Data engineer H/F

France | Sept. 3, 2026

Report as Closed

Company: Hays France

Country: France

Salary: $57,914 - $69,497

Type: Onsite

Employment: Full-time

Description: Your mission:

You design, deploy and operate the data and knowledge foundations of the AI ​​platform. Your work enables intelligent systems to:


* Understand complex customer contexts,
* Manipulate reliable and secure data,
* Execute business actions in a deterministic and traceable way.

You transform raw data into data products and knowledge graphs directly used in production by AI agents. You also contribute to the development of AI services consuming this data.

Main responsibilities:

* Design, develop and maintain data pipelines (batch, near real-time)
* Build and operate data workflows
* Model business domains in the form of knowledge graphs
* Synchronize source systems and graphs (CDC, events, scheduled jobs)
* Expose data and knowledge via API services
* Contribute to an architecture combining graphs, vector search and LLM
* Guarantee quality, observability, security and multi-tenant isolation

Required profile:
Required skills

* 5+ years of experience in Data Engineering in a production environment
* Excellent command of Python, SQL and Spark
* Experience with cloud and Databricks
* Expertise in pipelines (ETL, inset architectures)
* Experience with FastAPI or equivalent
* Ability to manage a system from end to end (design → deployment → monitoring)
* Knowledge of Linux, Docker, Kubernetes
* Very good command of Git and CI/CD
* Comfort in interacting with Data, AI and teams professions

Appreciated assets

* Experience with knowledge graphs (Neo4j, Neptune, ArangoDB.)
* Knowledge of Cypher, SPARQL
* Experience with AI systems based on LLM / RAG
* Knowledge of vector bases and semantic search
* Experience in a SaaS or multi-tenant environment

Apply here:

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