Job
- Level
- Senior
- Job Field
- Back End
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Berlin
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will design scalable backend services in Kotlin/Java, integrate LLM capabilities into product flows, and enhance our system quality processes through automated testing.
Job Technologies
Your role in the team
- 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.
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Our expectations of you
Qualifications
- Strong proficiency in Kotlin or Java - JVM idioms feel like home.
- Relationale Datenbanken (MySQL oder ähnlich) und mindestens eine öffentliche Cloud in Produktion, bevorzugt AWS.
- 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
- 6+ years in backend engineering, including 2+ years at senior level.
- Experience with regulated data environments (GDPR, BaFin, §203 StGB).
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What we offer
- 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.
- Zentrale Lage zwischen Gleisdreieck und Potsdamer Platz mit hervorragender Anbindung an den öffentlichen Nahverkehr.
- Spacious rooftop terrace with stunning views over Berlin.
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Benefits
Health, Fitness & Fun
Food & Drink
Topics that you deal with on the job
Job Locations
This is your employer
Legalhero GmbH
Legal Hero GmbH, based in Berlin, is an advanced company that offers a digital platform for managing legal protection claims. The company focuses on the digitization of processes related to legal claims reporting and processing. Since its founding in 2017, Legal Hero has positioned itself as a significant startup in the legal tech sector.
Description
- Company Type
- Startup
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Senior Backend Engineer
- Location
- Berlin
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
