{"id":763827,"url":"https://alion.io/job/mullvad-senior-developer-to-relay-software-team","title":"Senior Developer to Relay Software Team","company":{"id":680618,"name":"Mullvad VPN","domain":"mullvad.careers","url":"https://alion.io/company/mullvad","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Gothenburg, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":54000,"max_usd":161000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":7270},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"Linux","optional":false},{"name":"Rust","optional":false},{"name":"VPN","optional":true}],"status":"live","first_seen_at":"2026-07-09T11:11:29Z","employer_posted_date":"2026-07-09","last_verified_at":"2026-10-22T16:30:25Z","board_verified":true,"closed_at":null,"days_open":105,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":104},"description":"About Us\nMullvad VPN is a Swedish VPN company dedicated to fighting mass surveillance and censorship. We do this primarily through our VPN service and our privacy-focused web browser. Over the years, we have been pioneers when it comes to VPN technology and we intend to remain trailblazers. Everything we do is built with our users’ security and privacy first - with the ambition of making mass surveillance and censorship impractical.\nThe Job\nWe're looking for a Senior Developer to join our Relay Software Team at Mullvad. This team is responsible for all custom software solutions used on our VPN relays.\nYou'll play a key role in advancing server support for technologies such as Quantum-secure tunnels, traffic-analysis protection and protocol obfuscation.\nWho Are You\nYou're someone who enjoys working in a team, contributes ideas proactively, and has a strong interest in security, networks and low-level software development.\nYou value quality, maintainability, and thoughtful software design. You are curious and eager to learn, and you understand the importance of digital privacy.\nResponsibilities\nWork on new and exciting technologies and greenfield projects.\n\nUsing Go, design and implement robust server software for running on Linux.\n\nAuthor clean solutions that balance performance and resource usage.\n\nPerform measurements, testing and troubleshooting.\n\nCoordinate with stakeholders and developers in other departments.\n\nQualifications\nExcellent written and spoken English and Swedish.\n\nHighly developed understanding of software design and all aspects of software implementation.\n\nExperience with building server software.\n\nExcellent understanding of networking fundamentals.\n\nStrong knowledge in at least one of C/Go/Rust.\n\nWhy Mullvad?\nWe value quality over quantity and believe in good solutions rather than quick fixes. Our apps are open source, our teams are curious and collaborative, and we care deeply about removing bloat rather than adding it.\nWe are a bunch of diversified peeps: from vegans to marathon runners, audiophiles to farmers and coffee brewers. So, what unites us? Our commitment to living and breathing our mission, to make mass surveillance and censorship impractical. \nIf you want to build products that make an impact, enjoy generous benefits, and work for a purpose you can stand behind, welcome to Mullvad.\nAdditional Information\nLocation: Gothenburg, Sweden\nStart: As soon as possible\nJob Hours: Full-time, hybrid 60% on-site position\nThis is an ongoing recruitment process and we aim to fill the position as soon as possible. Please note that due to the holiday season, there may be some delays in our response times. We appriciate your patience and will get back to you as soon as possible.\nAs part of our hiring process, we conduct a background check to ensure a safe and secure work environment.","description_format":"text","description_chars":2847,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Sweden","iso":"SE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-11T19:20:41Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.365,"p_room":0.28,"age_days":104,"expected_fill_days":27,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/mullvad-senior-developer-to-relay-software-team","json_url":"https://alion.io/job/mullvad-senior-developer-to-relay-software-team.json","meta":{"generated_at":"2026-10-22T19:18:41Z","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":2505,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":680618},"rest":"https://alion.io/mcp/rest/get_company?id=680618"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmullvad-senior-developer-to-relay-software-team"},{"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%2Fmullvad-senior-developer-to-relay-software-team"},{"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%2Fmullvad-senior-developer-to-relay-software-team"},{"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/mullvad-senior-developer-to-relay-software-team\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmullvad-senior-developer-to-relay-software-team"}]}