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.
Tasks:
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
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
Senior Software Developer (m/f/d) Java/Kotlin with Spring Boot • Darmstadt, HE, DE
Wir lieben es, wenn es komplex wird.Als Berater bei nterra gehörst du zum Team unserer techverliebten Consultants.Bei namhaften Großkunden bist du im Einsatz, um deren IT-Landschaften zu homogenisi... Mehr anzeigen
Senior Software Developer | Java/Node/Kotlin | Frankfurt | 95.Location: Frankfurt (onsite & hybrid options).Salary: €95k depending on experience.A modern, forward-thinking tech consultancy is looki... Mehr anzeigen
Are you ready to take on a challenging role in a cutting-edge Cloud Transformation program?.This is your chance to play a key role in shaping the future of mission-critical IT systems for the banki... Mehr anzeigen
Hier bringst Du Deine Energie ein:.In unserem internen Startup der Syna entwickeln wir digitale Services, die den Alltag unserer Kunden und Kollegen leichter machen – von automatisierten PV-Antrags... Mehr anzeigen
Senior Fullstack Developer – Java, TypeScript and Cloud – Frankfurt – 90.Senior Fullstack Developer – Java, TypeScript and Cloud – Frankfurt – 90.Direct message the job poster from Xcede.Experience... Mehr anzeigen
Zusammen mit dir wollen wir die IT-Systeme unserer Großkunden in Telekommunikation und Medien auf das nächste Level heben.Mitarbeit in komplexen Kundenprojekten als.Principal / Lead Fullstack Entwi... Mehr anzeigen
Software Architect – Java – Frankfurt – €100,000-130,000.Software Architect – Java – Frankfurt – €100,000-130,000.Get AI-powered advice on this job and more exclusive features.Software Architect – ... Mehr anzeigen
LLMs, agentische Frameworks, Codegenerierung und Testautomatisierung).Du wirkst in allen Disziplinen des Software-Engineerings mit und schreibst gut designten, testbaren und effizienten Code.Du nut... Mehr anzeigen
Senior Java-Entwickler mit DevOps-Kenntnissen (w⁠/⁠m⁠/⁠d).Die LOGPAY Financial Services GmbH ist der führende Payment Service Provider im deutschen Mobilitä... Mehr anzeigen
Design and development of scalable software architectures for complex applications.Use of modern tools and frameworks such as Spring Boot, Spring MVC, Spring Security, JPA, REST, microservices, Doc... Mehr anzeigen
Provide high-quality products that meet all functional and non-functional requirements.Develop scalable and easily usable Java applications.Create comprehensive documentation.Develop with the best ... Mehr anzeigen
Nehmen Sie Kontakt zu uns auf oder senden Sie uns ein kurzes Feedback.Wir melden uns dann umgehend bei Ihnen.Telefon Niederlassung Baden Württemberg:.Senior Developer - Cluster Buchung 1 (alle Gesc... Mehr anzeigen
LLMs, agentische Frameworks, Codegenerierung und Testautomatisierung).Du übernimmst bei Bedarf die fachliche Führung im Projektteam und gibst dein Wissen (z.Du gestaltest aktiv alle Phasen des Soft... Mehr anzeigen
Lead Developer * (Java, Spring) für agile Softwareentwicklung im Umfeld Elektromobilität.Join to apply for the Lead Developer * (Java, Spring) für agile Softwareentwicklung im Umfeld Elektromobilit... Mehr anzeigen
HyPlus ist Dein Wegbegleiter im digitalen Wandel.Gemeinsam mit unseren Kund:innen entwickeln wir strukturiert, partnerschaftlich und mit klarem Fokus auf nachhaltigen Mehrwert, deren digitale DNA.W... Mehr anzeigen
Entwicklung neuer Features und Umsetzung von Teilprojekten – von der Anforderungsanalyse bis zum Release.Technische Verantwortung für Produkte, APIs und Schnittstellen im industriellen Umfeld.Einsa... Mehr anzeigen
Software Architect – Java, Spring Boot, Kubernetes, Cloud – Frankfurt – €90-100K.A growing FinTech in Frankfurt is building the next generation of liquidity and treasury management software.Their p... Mehr anzeigen
Zusammen mit dir wollen wir die IT-Systeme unserer Großkunden in Telekommunikation und Medien auf das nächste Level heben.Mitarbeit in komplexen Kundenprojekten als.Principal / Lead Fullstack Entwi... Mehr anzeigen
Mein Kunde, ein innovatives und wachsendes IT-Unternehmen, sucht ab sofort einen erfahrenen.Verantwortung für moderne Software-Architekturen übernimmt und die Entwicklungsprojekte auf das nächste L... Mehr anzeigen
Software Engineer - Java - AI Decisioning Platform - Frankfurt - €75–85K.Direct message the job poster from Findr.Helping Germany’s Tech Teams Hire Top‑Tier Software & Security Talent.Software Engi... Mehr anzeigen
