Java Developer & Data Repository

Project overview

As a Lead Java / SQL Developer, you play a key role in the design, maintenance, and evolution of the proprietary MDM solution in close collaboration with the Product Owner and business teams.

Main missions:

-Application Development & Evolution: Design, develop, and deploy new features for the MDM and its management interfaces.

-Architecture & Data Modeling: Evolve the relational data model in consistency with the Business Object Model and volume/performance requirements.

-Integration & Data Flows: Develop and make reliable the feeding, synchronization, and exchange pipelines with external data sources and third-party applications.

-API & Web Services: Ensure high availability, security, and functional consistency of data exposure services.

-Deployment & Support: Actively participate in deployments, technical/functional acceptance testing phases, and level 3 support during critical incidents.

-Mentoring & Transfer: Ensure technical documentation, sharing of best practices, and occasional technical/functional training for key users.

Expected deliverables:

-Modeling & Databases: Schema evolution scripts (SQL), model mapping, and query optimization.

-Services & Integrations: Developments, unit/integration tests, and documentation of APIs/Web Services (REST/SOAP).

-Feeding & Synchronization Flows: Connectors and data reliability scripts.

-Quality & Support: Test/acceptance plans, technical documentation, and user guides.

Profile sought

-Experience: Minimum 5 years in backend development, ideally with initial experience in MDM architectures, large data repositories, or complex integration systems.

-Advanced mastery of Java and its ecosystem (Spring / Spring Boot or equivalent).

-Excellent mastery of SQL and relational database modeling (Oracle, PostgreSQL, etc.).

-Solid experience in designing and consuming APIs / Web Services (REST, SOAP, JSON, XML).

-Knowledge of batch processing mechanisms and asynchronous synchronization.

Work environment

We are looking for a Java/SQL & Data Repository Developer for a mission with one of our clients, a major player in the energy sector.

Within the department responsible for the professional client market (VSEs, SMEs, artisans, traders, liberal professions, and tertiary sector), you will join the team responsible for the centralized customer and prospect data repository (Master Data Management - MDM).

This strategic application foundation has the following missions:

-Collection, consolidation, and continuous improvement of data quality from internal and external sources.

-Secure exposure of this data (read/write) to ecosystem applications (enterprise CRM, online Customer Area, Electronic Document Management - EDM) via APIs and web services integrating strict business rules.

-Provision of a dedicated web interface for data consultation and administration according to business profiles and authorizations.

Project details

• Start: 09/11/2026
• Duration: 1 mois
• Remote: hybrid
• Location: La Garenne-Colombes, Île-de-France, FR
• Rate: 44-63 EUR/h
• Languages: French