Back End Developer

Title: Backend integration specialist

Duration: 6 months

Location: Strasbourg, France

Work Mode: Onsite

Languages: English

Specialist back-end developer responsible for high-throughput, scalable messaging and integration, with experience in both linear scaling and clustered deployments.

Core Responsibilities

• Design and implement scalable messaging solutions.
• Optimize system performance under increasing load.
• Support clustered deployments and high availability.
• Ensure reliable, secure message exchange across e-CODEX modules.

Required Technical Skills

Messaging & Scalability

• ActiveMQ Artemis
• Messaging patterns and enterprise integration patterns
• Linear and cluster-based scaling strategies
• Transaction management (JTA / Atomikos)

Backend & Performance

• Java (Amazon Corretto)
• Java NIO
• Spring Boot & Spring Integration
• Apache CXF

Security & Standards

• PKI, encryption, digital signatures
• Key stores
• ebMS, AS4, ASiC-S, ETSI-REM

Data & Storage

• Relational databases (MySQL, Oracle, PostgreSQL, MS SQL)
• MongoDB
• S3-based storage solutions

DevOps & Tooling

• GitHub Enterprise
• Jenkins CI/CD
• Docker
• JFrog / Nexus
• Monitoring and logging (Logback)