{"id":2027218,"url":"https://alion.io/job/koncrete-cdi-developpeur-fullstack-hf","title":"[CDI] Développeur Fullstack H/F","company":{"id":3908731,"name":"Koncrete","domain":"koncrete.fr","url":"https://alion.io/company/koncrete","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"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":null,"salary_estimate":{"min_usd":50000,"max_usd":90000,"period":"year","method":"role_country_seniority_unknown","sample_n":449},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Google Cloud Run","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prisma","optional":false},{"name":"React Query","optional":false},{"name":"React.js","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-28T07:41:12Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-18T06:53:26Z","board_verified":true,"closed_at":null,"days_open":20,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":20},"description":"Rejoins Koncrete, une startup Construtech en hypercroissance. En tant que Développeur Fullstack, tu seras au cœur de l'innovation produit et contribueras activement à l'évolution de notre plateforme. Tu travailleras sur le développement de nouvelles fonctionnalités, l'optimisation des performances et l'amélioration de l'architecture. Nous recherchons plusieurs profils avec une formation d'ingénieur ou un parcours équivalent, une maîtrise de notre stack technologique et un goût pour l'expérience utilisateur.\nMissions\nContribuer au développement de nouvelles fonctionnalités impactantes pour la plateforme, y compris des applications mobiles et des API.\nOptimiser les performances et la scalabilité de la plateforme pour accompagner la croissance rapide de l'entreprise.\nAméliorer l'architecture et les bonnes pratiques pour garantir une expérience utilisateur fluide, fiable et sécurisée.\nProfil recherché\n* **Profil recherché*** Formation d'ingénieur (grande école d'informatique ou généraliste) ou parcours équivalent. Tes réalisations comptent avant tout.\n* Maîtrise opérationnelle de notre stack : **React / TypeScript** (Vite, Tailwind, React Query), **Node.js / Express**, **PostgreSQL + Prisma**, **Redis** (traitements asynchrones), **Flutter**, API REST. Tu sais aussi bien descendre jusqu'au schéma de base que remonter jusqu'au pixel.\n* À l'aise sur l'industrialisation : Docker, CI/CD, Google Cloud (Cloud Run, Cloud SQL), architecture scalable et sécurisée.\n* Tu utilises déjà des agents de code (Claude Code, Cursor…) au quotidien, et tu restes responsable de ce qui part en production.\n* Un vrai goût pour l'expérience utilisateur et le design produit. Nos utilisateurs sont sur un chantier ou dans une cabine de camion, donc l'application doit être rapide et simple.\n* Sans oublier le plus important : une ambition entrepreneuriale. 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