Technical Co-Founder (CTO)

• Own the entire technical side of Lichen, architecting and shipping a lean web product with applied AI at its core.
• Map heat and risk signals to specific measures for each site, route them, and log tamper-proof evidence.
• Build the product before the first pilot signs, working from 0 to 1.

Lichen helps German employers comply with heat protection laws, ensuring worker safety during heatwaves and reducing health risks from extreme temperatures. By automating compliance and documentation, it makes workplaces safer and more resilient to climate change.

• Senior full-stack engineer who has shipped a real product solo or near-solo.
• Workflow and automation instinct; experience building operational, compliance, or multi-site software is a strong signal.
• Applied AI fluency: LLM orchestration and data logic in production, in shipping code.
• 0 to 1 temperament; comfortable building before the first pilot signs.
• Genuine pull toward climate or health impact.
• English-comfortable; German is a plus. Berlin-based preferred, or EU with willingness to be in Berlin for key moments.

Meaningful co-founder equity with standard vesting, and a fair written agreement in place before any substantive work starts. Primary compensation is equity at this stage.

Lichen builds climate health compliance software for German employers, turning heat protection requirements into a routed, documented response inside specific workplaces. It is an early-stage startup with active momentum in the Berlin ecosystem.