{"id":3719737,"url":"https://alion.io/job/mozilla-corporation-staff-software-engineer-firefox-enterprise","title":"Staff Software Engineer, Firefox Enterprise","company":{"id":1740,"name":"Mozilla Corporation","domain":"mozilla.org","url":"https://alion.io/company/mozilla","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":89,"open_postings":25,"ghost_share":0.04,"stale_share":0.32,"repost_share":0.04,"time_to_fill_p50_days":43,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["France"],"countries":["FR"],"hiring_countries":["FR"],"hiring_countries_total":1,"salary":{"min":65000,"max":87000,"currency":"EUR","period":"year","gross":null,"usd_annual":97419},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Rust","optional":false},{"name":"SQL","optional":false},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-03T21:23:00Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-07T01:40:13Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Why Mozilla?\nMozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission - to make the internet better for people. \nThe Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders - only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. \nAbout this team and role:\nThe Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well! The Enterprise team is a cross-disciplinary team in charge of improving and maintaining Firefox support for large Enterprise deployments. As part of the team, you will be responsible for all things related to services and infrastructure for our Enterprise products.\nA Staff Software Engineer is the next level up from a Senior Software Engineer. At Mozilla this role can vary, but typically a staff engineer supports an engineering team, providing technical leadership, building cross-team relationships, and helping the team deliver on their objectives.\nWhat You'll Do:\nImprove the ease of use and security of Firefox in large deployments by developing better administration and monitoring tools.\nImprove Firefox functionality by better integration with remote services.\nAssess what work supports the team and product roadmap and make insightful recommendations in regards to priorities.\nWork with a geographically-distributed development team.\nWhat You’ll Bring:\n8+ years of professional experience in software development.\nExperience developing robust services according to modern best practices.\nStrong software engineering fundamentals: modularity, abstraction, data structures, and algorithms.\nProficiency in Rust and JavaScript.\nProven understanding of database systems (SQL and/or non-relational databases).\nYou are an excellent communicator and have participated effectively on a distributed team.\nYou’re pragmatic about how to move things forward in specific timeframes including trade-offs and safeguards when implementing new functionality.\nCuriosity and interest in learning new things.\nCommitment to our values:\nWelcoming differences\nBeing relationship-minded\nPracticing responsible participation\nHaving grit\nBonus Points\nFront-end development experience.\nExperience with kubernetes.\nExperience with OIDC/OAuth2.\nYou have previously successfully contributed to an open source project.\nWhat you’ll get:\nGenerous performance-based bonus plans to all eligible employees - we share in our success as one team\nRich medical, dental, and vision coverage\nGenerous retirement contributions with 100% immediate vesting (regardless of whether you contribute)\nQuarterly all-company wellness days where everyone takes a pause together\nCountry specific holidays plus a day off for your birthday\nOne-time home office stipend\nAnnual professional development budget\nQuarterly well-being stipend\nConsiderable paid parental leave\nEmployee referral bonus program\nOther benefits (life/AD&D, disability, EAP, etc. - varies by country)\nWe value a variety of voices within our team and at Mozilla. You don't need to check every box on this list to apply.\nAbout Mozilla \nMozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.\nCommitment to diversity, equity, inclusion, and belonging\nMozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions.\nWe will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at  to request accommodation.\nWe are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.\nGroup: C\nReq ID: R3218\nHiring Ranges:\nRemote France\n€65.000—€87.000 EUR","description_format":"text","description_chars":5865,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Home office","Parental leave","Professional development"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["VPN & Proxy Services","Consumer & Utility Software"],"lifecycle":[{"event":"open","at":"2026-11-04T02:18:21Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":43,"reasons":["conf:2","velocity","win:early"],"computed_at":"2026-11-06T05:58:05Z"},"pay":{"stated_usd_annual":97419,"is_top_pay":false},"html_url":"https://alion.io/job/mozilla-corporation-staff-software-engineer-firefox-enterprise","json_url":"https://alion.io/job/mozilla-corporation-staff-software-engineer-firefox-enterprise.json","meta":{"generated_at":"2026-11-07T01:45:17Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":4273,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1740},"rest":"https://alion.io/mcp/rest/get_company?id=1740"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmozilla-corporation-staff-software-engineer-firefox-enterprise"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmozilla-corporation-staff-software-engineer-firefox-enterprise"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmozilla-corporation-staff-software-engineer-firefox-enterprise"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mozilla-corporation-staff-software-engineer-firefox-enterprise\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmozilla-corporation-staff-software-engineer-firefox-enterprise"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3719737}},{"tool":"search_jobs","arguments":{"company":"mozilla.org","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3719737},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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