Required skills
- Java
- Jakarta EE
- JPA
- Hibernate
- EJB
- JSF
- PrimeFaces
- Web Services
- Angular TypeScript
- HTML
- a11y
- Docker
- Kubernetes
- Microservices
- API-First
- REST APIs
- OpenAPI
- Swagger
- XML
- JSON
- Apache Camel
- Red Hat Fuse
- Quarkus
- Maven
- Git
- Jenkins
- SonarQube
- GitHub Actions
- Unit Testing
- Integration Testing
Languages: German
Job description
We are looking for a freelance Java Developer to connect the Elterngeld solution to the national One-Only-Technical-System. The role involves conception and implementation of technical connections, integration of interfaces, and ensuring compliance with technical and legal requirements.
Project overview
For one of our clients in the banking sector, we are currently looking for a freelance Java Developer.
Project:
Connection of the Elterngeld solution to the national One-Only-Technical-System
Responsibilities
- Conception and implementation of the technical connection to the NOOTS infrastructure
- Integration of corresponding interfaces into the online service and the specialist application
- Definition and implementation of the data structures to be provided
- Ensuring compliance with relevant legal, functional, and technical specifications
Requirements
Technology:
Framework Data:
If interested, we look forward to receiving your skill profile as a PDF, stating your hourly rate and availability. If it's not a good fit for you at the moment, feel free to make a recommendation.
- Experience with modern frontend technologies, especially Angular TypeScript, HTML, and knowledge of a11y
- Practical experience in cloud and container-based architectures (Docker, Kubernetes, Microservices, API-First)
- Confident handling of REST APIs, OpenAPI/Swagger, XML/JSON, and integration technologies such as Apache Camel, (ESB) Red Hat Fuse, and Quarkus
- Profound knowledge in handling build and DevOps tools (Maven, Git, Jenkins, SonarQube, GitHub Actions) and a well-coordinated test portfolio (unit, integration, and automated tests)
- Experience with Domain-Driven Design (DDD) and modern architectural principles
- Knowledge of relational databases, especially Oracle, PostgreSQL, Cloud SQL
- Routine in working in agile teams (Scrum/Kanban), including Clean Code, Code Reviews, and Pair Programming
- Handling of collaboration tools such as JIRA and Confluence.
- Ideally, experience with specialist applications in the area of social benefits or regulatory requirements in the environment of development banks
- Java/Jakarta EE including JPA/Hibernate ++ 3-5 yrs.
- EJB ++ 3-5 yrs.
- JSF/PrimeFaces ++ 3-5 yrs.
- Design and further development of web services + 1-3 yrs.
- Location: Remote / Karlsruhe
- Start: immediately
- Duration: 3 months
- Utilization: Full-time
- Remote share: predominantly remote
- Language skills: German
Project details
- Start: 2026-11
- Duration: 3 Monate
- Remote: hybrid
- Location: Karlsruhe, Deutschland, DE
- Languages: German
Indexed by 9am's meta-search. You are a job provider? Claim or manage this listing
Found on FreelancerMap DE