Osapiens is looking for a Java Backend Engineer to build the foundation of the osapiens HUB cloud platform. You will design and develop reliable backend systems using Java and modern technologies to power our SaaS products.

What You'll Do

Design and develop reliable backend systems using Java and modern technologies to power the osapiens HUB.
Implement business logic for enterprise-grade solutions and solve complex real-world challenges.
Build and maintain RESTful and GraphQL services that support seamless integrations and client needs.
Work with engineers, product managers, and designers to deliver integrated, high-quality solutions.
Support junior engineers and promote best practices in coding, testing, and backend development.

What We're Looking For

Strong experience with Java/JavaEE and Spring Framework, with deep knowledge of scalable backend architectures.
Familiarity with NoSQL databases (e.g., Cassandra, ScyllaDB) and strong experience designing RESTful and GraphQL APIs.
Proficiency in automated testing, CI/CD practices, and building fault-tolerant distributed systems.
Experience with OpenSearch or Elasticsearch, solid Git skills, an agile mindset, and exposure to DevOps practices.

Technical Stack

Java, JavaEE, Spring Framework
NoSQL (Cassandra, ScyllaDB)
RESTful APIs, GraphQL
OpenSearch, Elasticsearch, Git

Benefits & Compensation

A purpose-driven mission tackling complex sustainability challenges.
Room for creativity through collaborative teamwork and an open communication culture.
Flexibility and team bonding with hybrid work options.
Fuel for your growth journey, both personally and professionally.
Sustainable mobility options, promoting eco-friendly commuting solutions.
Fun team events and outings with global teams.
Inspiring workspaces in Mannheim and beyond.