Job Description
Ingénieur Etudes & Développement Fullstack (F/H)

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. 

The opportunity

Magellan transforms customer relations with generative AI.

Multi-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.

 In 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.

Day-to-day responsibilities

  • You contribute to the full development and maintenance lifecycle of our Agentic Platform, actively participating in project delivery phases.
  • You specify, design, and develop APIs and Web services, while writing and maintaining robust unit and functional tests.
  • You identify, challenge, and analyze both functional and technical requirements to deliver value-driven solutions.
  • You 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.
  • You apply engineering best practices: code reviews, merge requests, automated testing, and continuous integration (GitLab CI).
  • You 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.
  • You drive continuous improvement of our processes through an SRE-oriented approach, industrializing and scaling the solution.

Who are we looking for

We 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:

  • You have a global vision and end-to-end technical understanding of an IT service: application, underlying infrastructure, and related dependencies.
  • You have solid knowledge of Cloud computing and a strong sensitivity to DevOps and FinOps practices.
  • You have hands-on experience with Agentic technologies, prompt engineering, or harness engineering.
  • You demonstrate initiative, proactivity, rigor, and autonomy within your area of responsibility.
  • You are curious and value teamwork and customer service.
  • You are motivated and passionate about the Agentic revolution.
  • You thrive in a diverse and challenging technical environment.
  • You are fluent in spoken and written English.

Perks & Benefits

Vous bénéficierez d’un large panel d’avantages, notamment :

  • Primes annuelles (fin d'année, vacances, participation et intéressement)
  • 32 jours de congés payés
  • Prise en charge transport en commun à hauteur de 50%
  • Comité d’entreprise très actif (Soirées, Voyages, Subventions culture et loisirs …) 
  • Participer à des évènements sportifs (Corporate Games, courses, …) 
  • Accord de télétravail 
  • Restaurant d'entreprise subventionné 
  • Mutuelle et prévoyance 

VISION IN ACTION 
We 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.

Information at a Glance
Request ID:  304268
Posting Start Date:  6/17/26
Job Area:  Technology
Work Site:  Hybrid
Contract Type:  Permanent
Job Location:  France - Noyelles Les Seclin, France - Lyon