Senior Java Fullstack Developer (m/w/d)

About This Opportunity

We are representing a client in the public sector IT services space who is seeking a Senior Java Fullstack Developer to join their team in Kaarst, Germany. This is an exciting opportunity to contribute to a large-scale digital transformation project that serves millions of users across the country. You'll be working on critical systems that orchestrate business processes across multiple specialized applications.

Our talent team at Get A Job.ai specializes in connecting experienced developers with meaningful projects in the public and enterprise sectors. We handle the entire recruitment process on your behalf and ensure your application reaches the right decision-makers.

Responsibilities

• Design, model, and implement business processes using BPMN and Camunda workflow engine, from requirements gathering through technical execution
• Develop and enhance high-performance backend components using Java 17/21 and Spring Boot to support complex, cross-system business workflows
• Design and implement interfaces including REST, SOAP, and messaging systems, coordinating with adjacent systems and development teams
• Create technical solution designs for cross-system process flows and integrate them into existing architectures
• Actively participate in transformation and processing of large data volumes within distributed system landscapes
• Collaborate with project stakeholders in regular exchange formats, primarily remote with occasional on-site visits (approximately once monthly in Kaarst)
• Create, execute, and document developer and integration tests to ensure software quality
• Maintain, support, and continuously optimize existing software components in production environments
• Produce technical documentation including interface specifications, installation guides, and operational handbooks

What We're Looking For

• Minimum 7 years of hands-on experience developing backend applications with Java, including strong knowledge of modern frameworks like Spring and Spring Boot
• Extensive experience developing distributed systems and microservice architectures, with confident use of interface technologies (REST, SOAP, messaging)
• Practical experience with BPMN and workflow engines, particularly Camunda, plus solid understanding of business process modeling
• Strong knowledge of database systems (Oracle, PostgreSQL) and ORM frameworks such as Hibernate/JPA
• Experience working with Linux systems and basic shell scripting capabilities
• Confident use of common development and collaboration tools (Git, Jenkins, Gradle, Jira, Confluence)
• Structured, solution-oriented working style with ability to clearly communicate complex technical concepts
• Experience in the public sector or within large, distributed IT system landscapes is advantageous
• Excellent German language skills, both written and spoken (C1 level required)

How We Work With You

When you apply through Get A Job.ai, one of our specialized recruiters will review your profile and conduct an initial screening conversation. We'll discuss your experience, career goals, and ensure this opportunity aligns with your interests. Once we confirm you're a strong match, we'll submit your application directly to our client with our recommendation.

Please apply exclusively through our platform at getajob.ai. Do not contact the client organization directly, as all applications must come through our official recruitment process to be considered.

Pay

Compensation details will be discussed during the screening process based on your experience level and qualifications.

Equal Employment Opportunity: Get A Job.ai is committed to inclusive hiring practices and welcomes applications from all qualified candidates regardless of background, identity, or circumstances.