{"id":3108171,"url":"https://alion.io/job/mozilla-corporation-senior-software-engineer-privacy-8","title":"Senior Software Engineer, Privacy","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":91,"open_postings":24,"ghost_share":0,"stale_share":0.333,"repost_share":0.042,"time_to_fill_p50_days":43,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Germany"],"countries":["DE"],"hiring_countries":["DE"],"hiring_countries_total":1,"salary":{"min":68000,"max":91000,"currency":"EUR","period":"year","gross":null,"usd_annual":102072},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"JavaScript","optional":false},{"name":"Rust","optional":false},{"name":"Python","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-10-22T19:07:59Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-27T10:30:43Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"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:\nAre you passionate about Privacy Protections and the Open Web? Do you want to ship software to a large user base? Do you want your contributions to have a positive impact on the world? Do you want to advance current browser architecture to make the web a safer place for users?\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 restricted. We are looking for a Senior Software Engineer to support the Privacy Team to advance the Firefox Web Platform.\nWhat you'll do:\nImplement Privacy-improving, anti-tracking and threat intelligence protection into the Firefox web browser to mitigate user tracking and phishing.\nImplement architectural improvements into Gecko, the browser engine underlying Firefox.\nBuild performant, low-latency, and maintainable C++, JavaScript and Rust code \nWork as part of a geographically distributed team in an asynchronous manner (mostly Europe and US-East).\nWhat you'll bring:\nBachelor's degree in computer science, engineering, or a related program; or equivalent work experience.\nAt least 4 years of experience with programming in C++ and Rust, with a strong background in memory safety, multi-threaded system architecture, or raw data stream manipulation.\nProven ability to onboard quickly, deliver and improve complex software projects.\nProven track record of independently scoping and landing complex features within tight release windows.\nExcellent written and verbal communication skills. You can validate your progress and decisions and communicate them clearly.\nBonus Points:\nYou have already contributed to the Mozilla mission and the codebase.\nExperience working within the browser space (Gecko, Chromium, WebKit) or web engine runtime abstractions.\nExperience or high interest in designing or leveraging ML pipelines to automate internal developer workflows.\nDeep understanding of web architecture, the privacy/security model of the web, and client-side data structures.\nKnowledge of basic statistical modeling.\nProficiency with Python and SQL.\nWhat you’ll get:\nGenerous performance-based bonus plans to all eligible employees - we share in our success as one team\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)\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: D\nReq ID: R3260\nHiring Ranges:\nRemote Germany\n€68.000—€91.000 EUR","description_format":"text","description_chars":5649,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Home office","Parental leave","Professional development"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["VPN & Proxy Services","Consumer & Utility Software"],"lifecycle":[{"event":"open","at":"2026-10-22T19:55:50Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":4,"expected_fill_days":43,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":102072,"is_top_pay":false},"html_url":"https://alion.io/job/mozilla-corporation-senior-software-engineer-privacy-8","json_url":"https://alion.io/job/mozilla-corporation-senior-software-engineer-privacy-8.json","meta":{"generated_at":"2026-10-27T13:21:27Z","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":1439,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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-senior-software-engineer-privacy-8"},{"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-senior-software-engineer-privacy-8"},{"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-senior-software-engineer-privacy-8"},{"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-senior-software-engineer-privacy-8\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmozilla-corporation-senior-software-engineer-privacy-8"}]}