{"id":2054646,"url":"https://alion.io/job/worldline-ingenieur-etudes-et-developpement-fullstack-developer","title":"INGENIEUR ETUDES ET DEVELOPPEMENT-Fullstack Developer","company":{"id":52940,"name":"Worldline","domain":"worldline.com","url":"https://alion.io/company/worldline","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Lyon, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":47000,"max_usd":85000,"period":"year","method":"role_country_seniority_unknown","sample_n":508},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"FinOps","optional":false},{"name":"GCP","optional":false},{"name":"Multi-Agent Systems","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"RAG","optional":false},{"name":"Angular","optional":true},{"name":"CI/CD","optional":true},{"name":"Clean Architecture","optional":true},{"name":"Dependency Injection","optional":true},{"name":"Docker","optional":true},{"name":"GitLab CI","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true},{"name":"Kubernetes","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-07T23:12:34Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-26T20:32:48Z","board_verified":true,"closed_at":null,"days_open":19,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":19},"description":"Magellan is a Management Consulting and Technology Group. Our mission is to support SMEs, mid-caps, large corporations and public organizations throughout their strategic, technological and operational transformations.\nThe opportunity\nMulti-agent architectures are no longer science fiction: they already handle millions of customer interactions (voice, email, chat, social media), automatically processing simple cases and intelligently escalating complex ones to human advisors.\nIn this fast-moving environment, We are expanding our Agentic AI platform to fully integrate voice, chat, and orchestration capabilities into our CCaaS solution. The ambition is clear: build a truly unified, AI-native contact center that elevates both customer experience and agent productivity, while positioning us at the forefront of the next wave of customer engagement.\nDay-to-day responsibilities\nYou contribute to the full development and maintenance lifecycle of our Agentic Platform, actively participating in project delivery phases.\nYou specify, design, and develop APIs and Web services, while writing and maintaining robust unit and functional tests.\nYou identify, challenge, and analyze both functional and technical requirements to deliver value-driven solutions.\nYou work on a microservices-based architecture deployed on our Sovereign Cloud or on the Google Cloud Platform, leveraging a modern and diverse tech stack - Java/ Kotlin, Angular, Spring, Docker, Kubernetes, and more - within a cutting-edge engineering environment built on Clean Architecture, design patterns, and dependency injection.\nYou apply engineering best practices: code reviews, merge requests, automated testing, and continuous integration (GitLab CI).\nYou build and extend the harness of our AI Agent, enhancing state-of-the-art LLMs with custom capabilities (connectors, RAG) to deliver high-quality support powered by internal knowledge base.\nYou drive continuous improvement of our processes through an SRE-oriented approach, industrializing and scaling the solution.\nWho are we looking for\nWe are looking for people capable of driving positive change, moving forward, and showing the way - passionate individuals with a positive attitude and a thirst to learn and progress. In practice, this means:\nYou have a global vision and end-to-end technical understanding of an IT service: application, underlying infrastructure, and related dependencies.\nYou have solid knowledge of Cloud computing and a strong sensitivity to DevOps and FinOps practices.\nYou have hands-on experience with Agentic technologies, prompt engineering, or harness engineering.\nYou demonstrate initiative, proactivity, rigor, and autonomy within your area of responsibility.\nYou are curious and value teamwork and customer service.\nYou are motivated and passionate about the Agentic revolution.\nYou thrive in a diverse and challenging technical environment.\nYou are fluent in spoken and written English.\nPerks & Benefits\nVous bénéficierez d’un large panel d’avantages, notamment :\nPrimes annuelles (fin d'année, vacances, participation et intéressement)\n32 jours de congés payés \nPrise en charge transport en commun à hauteur de 50%\nComité d’entreprise très actif (Soirées, Voyages, Subventions culture et loisirs …) \nParticiper à des évènements sportifs (Corporate Games, courses, …) \nAccord de télétravail \nRestaurant d'entreprise subventionné \nMutuelle et prévoyance \nVISION IN ACTION:\nWe help companies and public organizations to: Define the operating, business and technological models that will respond to the changes in their sector and activity in the long term Implement new business and IT organisations & their associated processes Deploy or create the technologies best suited to their new strategic and organizational plan, Secure and operate their applications and systems over time.","description_format":"text","description_chars":3844,"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":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-07T23:12:34Z"}],"visa":[],"liveness":{"score":14,"band":"cold","label":"Long shot","p_open":1,"p_active":0.393,"p_room":0.35,"age_days":18,"expected_fill_days":8,"reasons":["conf:2","velocity","win:tail","comp:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/worldline-ingenieur-etudes-et-developpement-fullstack-developer","json_url":"https://alion.io/job/worldline-ingenieur-etudes-et-developpement-fullstack-developer.json","meta":{"generated_at":"2026-10-27T00:39:05Z","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":768,"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":52940},"rest":"https://alion.io/mcp/rest/get_company?id=52940"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fworldline-ingenieur-etudes-et-developpement-fullstack-developer"},{"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%2Fworldline-ingenieur-etudes-et-developpement-fullstack-developer"},{"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%2Fworldline-ingenieur-etudes-et-developpement-fullstack-developer"},{"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/worldline-ingenieur-etudes-et-developpement-fullstack-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fworldline-ingenieur-etudes-et-developpement-fullstack-developer"}]}