Backend Developer – Kotlin/Java

🕒 March 28

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Legalhero

WebsiteLinkedInAll Job Openings

51 - 200 employees

💳 Fintech

🛍️ eCommerce

💰 $715k Seed Round on 2014-09

Legal • Fintech • eCommerce

Legalhero is a digital legal service provider aimed at simplifying legal consultations for clients. It focuses on resolving legal issues swiftly without the complications of bureaucracy, long wait times, and uncertainty. Collaborating with major insurance companies in Germany, Legalhero connects clients with qualified lawyers specializing in areas such as tenancy law, criminal law, labor law, and traffic law, thereby transforming the legal market by offering a more efficient and digital approach to legal advice.

📋 Description

• 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

🎯 Requirements

• Several years of experience as a (Senior) Backend Developer • Strong proficiency in Kotlin, Java, or another JVM-based language • Solid understanding of modern backend development principles and architectures • Hands-on experience with LLM integrations (e.g. OpenAI, Anthropic, or comparable APIs) • Experience working with vector databases (Pinecone, Weaviate, Qdrant) for RAG implementations • Understanding 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 plus • Experience with Micronaut, MySQL, AWS, and Kubernetes is an advantage, but not a requirement • Business-fluent English and good German language skills

🏖️ 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