Mozilla - IT - Software Development

Mozilla seeks a Staff Solutions Engineer for Firefox Enterprise in France. Leverage 7+ years of experience in Sales Engineering or Security Architecture to drive strategic opportunities. You will lead technical discovery, manage pilots, and advise on Zero Trust, IAM, and endpoint management for p...

Senior Manager, Firefox Mobile Test Engineering – Remote in Spain, UK, or Germany. Lead quality strategy for Firefox Mobile, used by tens of millions. Requires 10+ years in test engineering, 5+ in management, and expertise in exploratory testing and automation. Enjoy generous bonuses, remote work...

Senior Software Engineer (Contract) needed to advance Firefox’s Web Platform. You will implement anti-tracking features and architectural improvements in C++, Rust, and JavaScript. Requires 4+ years of experience with memory safety and multi-threaded systems. Join Mozilla’s remote-friendly team i...

Senior Frontend Engineer sought to build high-quality, accessible Firefox interfaces. You'll collaborate with a distributed team, write code and tests, and tackle complex problems. Requires 4+ years of software engineering experience, including 3+ years with JavaScript, HTML, and CSS. Join Mozill...

Thunderbird seeks a Technical Support Specialist to deliver expert, empathetic support across its product ecosystem. You will troubleshoot Level 1 & 2 issues, including email protocols (SMTP, IMAP, JMAP) and DNS, using Zendesk. This fully remote role offers a company laptop, annual bonus, profess...

Lead and inspire frontend engineers at Mozilla to shape the future of Firefox Desktop. We seek a manager with 4+ years of leadership experience, a strong software engineering background, and expertise in web technologies (JavaScript/TypeScript, HTML, CSS). Drive high-quality user experiences, man...

Mozilla seeks a Senior Mixed Methods User Researcher to lead human-centered research in Canada. You will drive product strategy by combining qualitative methods (interviews, usability studies) with quantitative analysis (surveys, data). This role involves mentoring researchers, leveraging AI tool...

Senior Software Engineer - Engineering Workflow and CI. Join Mozilla to enhance Firefox developer productivity by improving CI/CD systems, build services with Python (FastAPI, Django), and work across platforms. Collaborate with a distributed team, mentor peers, and analyze workflow data. Remote ...

Senior Manager, Firefox Mobile Test Engineering – lead quality strategy for the world’s most privacy-focused mobile browser. Based in Germany, this role demands 10+ years in test engineering, 5+ in technical management, and expertise in exploratory testing, automation, and observability. You’ll s...

Join Mozilla as an iOS Engineer to shape the future of browsing on iOS with Swift and SwiftUI. You’ll design, maintain, and ship native apps, conduct code reviews, and collaborate with a global team. Based in Germany, this role offers generous bonuses, rich medical coverage, and wellness days. Co...

Senior Software Engineer sought to enhance Firefox development workflows and CI systems. You'll build Python services, improve testing automation, and mentor a distributed team. Requires proven Python, JavaScript, and CI/CD expertise (GitHub Actions, CircleCI). Remote-friendly across Europe with ...