Junior Java Developer (m/w/d)

At osapiens, we are committed to empowering businesses economically while promoting human rights and establishing ecologically sustainable and responsible corporate governance as a global standard.

We support global enterprises in over 60 countries in integrating sustainability and positioning themselves for the future. To achieve this, we develop comprehensive SaaS solutions that create transparency and sustainable growth across the entire value chain, meet ESG requirements, and automate manual processes.We are now 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 modern, enterprise-grade application development platform. It provides everything needed to build powerful business applications in a "serverless" fashion. This means users don't need to worry about managing infrastructure, scaling, fail-over, or backups. Instead, users can focus on their highest value activities: implementing business logic and crafting beautiful user interfaces.

• Assist in the design and development of Java-based enterprise software, with a focus on backend systems
• Participate in developing Java services and components to support our software solutions
• Collaborate in an agile team setting, learning from senior developers and growing your technical and professional skills

• Foundational knowledge of Java or JavaEE, with a willingness to learn Spring
• Basic understanding of databases; experience with SQL or NoSQL databases like Cassandra is a plus
• Familiarity with web services development or integration (REST, SOAP, etc.)
• Interest in learning and applying automated testing principles
• Exposure to distributed systems (knowledge of distributed systems is a plus)
• An interest in OpenSearch, ElasticSearch, or similar technologies
• Familiarity with version control systems, especially Git
• A collaborative, agile mindset, and eagerness to learn

• A purpose-driven mission with and for global industry pioneers in tackling complex challenges
• Room for creativity through collaborative teamwork and an open communication culture
• Flexibility and team bonding with our 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 our global teams
• Inspiring workspaces in Mannheim and beyond