Java Backend Engineer (m/f/x)

None  •  IT & Software  •  Mannheim, Germany

<div class="show-more-less-html__markup show-more-less-html__markup--clamp-after-5 relative overflow-hidden"> <strong>Department: </strong>osapiens Hub<br/><br/><strong>Location: </strong>Mannheim<br/><br/><strong>Description<br/><br/></strong>About osapiens<br/><br/>At osapiens, more than <strong>550 talented minds</strong> 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, <strong>we are shaping the future of scalable and secure business technology.<br/><br/></strong>Your Team<br/><br/>Our Backend Engineers (Hybrid in Mannheim<br/><br/><ul><li> 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.<br/><br/></li></ul><strong>Your Key Responsibilities<br/><br/></strong><ul><li>Design &amp; Develop: Build and implement Java-based enterprise software with a strong focus on backend architecture and scalable system design.</li><li>Own Features: Take full ownership of features from concept to delivery and ongoing support.</li><li>Shape Architecture: Contribute to architectural decisions, technical discussions, and design planning in an agile environment.</li><li>Mentor &amp; Review: Support junior developers and conduct peer code reviews to uphold high-quality coding standards.</li><li>Collaborate &amp; Grow: Work closely within an agile development team, learning from senior engineers and continuously growing your technical and professional skill set.<br/><br/></li></ul><strong>Your Experience<br/><br/></strong><ul><li>Passion for Platform Engineering: You’re excited about building scalable, distributed backend systems that create real-world impact for global companies.</li><li>Java Expertise: Solid experience with Java or JavaEE, ideally with Spring or Spring Boot frameworks.</li><li>Database Skills: Proficiency with relational and/or NoSQL databases such as PostgreSQL, MongoDB, or Cassandra.</li><li>API Development: Strong experience building and integrating RESTful and/or SOAP web services.</li><li>Test Automation: Experience implementing and maintaining automated tests (unit, integration, end-to-end).</li><li>Distributed Systems Knowledge: Understanding of common challenges such as scalability, consistency, and availability.</li><li>Modern Engineering Practices: Familiarity with Git and a collaborative, agile mindset.</li><li>Bonus Skills: Hands-on experience with search and analytics engines like OpenSearch or Elasticsearch is a plus.<br/><br/></li></ul><strong>Join us for this and more...<br/><br/></strong><ul><li>A purpose-driven mission tackling complex sustainability challenges while working alongside global industry pioneers at a fast-growing unicorn company</li><li>Room for creativity through collaborative teamwork and an open communication culture</li><li>Flexibility and team bonding with our hybrid work options</li><li>Fuel for your growth journey, both personally and professionally</li><li>Sustainable mobility options, promoting eco-friendly commuting solutions</li><li>Fun team events and outings with our global teams</li><li>Inspiring workspaces in Mannheim and beyond</li></ul> </div>

Job Overview
  • Datum der Veröffentlichung

    Aug 08, 2026

  • Kategorie

    IT & Software

  • Job Type

  • Standort

    Mannheim, Germany

  • Arbeitgeber

    osapiens

  • Source

    LinkedIn