{"id":3284737,"url":"https://alion.io/job/octopus-group-developpeur-back-end-node-js-api-rest-tests-hf","title":"Développeur Back-End Node.js – API REST / Tests (H/F)","company":{"id":3908444,"name":"Octopus Group","domain":"octopus-group.fr","url":"https://alion.io/company/octopus-8","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"freelance","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":null,"salary_estimate":{"min_usd":49000,"max_usd":88000,"period":"year","method":"role_country_seniority_unknown","sample_n":508},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Bash","optional":false},{"name":"Confluence","optional":false},{"name":"Docker","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Fastify","optional":false},{"name":"Git","optional":false},{"name":"GitLab","optional":false},{"name":"JavaScript","optional":false},{"name":"Jest","optional":false},{"name":"Linux","optional":false},{"name":"MariaDB","optional":false},{"name":"Mocha","optional":false},{"name":"MySQL","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"npm","optional":false},{"name":"PM2","optional":false},{"name":"Postman","optional":false},{"name":"Prisma","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Swagger","optional":false},{"name":"TypeORM","optional":false},{"name":"WebSockets","optional":false}],"status":"closed","first_seen_at":"2026-10-26T15:54:09Z","employer_posted_date":null,"last_verified_at":"2026-11-05T23:56:30Z","board_verified":false,"closed_at":"2026-11-05T23:56:30Z","days_open":10,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":10},"description":"Octopus Group recherche un Développeur Back-End Node.js expérimenté pour une mission auprès d’un grand acteur des médias. Vous construirez des services backend robustes et des API sécurisées, en collaboration avec les équipes front-end web/mobile, Produit, Design et Exploitation.\nVos missions :\n• Concevoir et développer des backends en JavaScript ES6+ sur Node.js 22 ou supérieur.\n• Construire, documenter et sécuriser des API REST JSON.\n• Mettre en œuvre des tests automatisés et suivre la couverture de code.\n• Participer aux workflows Git/GitLab et à l’industrialisation des développements.\n• Améliorer la fiabilité, la maintenabilité et les performances des services.\n• Documenter les choix techniques et expliquer les sujets complexes aux interlocuteurs produit.\n• Contribuer aux rituels et à l’amélioration continue Agile.\nProfil recherché\n5 ans d’expérience significative attendus. Expertise Node.js récent (22+), JavaScript ES6+ et au moins un framework parmi NestJS, Express, Fastify ou Koa. Maîtrise API REST, JSON/YAML, tests Jest ou Mocha/Chai/Sinon, couverture Istanbul/NYC, Bash Linux/Mac, NPM/Nodemon/PM2 et Git/GitLab. Lecture de documentation technique en anglais et pratique Agile requises. Appréciés : MySQL/MariaDB, MongoDB/Redis, Prisma/TypeORM, Elasticsearch, Docker/Compose, Worker Threads, WebSockets/SSE, Pub/Sub, Faye, OAuth2/JWT/SSO, HTTP/CORS, Cucumber/Gherkin, Swagger/Postman/curl, Markdown/Confluence et HTML5/CSS3.","description_format":"text","description_chars":1448,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-10-26T17:56:00Z"},{"event":"close","at":"2026-11-05T23:56:30Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/octopus-group-developpeur-back-end-node-js-api-rest-tests-hf","json_url":"https://alion.io/job/octopus-group-developpeur-back-end-node-js-api-rest-tests-hf.json","meta":{"generated_at":"2026-11-06T08:57:54Z","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":16109,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":3908444},"rest":"https://alion.io/mcp/rest/get_company?id=3908444"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Foctopus-group-developpeur-back-end-node-js-api-rest-tests-hf"},{"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%2Foctopus-group-developpeur-back-end-node-js-api-rest-tests-hf"},{"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%2Foctopus-group-developpeur-back-end-node-js-api-rest-tests-hf"},{"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/octopus-group-developpeur-back-end-node-js-api-rest-tests-hf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Foctopus-group-developpeur-back-end-node-js-api-rest-tests-hf"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3284737}},{"tool":"search_jobs","arguments":{"company":"octopus-group.fr","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3284737},"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"}}