{"id":2026505,"url":"https://alion.io/job/licornesociety-senior-backend-developer-node-js-typescript-healthtech","title":"Senior Backend Developer (Node.js / TypeScript) — Healthtech","company":{"id":3908658,"name":"Licorne Society","domain":"licornesociety.com","url":"https://alion.io/company/licornesociety","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"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":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":65000,"max":75000,"currency":"EUR","period":"year","gross":null,"usd_annual":84395},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Node JS","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-18T15:43:44Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-13T20:40:49Z","board_verified":true,"closed_at":null,"days_open":25,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":25},"description":"Rejoignez un acteur majeur de la biologie médicale en France en tant que Senior Backend Developer. Vous serez responsable de la conception d'API performantes en Node.js/TypeScript et de l'internalisation des bonnes pratiques de développement. Vous travaillerez au sein d'une équipe produit en pleine croissance et bénéficierez d'un package attractif avec la possibilité de télétravail.\nMissions\nConcevoir des API solides et performantes en Node.js / TypeScript pour absorber le trafic.\nStructurer les bonnes pratiques pour remplacer progressivement les prestations externes par une équipe interne pérenne.\nParticiper activement au développement et à l'amélioration continue du produit phare gérant 110 000 connexions quotidiennes.\nProfil recherché\nSolide expérience Backend en JS/TS avec maîtrise de Node.js (Express recommandé).\nEsprit pragmatique, orienté solution et qualité de code.\nAnglais courant impératif\nConditions\nPackage : 65 000 € - 75 000 € fixe + 5 % de variable.\nLocalisation : Saint-Ouen (2 à 3 jours de télétravail/semaine).","description_format":"text","description_chars":1041,"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":"French","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Health Care"],"lifecycle":[{"event":"open","at":"2026-10-07T13:29:32Z"}],"visa":[],"liveness":{"score":41,"band":"fade","label":"Fading","p_open":1,"p_active":0.456,"p_room":0.9,"age_days":24,"expected_fill_days":61,"reasons":["conf:2","agency","velocity","win:mid"],"computed_at":"2026-10-13T05:45:00Z"},"pay":{"stated_usd_annual":84395,"is_top_pay":false},"html_url":"https://alion.io/job/licornesociety-senior-backend-developer-node-js-typescript-healthtech","json_url":"https://alion.io/job/licornesociety-senior-backend-developer-node-js-typescript-healthtech.json","meta":{"generated_at":"2026-10-13T21:21:27Z","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":32753,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":3908658},"rest":"https://alion.io/mcp/rest/get_company?id=3908658"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flicornesociety-senior-backend-developer-node-js-typescript-healthtech"},{"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%2Flicornesociety-senior-backend-developer-node-js-typescript-healthtech"},{"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%2Flicornesociety-senior-backend-developer-node-js-typescript-healthtech"},{"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/licornesociety-senior-backend-developer-node-js-typescript-healthtech\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flicornesociety-senior-backend-developer-node-js-typescript-healthtech"}]}