Experienced engineer to design, build, deploy, and operate internal engineering systems and developer tools (CI/CD, workflow automation, observability) for Firefox teams. Requires strong software development skills and hands-on experience running production systems in cloud environments; familiarity with IaC (Terraform), containers/orchestration, telemetry/metrics, and AI-assisted development tools is valued. Remote — UK.

Experienced software engineer to own and deliver internal engineering systems, developer tooling, CI/CD, workflow automation, and cloud infrastructure supporting Firefox engineering. Requires strong software development skills and substantial hands-on experience deploying and operating production systems, familiarity with infrastructure as code (e.g., Terraform), telemetry/metrics, observability, and modern AI-assisted development tools.

Experienced software engineer role focused on designing, building, deploying, and operating tools and systems that support Firefox engineering. Responsibilities include developer tooling, CI/CD, workflow automation, cloud infrastructure (IaC such as Terraform), observability, telemetry-driven investigations, and contributing to open-source projects. Strong programming skills (Python, JavaScript/TypeScript; C++/Rust useful) and hands-on experience deploying and operating production systems are required.

Join Mozilla as a Staff Software Engineer on Tools & Systems to build and operate internal engineering systems, developer tooling, CI/CD, workflow automation, and related cloud infrastructure. The role involves end-to-end ownership of software and operational problems, using telemetry and metrics, contributing to architecture and technical strategy, and working openly in the open-source ecosystem. Hiring range for Remote Spain: €76,000–€101,000 EUR per year.

Responsible for designing, building, deploying, and operating software and systems that support Firefox engineering, including developer tooling, CI/CD, workflow automation, and AI-assisted development tools. Requires strong software engineering skills, hands-on experience deploying and operating production systems in cloud environments (including infrastructure-as-code like Terraform), and experience with observability, telemetry, metrics, containers, orchestration, and related areas.

Experienced staff-level software engineer to design, build, deploy, and operate internal engineering systems, developer tooling, CI/CD, workflow automation, and related cloud infrastructure to support Firefox engineering. Requires strong programming skills (Python, JS/TypeScript), hands-on experience deploying and operating production systems, familiarity with IaC (e.g., Terraform), observability, telemetry, and modern developer tooling including AI-assisted tools.

Mozilla is hiring a Staff Operations Engineer to lead architecture, reliability, and evolution of hybrid-cloud and workplace infrastructure. The role requires 6+ years in systems/infrastructure engineering and experience with VMware, Cisco UCS, Linux/Unix, networking (DNS, TCP/IP), data center environments, automation/IaC (Puppet/Ansible), Python, observability, and containerization. US-based remote; listed salary ranges span approximately $139,000–$218,000 USD annually across tiers.

Staff Operations Engineer responsible for designing and operating scalable, secure hybrid-cloud and on-prem infrastructure (compute, DNS, networking, identity, load balancers, data centers). Leads cross-team initiatives, drives migrations and reliability improvements, builds automation and IaC, mentors engineers, and maintains runbooks. Preferred experience with Puppet/Ansible, Python, observability, and containerization. Remote (Canada).