Backend Developer (w/m/d) - Kotlin/Java

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  "location": {
    "raw": "Berlin",
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    "country": "Berlin",
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{
  "id": "2522007",
  "name": "Backend Developer (w/m/d) - Kotlin/Java",
  "office": "Berlin",
  "keywords": [],
  "schedule": "full-time",
  "createdAt": "2026-02-06T18:59:34+00:00",
  "seniority": "experienced",
  "department": "Tech",
  "occupation": "software_and_web_development",
  "subcompany": "Legal Hero GmbH",
  "employmentType": "permanent",
  "jobDescriptions": [
    {
      "name": "What You'll Do",
      "value": "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.<br><br>You will work closely with frontend, product, and AI teams and play an active role in shaping our technical future.<br><br><u>As a (Senior) Backend Developer (m/f/d), you will be responsible for:</u><br><ul><li>Designing and implementing scalable server-side architectures and database models</li><li>Developing, maintaining, and evolving high-performance, secure, and maintainable backend services</li><li>Owning API design, versioning, and lifecycle management</li><li>Collaborating closely with frontend teams to integrate user-centric features</li><li>Building and operating scalable infrastructure for AI workloads and external API integrations</li><li>Ensuring high software quality through automated testing (unit, integration, and end-to-end)</li><li>Actively monitoring and evaluating new technologies and architectural trends</li></ul>"
    },
    {
      "name": "What you bring",
      "value": "<strong>Hard Skills</strong><ul><li>Several years of experience as a (Senior) Backend Developer</li><li>Strong proficiency in Kotlin, Java, or another JVM-based language</li><li>Solid understanding of modern backend development principles and architectures</li><li>Hands-on experience with LLM integrations (e.g. OpenAI, Anthropic, or comparable APIs)</li><li>Experience working with vector databases (Pinecone, Weaviate, Qdrant) for RAG implementations</li><li>Understanding of prompt engineering, context management, and AI orchestration frameworks (e.g. LangChain, LangGraph)</li><li>Experience with message brokers and queueing systems (e.g. RabbitMQ or similar) is a plus</li><li>Experience with Micronaut, MySQL, AWS, and Kubernetes is an advantage, but not a requirement</li><li>Business-fluent English and good German language skills</li></ul><strong>Soft Skills</strong><br><ul><li>Openness, courage, and a creative, solution-oriented mindset</li><li>Clear communication and strong alignment with both team and product stakeholders</li><li>High sense of ownership and strong quality awareness</li><li>Enjoyment of working collaboratively in a fast-paced, dynamic environment</li></ul>"
    },
    {
      "name": "What we promise",
      "value": "<strong>Work Environment & Flexibility</strong><ul><li>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</li><li>Modern, air-conditioned office with plenty of natural daylight</li><li>Central location between Gleisdreieck and Potsdamer Platz with excellent public transport access</li><li>Spacious rooftop terrace with stunning views over Berlin</li></ul><strong>Benefits</strong><ul><li>Full coverage of a Germany-wide public transport ticket</li><li>Dog-friendly office – we’re happy to welcome four-legged team members</li><li>Corporate benefits platform with attractive offers and discounts across many brands</li><li>Company pension scheme with a 20% employer contribution – we invest in your future</li><li>Regular company and team events to strengthen collaboration and team spirit</li><li>After-work fun: Nintendo Switch, PS5, darts, and table football</li><li>Free drinks, fresh fruit, and muesli available at all times</li></ul><strong>Company Culture & Collaboration</strong><ul><li>Agile and modern mindset with open communication – every voice is heard</li><li>Meaningful areas of responsibility with a strong focus on practical, real-world legal solutions</li><li>The opportunity to actively shape our journey and contribute from day one</li><li>Feedback is part of our culture – we believe in continuous, shared growth</li></ul><strong>Fast Application Process</strong><br><ul><li>Fast feedback</li><li>1. Approx. 20-minute introductory call with our HR team</li><li>2. Approx. 60-minute on-site interview with your hiring manager</li><li>3. Approx. 30-minute meeting with the management team</li><li>A prompt offer following the interview process</li></ul>"
    }
  ],
  "occupationCategory": "it_software",
  "recruitingCategory": "Festangestellte"
}