Java software engineer Jobs in Köln

We’re seeking a pragmatic Lead Software Engineer (Full-Stack, Python-first) to help one of Europe’s fastest-growing legal tech companies scale its software platform end to end. Our AI-powered products are already in market; now we need robust, extensible architecture and impeccable execution to support rapid growth and new feature velocity.

Reporting to the Head of Engineering , you’ll own critical services and user-facing features across the stack while guiding implementation standards. You’ll stay hands-on while mentoring teammates, enforcing code quality, and driving technical decisions that keep our systems secure, observable, and performant at scale.

For a builder who loves clean abstractions, production-grade code, and working closely with product and AI teams, this is a chance to have outsized impact on a modern, cloud-native platform.

Your Challenge and Opportunity in This Role

This is a rare opportunity to define how a rapidly expanding product is architected, shipped, and maintained. As our Lead Software Engineer, you’ll be both system designer and senior IC—translating complex requirements into elegant, reliable software. You’ll establish patterns for scalability (from modular service boundaries to CI / CD pipelines), ensure our Python services are battle-tested in production, and elevate engineering standards across teams. Expect real ownership, deep technical problem-solving, and the chance to influence how our platform evolves across markets and use cases.

Tasks

Strategy & Implementation :

• Architect and implement robust scalable solutions for our product suite
• Design and develop sophisticated systems
• Establish best practices for software development, testing, and deployment across products
• Initially handle development across the stacks as a core technical contributor

Technical Leadership :

Cross-functional Collaboration :

Requirements

Technical Expertise :

Leadership Skills :

Strategic Vision :

Requirements :

Benefits

🚀 Foundational Impact – Help to deliver our Engineering strategy

🔒 Technical Ownership – Full ownership of our the features from end to end

🌱 Growth Environment – Work at the cutting edge of generative AI and LLMs

💼 Leadership Visibility – Flat hierarchy with direct report to the Head of Engineering

🏡 Fully Remote – Enjoy the flexibility of working from anywhere

💻 Top Equipment – State-of-the-art MacBook plus all the accessories you need

🏋️ Wellbeing Perks – Urban Sports Club membership to support your healthy lifestyle

If you're passionate about pushing the boundaries of what's possible with SaaS softwares with AI and want to lead the technical development of one of our multi disciplinary teams while maintaining hands-on involvement, we'd love to hear from you!

Wir denke die Rechtsbranche neu - als eines der schnellstwachsenden Legal Tech Startups in Deutschland haben wir die erste KI-Software entwickelt, die selbstständig Rechtsthematiken erkennt und so die Anwaltsarbeit automatisiert. So helfen wir Anwaltskanzleien dabei, mehr Mandanten zu gewinnen und gleichzeitig Zeit und Aufwand in jedem neuen Mandat zu sparen.