Sastrify is building the future of software management. Our AI-powered platform helps IT, Procurement, and Finance teams discover, acquire, and optimize their software landscape. Founded in Cologne in 2020, we’ve raised €57M+ from top-tier investors (FirstMark, Endeit, HV Capital) and serve 50,000+ users. We’re looking for a Tech Lead who acts as the primary technical counterpart to our Head of Product & Engineering. This is a high-impact, non-managerial, 70%+ hands-on coding role designed for a seasoned engineer who loves the craft of building as much as the “why” of product development. You’ll report directly to the CTO and bridge the gap between product discovery and technical execution.
Ready to shape the future of SaaS management? You'll be working with Max Messing, CTO and Lars Klein, Head of Product.
What you’ll do as our Tech Lead (m/f/d)
Hands-on Execution: Lead by example by writing high-quality, production-ready code across the entire stack (React/Node.fine-tune, how to evaluate LLM output quality, and how to build reliable AI pipelines in production.
Product Partnership: Collaborate daily with the Head of Product & Engineering to translate the product vision into a robust technical roadmap. Front-End: TypeScript, React.js, React Query, Storybook
Back-End: Node.js, TypeScript, PostgreSQL (via TypeORM)
AI/LLM: AI SDK, LangChain.Experience: 7+ years of professional software development, with meaningful time in a senior, staff, or founding engineer role. Expert-level proficiency in the TypeScript/Node.Fluent English. Experience as a founding engineer or early-stage technical co-founder
js, LangGraph, or similar agent frameworks in TypeScript
German language skills
Remote (EMEA, GMT±2) | Ideally DACH region with occasional Cologne office presence
Benefits
~ Work with our amazing international team.
~30 days of vacation.
~ Interview with Talent Acquisition Manager
Interview with the Hiring Manager
The contact person for this role is Frieda Möcker, Head of People & Culture. As an equal employment opportunity employer, Sastrify is committed to promoting an inclusive work environment.