Senior Software Engineer - Backend (Java) (m/f/x)

<h1>Senior Software Engineer - Backend (Java) (m/f/x)</h1><p><strong>Department: </strong>osapiens Hub</p><p><strong>Employment Type: </strong>Permanent - Full Time</p><p><strong>Location: </strong>Mannheim</p><br/><h3>Description</h3>The <strong>osapiens HUB</strong> is a cloud-based platform that helps businesses manage their sustainability, compliance, and transparency efforts more easily. The HUB offers ready-made software solutions that automate compliance with environmental and social regulations, helping businesses track and improve sustainability with minimal manual effort. It’s user-friendly, adaptable, and optimizes existing resources.  Think of it as an all-in-one toolkit for businesses looking to operate more sustainably while keeping up with legal requirements without getting bogged down in technical or administrative hassles.  <br/>This role is based in Mannheim, a vibrant tech hub at the heart of Germany, where you'll collaborate with a talented, forward-thinking team. We embrace a hybrid work model, with three days a week in the office, ensuring the perfect balance between in-person collaboration and remote flexibility. <br/><h3>Your Responsibilities</h3><ul> <li>Design and build scalable, reliable backend systems that power the osapiens HUB, using Java and modern technologies </li> <li>Develop core business logic to support enterprise-grade software solutions and solve complex real-world challenges </li> <li>Collaborate with cross-functional teams (engineers, product managers, designers) to create seamless, integrated end-to-end solutions </li> <li>Develop and maintain web services (RESTful, GraphQL) to integrate with various platforms and support clients' needs </li> <li>Ensure high-performance, scalable solutions that meet the growing demands of global enterprises </li> <li>Mentor junior engineers and promote best practices in coding, testing, and development processes </li> </ul><br/><br/><h3>Your Experience</h3><ul> <li>Expertise in Java/JavaEE and Spring Framework, with a deep understanding of building high-performance, scalable backend systems </li> <li>Familiarity with NoSQL databases like Cassandra, ScyllaDB, or similar </li> <li>Strong web services expertise in designing and integrating RESTful and GraphQL APIs </li> <li>Proficient in automated testing and CI/CD practices to ensure continuous delivery of high-quality code. </li> <li>Experience with distributed systems, focusing on scalability and fault tolerance </li> <li>Hands-on experience with search technologies like OpenSearch, Elasticsearch, or similar </li> <li>Proficient in Git for version control and collaborative development </li> <li>Agile mindset with experience working in cross-functional teams and sprints </li> <li>Experience with DevOps</li> </ul><br/><br/><h3>Join us for this and more...</h3><ul> <li>A purpose-driven mission with and for global industry pioneers in tackling complex challenges</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><br/>