Lead Software Engineer

Founding Software Engineer | Deep Tech Startup | Greenfield Platform | Cologne (Hybrid) AI Futures have been retained to find a Founding Software Engineer for a fast-growing technology scaleup building a next-generation data and computation platform. Built entirely in TypeScript, the platform powers complex data operations, real-time computation, and enterprise-grade reliability. This is a hands-on, high-impact engineering role, working closely with the founding team to architect, build, and scale the core product from the ground up. Hybrid: 3 days per week onsite in ColognePackage: Up to €100k salary + VSOP The RoleDesign and build the platform’s TypeScript-based data modelling and computation layer.Develop scalable, modular architecture to manage complex enterprise data workflows.Work across backend and frontend boundaries to deliver seamless system performance.Prototype rapidly, balancing engineering precision with startup agility.Establish best practices for code quality, testing, and reliability in a growing engineering team. The Candidate2+ years of experience in software or full-stack engineering.Expert-level TypeScript skills with a strong grasp of modern JavaScript principles.Experience with React.js, Next.js, or Solid.js for frontend architecture.Strong understanding of SQL and data modelling concepts.Experience designing scalable systems and clean APIs from scratch.Languages: German (English a plus). AI Futures Ltd | Filling the AI Skills Gap®