01 — Currently
Building the next-generation sales platform at thermondo — Germany's largest heating installer. Leading two product teams through a full platform transformation, replacing legacy systems with modern architecture for 120 sales agents.
Thinking a lot about how AI changes the way we build products, what ethical technology looks like in practice, and how software can accelerate the energy transition.
02 — Selected Work
Sales Platform Transformation
Rebuilding thermondo's entire Lead-to-Cash flow. Salesforce, new data models, payment architecture, 120-agent rollout.
Salesforce · Revenue Cloud · API
3D Interactive Portfolio
Immersive web experience with fluid simulations and 3D scenes. Self-taught creative coding.
Three.js · GSAP · Blender
PM Resources
Open-source collection of product management frameworks, templates, and guides. 24 frameworks, 8 templates.
Markdown · Open Source
03 — Writing
Thinking out loud. Coming soon.
Coming soon
AI and the Product Leader
What changes when your most powerful tool can think. Reflections on building products in the age of AI agents.
Coming soon
Platform Thinking
Lessons from migrating business-critical systems. Why the hardest part is never the technology.
> Topics I think about: AI & product, the energy transition, platform transformations, building teams, the human side of technology.
04 — Connect
> Say hello_
hi@yannicksteinmann.comI'm always open to conversations about product, climate tech, AI, or anything else worth thinking about.