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

Software Engineer – Backend (Java) (m/f/x)

Department: osapiens Hub

Employment Type: Permanent – Full Time

Location: Mannheim

We are seeking Mid-level 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

• Design and develop Java-based enterprise software, primarily focusing on backend systems architecture and implementation
• Take ownership of features from concept through delivery and support
• Contribute to architectural discussions and design decisions within an agile team environment
• Mentor junior developers and participate in peer code reviews to ensure high-quality code standards
• Collaborate in an agile team setting, learning from senior developers and growing your technical and professional skills

Your Experience

• Solid experience with Java or JavaEE, ideally including Spring or Spring Boot frameworks
• Proficiency in working with relational and/or NoSQL databases such as PostgreSQL, MongoDB, or Cassandra
• Strong experience developing and integrating web services (RESTful and/or SOAP APIs)
• Experience with implementing and maintaining automated tests (unit, integration, and end-to-end)
• Working knowledge of distributed systems and their challenges (scalability, consistency, availability)
• Familiarity with version control systems, especially Git
• Hands-on experience with search and analytics engines such as OpenSearch or ElasticSearch is a plus
• A collaborative, agile mindset, and eagerness to learn

Join us for this and more…

• 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