• Expertise in Java/JavaEE and Spring Framework, with a deep understanding of building high-performance, scalable backend systems
• Familiarity with NoSQL databases like Cassandra, ScyllaDB, or similar
• Strong web services expertise in designing and integrating RESTful and GraphQL APIs
• Proficient in automated testing and CI/CD practices to ensure continuous delivery of high-quality code.
• Experience with distributed systems, focusing on scalability and fault tolerance
• Hands-on experience with search technologies like OpenSearch, Elasticsearch, or similar
• Proficient in Git for version control and collaborative development
• Agile mindset with experience working in cross-functional teams and sprints
• Experience with DevOps

• Design and build scalable, reliable backend systems that power the osapiens HUB, using Java and modern technologies
• Develop core business logic to support enterprise-grade software solutions and solve complex real-world challenges
• Collaborate with cross-functional teams (engineers, product managers, designers) to create seamless, integrated end-to-end solutions
• Develop and maintain web services (RESTful, GraphQL) to integrate with various platforms and support clients' needs
• Ensure high-performance, scalable solutions that meet the growing demands of global enterprises
• Mentor junior engineers and promote best practices in coding, testing, and development processes

• Flexible Working Hours
• Free choice of work equipment
• 30+ vacation days
• Job ticket
• Job bicycle
• Events
• Discounts
• Accessibility
• Meals
• Well-Connected by Public Transport
• Relocation support
• Parking
• Free beverages

osapiens supports global companies from various industries in establishing sustainability within their organizations and positioning themselves for the future. To achieve this, we develop holistic Software-as-a-Service solutions that create transparency and sustainable growth along the entire value chain, fulfill legal ESG requirements, and automate manual processes. osapiens aims to not only strengthen companies economically but also we also promote human rights and ecologically sustainable and responsible corporate governance as the global standard.

We leverage our cloud-based technology platform, the 'osapiens HUB', and innovative technologies such as artificial intelligence to help companies seamlessly implement and automate compliance with international and national ESG laws and guidelines, including CSRD, EUDR, and CSDDD, and to further ensure accountable sustainability reporting. The osapiens HUB is continuously being developed and expanded to accomodate new solutions for evolving ESG regulations, as well as solutions for improved transparency and efficiency.

osapiens was founded in Germany in 2018 and we currently serve over 1,200 customers worldwide. The company is headquartered in Mannheim and has offices in Berlin, Cologne, Munich, Madrid, Paris, Amsterdam and London. We employ over 300 people from 60 countries. In 2022, we were honoured to receive the German Founder Award in the 'Rising Star' category.