Hi. I'm Hagen.
Serial technical founder.
I turn ideas into companies — solo start, first customers, product-market fit, team. Then I do it again. Between ventures I work with founders as a technical partner or advisor.
Zizzle eLearning Inc.
USA
A mobile app for learning Chinese, backed by BOOM Startup. Built the product from scratch and led the technical team.
Undisclosed (Exit)
Switzerland
Built a micropayment product on e-money infrastructure. Closed the first major enterprise client, hit €1M ARR in year one, then exited.
TokenForge
Germany
Started alone, found the first customers, reached PMF. Added two co-founders, built the team, brought in investors. Sold my shares in 2023.
Between ventures I work with founders, investors, and established companies as a technical advisor. This includes technical due diligence for investors and acquirers — assessing codebases, architecture, and engineering teams of companies ranging from a German crypto exchange to large healthtech companies and VC-backed startups.
nestfainder.ai
Location intelligence platform · Jan 2026 – present
AI-powered platform helping people find their ideal city to live in — 22,000+ cities worldwide, scored across quality of life, safety, healthcare, and political stability. Solo start, January 2026.
Have an idea worth building?
I'm open to co-founding, consulting, and advisory roles — for early-stage ventures and established companies alike. If you feel like nestfainder.ai is something you want to be part of in any shape or form, I'd love to hear from you.
Thoughts I recently shared on LinkedIn.
Just shipped #lsgit - an open-source CLI tool that works like #ls but for #git repos. Point it at any directory and instantly see every repo
France is a terrible Country! ...at least, that’s what my server thinks. 😅 Why working with France for nestfainder in OpenStreetMap is a "Global" Challenge: If you
Claude Code Team Agents + Team Lead sind der absolute Hammer! Ich nutze die Team-Agents in der Claude Code Beta jetzt seit einem Monat intensiv für nestfainder.ai und ich denke, dass ist aktuell… | Hagen Hübel | 12 Kommentare
Global mobility is not just a trend; it is the future. Driven by economic shifts, climate change, and political landscapes, more people than ever are looking for a new place to call home. Being deeply rooted in the expat community myself, I have seen firsthand that finding that place isn