Senior Software Engineer (m/f/d) Java/Fullstack

As a Senior Software Engineer with a focus on Java, you join our development team for our product “Swing” and play a key role in evolving and stabilizing a business-critical, established system.

“Swing” combines mature on-premise components with modern integrations and forward-looking roadmap initiatives. In this role, you work hands‑on on Java-based backend components, drive technical improvements, and ensure long-term stability, performance, and maintainability.

You move confidently between maintaining existing systems and shaping future developments, contributing your expertise to improve architecture, code quality, and engineering practices.

Your Responsibilities

• You develop and maintain Java-based backend components within the “Swing” product.
• You work on integrations and interfaces within a mature software ecosystem.
• You analyze existing structures and drive refactoring and modernization efforts.
• You design robust, scalable solutions with performance and stability in mind.
• You collaborate closely with product management, support, and adjacent teams.
• You actively use modern development tools – including AI‑assisted tools – and critically evaluate their outputs.
• You ensure high code quality through testing, reviews, and clear standards.
• You contribute to improving architecture and engineering practices.

Your profile

• Several years of professional experience in Java backend development (e.g., Spring or comparable frameworks).
• Experience working in mature or legacy-heavy system environments.
• Knowledge of Kotlin is an advantage, particularly in hybrid or evolving codebases.
• Solid experience with SQL databases, data modeling, and performance optimization.
• Practical experience with container technologies (Docker) and ideally Kubernetes.
• Familiarity with cloud environments such as AWS is desirable.
• Strong understanding of API design and integration within complex system landscapes.
• High standards for code quality, testing, security, and documentation.
• Reflective and responsible use of AI-supported development tools.
• Very strong German language skills (minimum C1) as well as good English skills (minimum B2) are mandatory.

Why us?

• A responsible task with meaning: We build software to digitize the social care sector and thus enable our customers to focus on a better life for their clients by giving them more time for care & support
• A remote working time model to keep your everyday life flexible
• Exciting, challenging tasks in a dynamic, future‑oriented environment
• A culture of appreciation and a harmonious working atmosphere in a growing, international company with opportunities to get involved
• A creative working environment, flat hierarchies and short decision‑making processes