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NEXTON

Builds digital projects for large French firms

Artificial Intelligence Engineer

AI Application Engineering +1Posted on Nov 9
Full-timeÎle-de-France, FranceNo salary listed

About the Job

Requirements

  • At least approximately four years of software engineering experience, ideally including one to two years specifically in artificial intelligence engineering.
  • Advanced proficiency in Python and AI development frameworks such as LangChain and LangGraph.
  • Strong expertise in designing retrieval-augmented generation architectures, working with vector databases, and creating autonomous agents.
  • Strong proficiency in FastAPI for developing APIs and practical experience with the data-oriented ReAct pattern.
  • Very good SQL skills and demonstrated interest in knowledge graphs.
  • Technical rigor, critical thinking, organization, and collaborative work in multidisciplinary teams.

Responsibilities

  • Audit existing artificial intelligence technology and provide strategic architecture recommendations.
  • Take over, consolidate, and improve prototypes developed by the team, transforming them into robust, maintainable production solutions.
  • Design and implement retrieval-augmented generation architectures backed by vector databases.
  • Develop autonomous agents that interact effectively within the data ecosystem.
  • Design and expose performant APIs with FastAPI to connect AI services.
  • Use the ReAct reasoning and orchestration framework to streamline decision-making and data use.
  • Implement knowledge graphs and optimize complex SQL queries for data access.
  • Apply software engineering best practices to AI, including code quality, testing, CI/CD, and technical documentation.

Desired Qualifications

  • One to two years of experience specifically in artificial intelligence engineering.

About the Company

NEXTON

Builds digital projects for large French firms

NEXTON plans and builds digital projects for large French companies and online businesses, combining digital strategy with software development and marketing. Its teams cover product management, user-experience design, agile delivery and data work, and build websites, mobile applications and customer communications. Clients pay for specialist consultants assigned to their teams or for projects delivered by NEXTON's own agency. The agency combines designers, developers and marketing specialists to handle projects from planning and interface design through development and delivery. Founded in Paris in 2011, NEXTON is headquartered there at 5-7 rue Saint-Fiacre and operates across France.

Company size
Not listed
Company stage
Not listed
Total funding
Not listed
Headquarters
Paris, France
Founded
2011

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