Java Developer Wanted - Freelance

Project overview

For a long-term integration and software development environment, we are looking for an experienced Java developer (m/f/d) with a focus on interface development.

The focus is on the development and implementation of integration solutions between specialist applications, form systems, and other connected systems.

The focus is on the development of Enterprise Application Integration (EAI) interfaces using modern Java technologies and the integration of complex business processes in the tax environment.

Framework Data:

• Start: immediately
• Duration: until 31.12.2027
• Volume: 180 PT (30 PT in 2026, 150 PT in 2027)
• Location: Munich
• Utilization: approx. 75%
• Contract type: Service contract
• Hourly rate: 65,-EUR
• 95% Remote

Responsibilities

• Development and implementation of EAI interfaces between form server and specialist applications
• Implementation of specialist business logic in the tax environment
• Configuration of EAI interfaces between specialist applications and electronic document management system
• Configuration of EAI interfaces between specialist applications and SAP PSCD
• Optional connection of an input management system to existing specialist applications
• Participation in the modernization and further development of PSCD interfaces
• Independent coordination of technical and functional implementation details with relevant interface partners
• Analysis, implementation, and documentation of integration requirements
• Support for deployment and operating processes in containerized environments

Requirements

Desirable:

If this sounds like a good fit, I look forward to your feedback - feel free to also contact d.schwandner a sthree.com

• Several years of experience in Java development
• Several years of experience with Spring Boot
• Several years of experience with Apache Camel
• Several years of experience in developing interfaces and integration solutions
• Very good knowledge of Maven
• Several years of experience with OpenShift and/or Kubernetes
• Confident use of Git and GitLab
• Experience with IntelliJ IDEA and/or Visual Studio Code
• Experience in agile project methods according to Scrum
• Independent way of working and strong communication skills
• Experience in coordination with technical and functional contact persons
• Experience in the public or municipal sector
• Knowledge in the SAP PSCD environment
• Experience with tax or specialist applications
• Experience with electronic document management systems
• Knowledge in the field of Enterprise Application Integration (EAI)

Project details

• Start: ab sofort
• Remote: hybrid
• Location: München, Deutschland, DE
• Rate: 65-65 EUR/h
• Languages: German