Working Student - Backend Development (Java)

Our Backend Engineers (Hybrid in Mannheim · 3 days/week on-site) build the foundation of the osapiens HUB - the cloud platform powering all our SaaS products. The team develops engines for seamless monitoring, real-time data processing, centralized integration, automated workflows, and dynamic app development. Simply put: they build the core technologies that enable global companies to turn compliance into efficiency and sustainable growth., * Develop backend features using modern Java

• Follow industry best practices by writing automated tests and documentation for your code
• Own features end-to-end: from implementation and testing to supporting the roll-out with clear release notes
• Option to work on the frontend as well (React), * A purpose-driven mission tackling complex sustainability challenges while working alongside global industry pioneers at a fast-growing unicorn company
• A dynamic, collaborative work environment where your ideas are valued and implemented
• Room for creativity and ownership through cross-functional teamwork and open communication
• Regular team events and outings
• A dynamic and collaborative team environment, offering both remote and in-office opportunities
• And of course - free drinks and snacks to keep you energized during your day

• Currently enrolled in a university program (computer science or related fields)
• Eagerness to grow with us long-term
• First experience in software development with object-oriented programming languages such as Java
• Preferably first experiences with backend development, ideally with Spring Boot
• Understanding of API Development and NoSQL databases are a plus
• Strong interest in building reliable, secure and scalable software
• Ability to work independently, learn quickly, and take full ownership of your tasks
• High attention to detail and drive to deliver great work

You'll be fully supported by a highly skilled team that truly values the fresh perspectives, energy, and ideas you bring-we invest in your growth and love seeing what you contribute.

At osapiens, more than 550 talented minds unite around one mission: enabling sustainable growth for businesses worldwide. Founded in 2018 and headquartered in Mannheim, Germany, we have built the AI-driven osapiens HUB - a multi-tenant platform hosting 26 enterprise-grade solutions designed for cross-company collaboration, automation, and compliance. With offices across Europe and the US, we are shaping the future of scalable and secure business technology.