{"id":3250712,"url":"https://alion.io/job/ooak-data-lead-swe","title":"Lead SWE","company":{"id":2066,"name":"Ooak Data","domain":"ooakdata.com","url":"https://alion.io/company/ooak-data","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Work at a Startup","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":80000,"max":100000,"currency":"EUR","period":"year","gross":null,"usd_annual":111831},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Claude Code","optional":false},{"name":"Dagster","optional":false},{"name":"Digital Twin","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GCP","optional":false},{"name":"Jira","optional":false},{"name":"Notion","optional":false},{"name":"Python","optional":false},{"name":"Reinforcement Learning","optional":false},{"name":"Rust","optional":false},{"name":"Slack","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-10-25T21:14:38Z","employer_posted_date":"2026-10-25","last_verified_at":"2026-10-27T08:22:17Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"We're Ooak Data\nOoak Data turns company data into training data for AI agents.\nFrontier labs can train models to reason. They cannot train them to work: navigating a real company's Slack threads, half-finished Notion docs, contradictory Jira tickets, and permission boundaries. That requires real enterprise data, and you cannot synthesize it. You have to source it.\nWe plug into enterprise tools, anonymize everything into a structurally identical digital twin, and generate reinforcement-learning environments with expert-level tasks calibrated against frontier models.\nWe are a Y Combinator company with 8 figures contracts signed with frontier AI labs, and we are scaling delivery aggressively over the next months.\nOur values\nTrust, the foundation of every relationship, internal and external. We extend it by default and value the ownership that comes with it.\n\nAmbition, we commit, we move fast, with tenacity and efficiency.\n\nCollective, team first, low ego.\n\nKindness, at the heart of every interaction.\n\nThe offer\nLocation: Paris (city center), on-site with 1 to 2 days WFH\nStart: as soon as you are available\nContract: full-time (CDI)\nCompensation: €80k to €100k + bonus + equity (BSPCE)\nYour missions\nAs Lead Software Engineer, you lead one of our product squads end to end: ingestion, anonymization & processing, or QA & delivery. You report to Thomas (CTO & co-founder).\nOwn your squad's delivery. Your squad ships a core part of the pipeline that turns full company data ecosystems into digital twins for the labs. Volumes, quality and reliability are yours.\n\nStay hands-on. You code, take on hard problems yourself and review a large share of the code. You lead by example: this is not an organization and reporting role.\n\nManage your squad. You lead 4 to 6 engineers, some of them very senior. You quickly take over their day-to-day management from Thomas: priorities, 1:1s, feedback, career growth and reviews. You also hire and onboard the next ones.\n\nShape the technical direction with Thomas and the other leads: stack, infrastructure, data architecture, code quality, testing, observability, and AI-native development practices.\n\nWork hand in hand with product and ops: our delivery and run are embedded in the build, priorities move fast.\n\nConcretely, over your first 12 months:\nShip at scale: the pipeline has to absorb hundreds of company data ecosystems over the next year, reliably and with auditable quality.\n\nBuild the squad with the founders: interviewing, closing, onboarding.\n\nStructure the way your squad works: rituals, documentation, on-call, and how it collaborates with the other squads.\n\nWho we're looking for\n10+ years in software engineering, including 3+ years managing engineers (teams of 4-5 people or more, including senior profiles).\n\nStrong back-end depth on data-intensive systems: Python or Rust in production, SQL, distributed pipelines, cloud infrastructure (GCP or equivalent).\n\nAI-native way of building: you have been building with coding agents every day for months, and you know how to make a team ship faster and safer with them. At Ooak, every engineer runs several Claude Code sessions in parallel.\n\nA track record of shipping in a demanding, fast-moving environment: start-up or scale-up.\nHigh bar on quality and security: we handle our partners' most sensitive data.\n\nTeam first, low ego: you lead by clarity and trust, and you make the people around you better.\n\nFluent English, mandatory (working language with our clients and the labs).\n\nThe extras that make the difference\nExperience with data engineering at scale: ETL/ELT, orchestration (Airflow, Dagster, etc), warehouses and lakes.\nExperience with data anonymization, privacy, or security-sensitive systems.\nStrong interest in AI, RL environments, and how frontier models are trained.\nTypeScript on the side, for the platform.\nWhy join us\nEntrepreneurial adventure: founding impact, live the early days of an ambitious company at the front line of the AI revolution.\n\nBacked by Y Combinator, join just as we accelerate.\n\nOffices in central Paris.\nPerks: Alan health insurance (mutuelle), 50% Navigo covered.\n\nRecruitment process\nWe move fast.\nA 30 min intro call with Grégoire (co-founder)\nA 60 min technical deep dive with Thomas (CTO & co-founder): your track record, technical judgment, how you lead\nA technical case, presented to Thomas and a tech member\nA final fit interview with 2 founders\nReference calls","description_format":"text","description_chars":4430,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Equity","Health insurance"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Training Data & Annotation","AI Evaluation & Observability"],"lifecycle":[{"event":"open","at":"2026-10-25T21:14:38Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":26,"reasons":["conf:1","win:early"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":111831,"is_top_pay":false},"html_url":"https://alion.io/job/ooak-data-lead-swe","json_url":"https://alion.io/job/ooak-data-lead-swe.json","meta":{"generated_at":"2026-10-27T12:13:09Z","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":43,"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":2066},"rest":"https://alion.io/mcp/rest/get_company?id=2066"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fooak-data-lead-swe"},{"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%2Fooak-data-lead-swe"},{"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%2Fooak-data-lead-swe"},{"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/ooak-data-lead-swe\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fooak-data-lead-swe"}]}