Senior Software Developer (mfd) JavaKotlin with Spring Boot

Do you want to build software that truly makes an impact At etalytics we develop intelligent energy management solutions that help industrial companies reduce energy consumption lower CO₂ emissions and cut costs. With our AI- and data-driven products we actively contribute to a more sustainable future.

As a Senior Software Developer you will join our backend team in Darmstadt and work on our etaONE platform. You will take technical ownership actively contribute to architectural decisions and support the growth of our engineering team with your experience. If you care about clean code modern architectures and meaningful software you will feel right at home with us.

Aufgaben

• Design develop and maintain scalable backend features from REST APIs to the persistence layer using Spring Boot with Java and/or Kotlin
• Actively contribute to the evolution of our cloud-native microservice architecture
• Continuously improve our system landscape using modern technologies such as Docker Kubernetes CI/CD pipelines and asynchronous pub/sub mechanisms
• Provide technical and functional input for new product and solution ideas including architecture and technology decisions
• Ensure high code quality and long-term maintainability through test-driven development automated testing (e.g. JUnit Mockito MockK) and static code analysis
• Mentor and support junior developers while fostering a strong engineering culture focused on learning and knowledge sharing
• Collaborate closely with product management developers and domain experts to translate business requirements into scalable technical solutions
• Actively participate in internal knowledge exchange and continuously stay up to date with backend cloud and software engineering trends

Qualifikation

Must-have:

• At least 5 years of professional experience in backend software development with Spring Boot or comparable frameworks
• Strong proficiency in Java and/or Kotlin
• Experience in building RESTful APIs as well as working with SQL and data modeling
• Hands-on experience with relational databases ideally PostgreSQL
• Solid understanding of software architecture clean code principles and modern software engineering practices
• Experience with CI/CD pipelines and automated testing (e.g. JUnit Mockito MockK)
• Experience in taking technical ownership mentoring or supporting less experienced developers
• Fluent English skills both written and spoken

Nice-to-have:

• Hands-on experience with Docker and container-based architectures
• Experience with Kubernetes and cloud-native platforms
• Experience with asynchronous architectures or event-driven systems
• German language skills are a plus

Benefits

• Purpose-driven work: Support industrial companies in becoming more efficient and sustainable
• Flexibility: Hybrid working with home office options and flexible working hours
• Team spirit: A supportive collaborative environment with plenty of room for exchange and cooperation
• Community: Regular team events and shared activities
• Work-life balance: 30 days of vacation plus a flexible agile work culture
• Well-being: Tax-free benefits card subsidized local gym membership and the option of a job bike

Ready to make an impact

Send us your CV (PDF) together with your earliest possible start date.

We cant wait to meet you and shape the future of energy together!