Enterprise Integration Back-end Developer, Strasbourg (On...

Enterprise Integration Back-end Developer, Strasbourg (On Site) – EU Institution

Job role: Back-end Developer (Enterprise Integration).

Language: English (C1)(Mandatory) .

Location: Strasbourg (On Site).

DESCRIPTION:

As a Back ‑ End Developer (Enterprise Integration), you will design, build, and maintain core services that enable secure, standards ‑ compliant interoperability across the e ‑ CODEX platform. You ’ ll work primarily in enterprise Java (Spring ecosystem), integrating with SOAP/REST APIs, multiple databases, and trust services to support cross ‑ border justice workflows. This role blends hands ‑ on development with systems integration, ensuring reliability, performance, and compliance with European interoperability and security standards.

Responsabilities:

· Implement and maintain Spring-based services.

· Design and consume SOAP and REST APIs.

· Work with multiple relational and non-relational databases.

· Implement security, cryptography, and trust services.

· Support interoperability standards used in European justice systems.

IT skills:

Core Back‑End & Frameworks

· Java (Amazon Corretto 8/11/17/21) and modern language features.

· Spring ecosystem: Spring Boot, Spring Data/JPA, JDBC; Hibernate/Jakarta Persistence.

· Apache CXF (SOAP & REST), Tomcat/Jakarta EE/J2EE runtime experience.

Security & Trust

· PKI fundamentals: certificates, key stores, mutual TLS.

· WS‑Security, message‑level security for SOAP services.

· Digital signatures and encryption (EU DSS tools / Digital Signature Service).

Interoperability & Messaging Standards

· ebMS, AS4, ASiC‑S, ETSI‑REM (design, configuration, troubleshooting).

Data & Storage

· Proficiency with relational databases (MySQL, MariaDB, PostgreSQL, Oracle, MS SQL); H2 for testing.

· Experience with MongoDB and S3 for file/artifact storage and processing.

· Schema design, query optimization, and migration tooling (Liquibase).

DevOps & Tooling

· Build/packaging: Maven or Gradle.

· CI/CD: Jenkins; artifact repos (e.g., JFrog/Nexus).

· Docker for containerized services; logging via Logback.

· Testing: JUnit 4/5, Mockito; documentation: Javadoc, AsciiDoc/Asciidoctor.

· Version control: Git/GitHub Enterprise.

Language:

· English (C1).

Location:

· Strasbourg (On Site).

Rate:

·540-560€/day.