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

Department: osapiens Hub Location: Mannheim Description We are seeking Junior Java Developers to support the ongoing development and enhancement of our osapiens HUB. You will play a key role in ensuring the delivery of high-quality, scalable solutions that empower our platform. Join us in pushing the boundaries of innovation and making a significant impact on our enterprise-grade application development platform. The osapiens HUB 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. 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. Your Responsibilities Assist in the design and development of Java-based enterprise software, with a focus on backend systemsParticipate in developing Java services and components to support our software solutionsCollaborate in an agile team setting, learning from senior developers and growing your technical and professional skills Your Experience Foundational knowledge of Java or JavaEE, with a willingness to learn SpringBasic understanding of databases; experience with SQL or NoSQL databases like Cassandra is a plusFamiliarity with web services development or integration (REST, SOAP, etc.)Interest in learning and applying automated testing principlesExposure to distributed systems (knowledge of distributed systems is a plus)An interest in OpenSearch, ElasticSearch, or similar technologiesFamiliarity with version control systems, especially GitA collaborative, agile mindset, and eagerness to learn Join us for this and more... A purpose-driven mission tackling complex sustainability challenges while working alongside global industry pioneers at a fast-growing unicorn companyRoom for creativity through collaborative teamwork and an open communication cultureFlexibility and team bonding with our hybrid work optionsFuel for your growth journey, both personally and professionallySustainable mobility options, promoting eco-friendly commuting solutionsFun team events and outings with our global teamsInspiring workspaces in Mannheim and beyond