript

C++

Rust

AI-assisted development tools

Cloud environments

Tools

Terraform

Docker

Kubernetes

Job description

Mozilla Corporation in San Francisco seeks an experienced software engineer to design, deploy, and operate production systems and tooling for Firefox engineering. You will help advance CI/CD, workflow automation, and AI-assisted development tools across cloud and on‑prem environments.

You will collaborate with cross‑functional teams to improve reliability, observability, and cost efficiency while promoting open-source principles and scalable architectures.