{"id":1030893,"url":"https://alion.io/job/clickhouse-langfuse-senior-product-engineer","title":"Langfuse - Senior Product Engineer","company":{"id":3448,"name":"ClickHouse","domain":"clickhouse.com","url":"https://alion.io/company/clickhouse","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":80,"open_postings":51,"ghost_share":0,"stale_share":0.608,"repost_share":0,"time_to_fill_p50_days":65,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany","France","Italy","Netherlands","Spain","Portugal"],"countries":["DE","FR","IT","NL","ES","PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":90000,"max":160000,"currency":"EUR","period":"year","gross":null,"usd_annual":179702},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"ClickHouse","optional":false},{"name":"GitHub","optional":false},{"name":"Langfuse","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Next.js","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-18T13:28:27Z","employer_posted_date":"2026-09-18","last_verified_at":"2026-11-11T04:36:24Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":53},"description":"Why Product Engineering at Langfuse\nYour work will have an outsized impact.\nEverything you build is open source (MIT-licensed) and immediately visible. Langfuse has 35,000+ GitHub stars and our SDKs are downloaded more than a hundred million times per month. When you ship a new feature the community notices in GitHub issues, on X, and in our community channels.\nProduct engineers at Langfuse are the people who deliver new features end-to-end to our users. You own the product thinking from understanding the user problem to deciding what to build to shipping the solution.\nYou will also have direct exposure to how cutting-edge LLM applications are built. The users you serve are some of the best and most ambitious software engineers leveraging Langfuse to improve their applications. Deeply understanding the problems they solve will help you design the best possible product and along the way makes you an expert on LLM engineering yourself.\nYou will grow at Langfuse by\nOwn features end-to-end: from talking to users, to writing the spec, to shipping the code and docs, to writing the changelog post with your name on it. To give you a sense: recent features a single engineer owned include the Langfuse for Agents release (new trace views, agent graphs, semantic span labels), the TypeScript SDK v4 rewrite on OpenTelemetry, and managing dashboards via API/CLI/MCP.\n\nWork across the full stack: and we mean full. Our surface area is wide: React frontend, Next.js backend, ClickHouse analytics, Python and TypeScript SDKs, public docs, Terraform modules, and more. You'll touch whatever the feature needs. One week you might be writing a new ClickHouse query for cost analytics, the next you're designing an SDK API, the next you're building a new rust worker for faster data processing.\n\nTalk to users constantly: jump on calls, respond in community channels, and route support requests. At Langfuse, support is how we build conviction about what to build next. Our handbook says it best: support by engineers is a core value proposition.\n\nWrite public documentation about the features you own. At Langfuse, docs are product.\n\nShip publicly during Launch Weeks: we've run four Launch Weeks so far, dropping a new feature every day for a week. Engineers present the features they built to the community.\n\nWhat we’re looking for\nSomeone who has built features or even entire products from scratch end-to-end\n\nExperience building and shipping user-facing products end-to-end, ideally in TypeScript/React and with exposure to data-intensive backends\n\nSomeone who can manage projects themselves. You know how to develop strong conviction about what to build and how to ship it.\n\nTaste for great developer experience: you care about API design, UI details, and clear documentation\n\nInterest in open source software and genuine excitement about talking to developers about their problems\n\nThrives in a small, accountable team where your output is visible and matters\n\nCS or quantitative degree preferred\n\nBonus points:\nExperience with ClickHouse, analytics databases, or building complex data visualizations\n\nFormer founder or early startup experience\n\nContributions to popular open source projects\n\nML/AI background or familiarity with the LLM framework ecosystem\n\nNo candidate checks all boxes. If you feel you are a good fit for this role, please go ahead and apply.\nPerks\nFlexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 25 countries.\n\nHealthcare - Employer contributions towards your healthcare.\n\nEquity in the company - Every new team member who joins our company receives stock options.\n\nTime off - Flexible time off in the US, generous entitlement in other countries.\n\nA USD$500 Home office setup if you’re a remote employee.\n\nGlobal Gatherings - We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites.\n\nCulture - We All Shape It\nAs part of a rapidly scaling start-up, you will be instrumental in shaping our culture.\nAre you interested in finding out more about our culture? Learn more about our values here. Check out ourblog posts or follow us on LinkedIn to find out more about what’s happening at ClickHouse.\nEqual Opportunity & Privacy\nClickHouse provides equal employment opportunities to all employees and applicants and prohibits discrimination and harassment of any type based on factors such as race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.\nPlease see here for our Privacy Statement.","description_format":"text","description_chars":4726,"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":[]},"benefits":["Equity","Flexible schedule","Flexible time off","Home office","Stock options"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"},{"name":"France","iso":"FR","kind":"country"},{"name":"Italy","iso":"IT","kind":"country"},{"name":"Netherlands","iso":"NL","kind":"country"},{"name":"Spain","iso":"ES","kind":"country"},{"name":"Portugal","iso":"PT","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Warehouses & Lakehouses","Databases & DBMS"],"lifecycle":[{"event":"open","at":"2026-09-18T13:57:56Z"}],"visa":[],"liveness":{"score":37,"band":"fade","label":"Fading","p_open":1,"p_active":0.62,"p_room":0.6,"age_days":53,"expected_fill_days":65,"reasons":["conf:1","stale_co","velocity","win:late","crowd:brand"],"computed_at":"2026-11-11T05:49:22Z"},"pay":{"stated_usd_annual":179702,"is_top_pay":false},"html_url":"https://alion.io/job/clickhouse-langfuse-senior-product-engineer","json_url":"https://alion.io/job/clickhouse-langfuse-senior-product-engineer.json","meta":{"generated_at":"2026-11-11T07:45:36Z","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":11934,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":3448},"rest":"https://alion.io/mcp/rest/get_company?id=3448"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fclickhouse-langfuse-senior-product-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fclickhouse-langfuse-senior-product-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fclickhouse-langfuse-senior-product-engineer"},{"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/clickhouse-langfuse-senior-product-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fclickhouse-langfuse-senior-product-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1030893}},{"tool":"search_jobs","arguments":{"company":"clickhouse.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1030893},"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. Docs: https://alion.io/developers"}}