Backend Developer; m​/f​/d

Ekkiden ist eine in 2019 gegründete internationale Beratungsgruppe: sie vereint ein Ökosystem leidenschaftlicher und engagierter Beraterinnen und Berater, die Transformationsprojekte in den Bereichen Organisation, Operations und Technologie durchführen, insbesondere in IT/Digital, Industrie/F&E sowie Nachhaltigkeit, für Großunternehmen und KMU in Frankreich, der Schweiz, Spanien und Deutschland.

As a Java Backend Developer, you design, implement, and maintain scalable backend services and APIs based on Java and Spring Boot, contributing to the stability and further development of products. You work closely with frontend, Dev Ops, and product teams to ensure seamless integration within our overall system architecture.

• Design, development, and maintenance of backend services and RESTful APIs using Java and Spring Boot.
• Implementation of new features and enhancement of existing functionality in a modular or microservice‑oriented architecture.
• Integration and modelling of relational databases (e.g. Postgre
  
  SQL, MySQL) and, ideally, No
  
  SQL databases (e.g. Mongo
  
  DB, Redis).
• Ensuring code quality through code reviews, unit and integration tests (e.g. JUnit).
• Performance optimisation, monitoring, and troubleshooting of existing backend services.
• Collaboration with frontend engineers and Product Owners on API design and contract alignment.

• Several years of experience in backend development with at least one common programming language, e.g. Java (e.g. with Spring/Spring Boot), or Node.js/Type Script.
• Solid experience in designing and implementing RESTful APIs.
• Hands‑on experience with relational databases (e.g. Postgre
  
  SQL, MySQL, SQL Server).
• Basic understanding of CI/CD pipelines and container technologies (e.g. Docker, optionally Kubernetes).
• Experience with test automation (unit tests, integration tests) and test frameworks relevant to your tech stack.
• Team‑oriented mindset, willingness to participate in code reviews, and a strong focus on code quality.
• Knowledge of backend security best practices (authentication/authorisation, e.g. JWT/OAuth2, and secure API design) is a plus.
• Fluency in English (C1); other languages are a plus.