{"id":3898932,"url":"https://alion.io/job/objectware-developpeur-front-end-react-typescript-hf","title":"Développeur Front-End React / TypeScript (H/F)","company":{"id":172908,"name":"Objectware","domain":"objectware.fr","url":"https://alion.io/company/objectware","size_band":"201-500","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":null,"employment_type":"freelance","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Lille, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache ECharts","optional":false},{"name":"Chart.js","optional":false},{"name":"CI/CD","optional":false},{"name":"D3.js","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GitLab CI","optional":false},{"name":"JavaScript","optional":false},{"name":"Jest","optional":false},{"name":"Material UI","optional":false},{"name":"Playwright","optional":false},{"name":"React Query","optional":false},{"name":"React.js","optional":false},{"name":"Recharts","optional":false},{"name":"Redux Toolkit","optional":false},{"name":"Rest API","optional":false},{"name":"State Management","optional":false},{"name":"styled-components","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Webpack","optional":false},{"name":"WebSockets","optional":false},{"name":"Zustand","optional":false},{"name":"Redux","optional":true}],"status":"live","first_seen_at":"2026-11-06T18:15:59Z","employer_posted_date":null,"last_verified_at":"2026-11-06T18:15:59Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Contexte de la mission : Nous recherchons un Senior Software Engineer Front-End spécialisé en React.js et TypeScript afin de participer à la conception et au développement d'une application stratégique de centralisation et d'exploitation de données réglementaires.\nVous interviendrez sur un projet innovant intégrant des fonctionnalités avancées de visualisation de données et des interactions avec des API d'intelligence artificielle.\n\nVos missions :Concevoir et structurer l'architecture Front-End de l'application en React.js et TypeScript.\n\nDévelopper des interfaces utilisateurs complexes et des composants UI sur mesure.\n\nConcevoir des tableaux de bord interactifs, graphiques avancés et fonctionnalités de cartographie.\n\nIntégrer des API d'intelligence artificielle et gérer des interactions asynchrones complexes (streaming, WebSockets).\n\nOptimiser les performances de l'application, notamment sur la manipulation de volumes importants de données.\n\nGarantir la qualité du code, l'accessibilité et l'expérience utilisateur.\n\nMettre en place et maintenir une stratégie de tests automatisés.\n\nRéaliser des revues de code et accompagner techniquement les développeurs plus juniors.\n\nEnvironnement technique :Front-End : React.js (Hooks, Context), TypeScript.\n\nState Management : Zustand, Redux Toolkit, React Query.\n\nData Visualization : D3.js, Recharts, Apache ECharts, Chart.js.\n\nStyling : Tailwind CSS, Styled Components, MUI.\n\nTests : Jest, React Testing Library, Cypress ou Playwright.\n\nOutils : Git, Webpack, Vite, Docker.\n\nCI/CD : GitHub Actions, GitLab CI.\n\nIntégration : API REST, WebSockets, streaming IA.\n\nProfil recherché\nProfil recherché :Minimum 5 à 7 ans d'expérience en développement Front-End.\n\nAu moins 3 ans d'expérience significative sur l'écosystème React.js.\n\nExcellente maîtrise de TypeScript et JavaScript.\n\nExpérience dans la conception d'applications manipulant des volumes importants de données.\n\nBonne connaissance des problématiques de performance et d'optimisation du rendu côté client.\n\nMaîtrise des bonnes pratiques de développement, tests automatisés et Clean Code.\n\nUne expérience en visualisation de données complexes et intégration d'API IA serait particulièrement appréciée.\n\nQualités attendues :Autonomie et esprit d'initiative.\n\nCapacité à proposer des solutions techniques pertinentes.\n\nExcellente communication et aptitude à travailler en équipe.\n\nCapacité à vulgariser des sujets techniques auprès d'interlocuteurs fonctionnels.","description_format":"text","description_chars":2474,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development","Data Engineering & Migration Services"],"lifecycle":[{"event":"open","at":"2026-11-06T23:57:00Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":54,"reasons":["seen:0","velocity","win:early"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/objectware-developpeur-front-end-react-typescript-hf","json_url":"https://alion.io/job/objectware-developpeur-front-end-react-typescript-hf.json","meta":{"generated_at":"2026-11-07T20:35:50Z","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":32801,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":172908},"rest":"https://alion.io/mcp/rest/get_company?id=172908"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fobjectware-developpeur-front-end-react-typescript-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%2Fobjectware-developpeur-front-end-react-typescript-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%2Fobjectware-developpeur-front-end-react-typescript-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/objectware-developpeur-front-end-react-typescript-hf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fobjectware-developpeur-front-end-react-typescript-hf"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3898932}},{"tool":"search_jobs","arguments":{"company":"objectware.fr","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3898932},"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"}}