Backend engineering at Legal Hero means full ownership. You'll design and run services in our Kotlin/Java stack with Micronaut on AWS, wire LLM capabilities reliably into product flows, harden production systems, and actively shape our testing, deployment, and observability practice — together with a team that takes the craft seriously.
Design and own scalable backend services from first commit to production — APIs, data models, versioning, SLOs, and on-call included
Build and evolve high-performance, secure infrastructure that handles real load — not just greenfield, but messy reality
Wire LLM-powered capabilities reliably into product flows: suggestion APIs, RAG-backed endpoints, agent tool calls — you make AI actually land in production
Work closely with frontend, product, and AI teams — your APIs are their foundation, so you design them to last
Make the hard tradeoffs: schema migrations, breaking changes, dependency upgrades — with judgment, not just best practices
Raise the quality bar through automated testing (unit, integration, end-to-end) and push for architectural improvements that matter
Lead incident investigations on your own services, write the postmortem, and escalate only once you have answers
6+ years in backend engineering, including 2+ years at senior level
Strong proficiency in Kotlin or Java — JVM idioms feel like home
Relational databases (MySQL or similar) and at least one public cloud in production, AWS preferred
Distributed systems thinking as a reflex: idempotency, retries, eventual consistency, observability
Business fluent English; German at B1 or a clear commitment to get there within 12 months
Nice to have — and what you'll pick up here:
Micronaut, Kubernetes, AWS Bedrock, LiteLLM, the official Claude Agent SDK, MCP-based architecture
Experience with regulated data environments (GDPR, BaFin, §203 StGB)
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 work
Modern, air-conditioned office with plenty of natural daylight
Central location between Gleisdreieck and Potsdamer Platz with excellent public transport access
Spacious rooftop terrace with stunning views over Berlin
Benefits
Full coverage of a Germany-wide public transport ticket
Dog-friendly office – we’re happy to welcome four-legged team members
Corporate benefits platform with attractive offers and discounts across many brands
Company pension scheme with a 20% employer contribution – we invest in your future
Regular company and team events to strengthen collaboration and team spirit
After-work fun: Nintendo Switch, PS5, darts, and table football
Free drinks, fresh fruit, and muesli available at all times
Company Culture & Collaboration
Agile and modern mindset with open communication – every voice is heard
Meaningful areas of responsibility with a strong focus on practical, real-world legal solutions
The opportunity to actively shape our journey and contribute from day one
Feedback is part of our culture – we believe in continuous, shared growth
Fast Application Process
Fast feedback
1. Approx. 20-minute introductory call with our HR team
2. Approx. 60-minute on-site interview with your hiring manager
3. Approx. 30-minute meeting with the management team