Staff Site Reliability Engineer, Tools & Systems

🔥 0 minutes ago

🇬🇧 United Kingdom – Remote

💵 £81k - £108k / year

⏰ Full Time

🔴 Lead

⛑ DevOps & Site Reliability Engineer (SRE)

👻 Ghost score 0%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Mozilla

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1998

👥 B2C

🔒 Cybersecurity

B2C • Cybersecurity • Software

Mozilla is a non-profit organization dedicated to promoting an open and accessible internet. They are the makers of the popular Firefox browser, which emphasizes user privacy, speed, and control. Mozilla also offers a range of products that focus on internet security and privacy, including Mozilla VPN, Firefox Relay, and Mozilla Monitor. Additionally, the organization is involved in open-source projects, AI innovation, and advocating for digital rights. Mozilla aims to empower users with trustworthy technology and policies that protect privacy, support open-source AI development, and foster accountability for tech companies.

📋 Description

• 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, improving reliability, performance, observability, and cost efficiency • Work with Firefox engineering, Cloud Engineering, IT, and other teams to solve problems spanning technical and organizational boundaries • Use telemetry, metrics, and data analysis to investigate problems and guide engineering decisions • Contribute to architecture and technical strategy, identifying recurring problems and solutions applicable across teams • Contribute back to the broader open-source ecosystem

🎯 Requirements

• Strong software engineering skills and substantial hands-on experience deploying and operating production systems • Strong programming skills in languages such as Python or JavaScript/TypeScript; experience with C++ or Rust is useful • Experience building, deploying, and operating production systems in cloud environments • Experience utilizing infrastructure as code such as Terraform • Experience across several areas such as CI/CD, containers and orchestration, networking, databases, observability, or developer tooling • Experience using data, telemetry, and metrics to investigate technical problems and make decisions • Familiarity with modern AI-assisted development tools and an understanding of their capabilities, limitations, and appropriate use • Ability to work across software, infrastructure, and operational concerns • Ability to communicate openly, consistently, and respectfully, and teach and help others build skills in unfamiliar technical areas

🏖️ Benefits

• Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)