What You'll Do
We are looking for a (Senior) Backend Developer who takes ownership and thinks about backend systems from initial concept through to production. Whether you’re building robust APIs, designing high-performance database architectures, or integrating AI solutions, your hands-on mindset and technical judgment make the difference.
You will work closely with frontend, product, and AI teams and play an active role in shaping our technical future.
As a (Senior) Backend Developer (m / f / d), you will be responsible for :
- Designing and implementing scalable server-side architectures and database models
- Developing, maintaining, and evolving high-performance, secure, and maintainable backend services
- Owning API design, versioning, and lifecycle management
- Collaborating closely with frontend teams to integrate user-centric features
- Building and operating scalable infrastructure for AI workloads and external API integrations
- Ensuring high software quality through automated testing (unit, integration, and end-to-end)
- Actively monitoring and evaluating new technologies and architectural trends
What you bring
Hard Skills
Several years of experience as a (Senior) Backend DeveloperStrong proficiency in Kotlin, Java, or another JVM-based languageSolid understanding of modern backend development principles and architecturesHands-on experience with LLM integrations (e.g. OpenAI, Anthropic, or comparable APIs)Experience working with vector databases (Pinecone, Weaviate, Qdrant) for RAG implementationsUnderstanding of prompt engineering, context management, and AI orchestration frameworks (e.g. LangChain, LangGraph)Experience with message brokers and queueing systems (e.g. RabbitMQ or similar) is a plusExperience with Micronaut, MySQL, AWS, and Kubernetes is an advantage, but not a requirementBusiness-fluent English and good German language skillsSoft Skills
Openness, courage, and a creative, solution-oriented mindsetClear communication and strong alignment with both team and product stakeholdersHigh sense of ownership and strong quality awarenessEnjoyment of working collaboratively in a fast-paced, dynamic environmentWhat we promise
Work Environment & Flexibility
Office-first company : Hybrid setup with 3 days in the office and 2 days working from home, offering flexibility in how you structure your workModern, air-conditioned office with plenty of natural daylightCentral location between Gleisdreieck and Potsdamer Platz with excellent public transport accessSpacious rooftop terrace with stunning views over BerlinBenefits
Full coverage of a Germany-wide public transport ticketDog-friendly office – we’re happy to welcome four-legged team membersCorporate benefits platform with attractive offers and discounts across many brandsCompany pension scheme with a 20% employer contribution – we invest in your futureRegular company and team events to strengthen collaboration and team spiritAfter-work fun : Nintendo Switch, PS5, darts, and table footballFree drinks, fresh fruit, and muesli available at all timesCompany Culture & Collaboration
Agile and modern mindset with open communication – every voice is heardMeaningful areas of responsibility with a strong focus on practical, real-world legal solutionsThe opportunity to actively shape our journey and contribute from day oneFeedback is part of our culture – we believe in continuous, shared growthFast Application Process
Fast feedback1. Approx. 20-minute introductory call with our HR team2. Approx. 60-minute on-site interview with your hiring manager3. Approx. 30-minute meeting with the management teamA prompt offer following the interview processAbout us
Legalhero is the modern platform for legal protection insurance and lawyers. We pursue the ambitious goal of revolutionizing the claims settlement process for legal protection insurance. To this end, we integrate directly into the insurers' systems. Our partner lawyers handle cases highly efficiently and in a customer-oriented manner on our tech platform with the help of AI. Legalhero was founded in 2017 and has helped hundreds of thousands of policyholders to date. Our approximately 90 colleagues are based in Berlin, near the Gleisdreieck.
An inclusive, equal, and non-discriminatory work environment is a matter of course for us. If you have a disability or special needs and require special support during the application process, please let us know.