Writing
Thoughts on startups, hospitality, AI, and things I'm learning along the way.
From 10,000 Rooms to Crypto Spreads to Airbnb Arbitrage
How a failed marketplace, a BTC arbitrage bot, and one Airbnb listing turned into a million-dollar short-term rental business in Istanbul.
Why I Left Investment Banking to Start Companies
Can Koseoglu on the leap from UBS, Fibabanka, and IEG to founding startups — what finance taught me, what it couldn't, and why building felt like the only path forward.
Scaling a Marketplace to 10,000 Rooms Across 12 Countries
Lessons from building ErasmusInn — a student accommodation platform backed by 500 Startups. What worked, what broke, and what I'd do differently.
Building the Invisible GM: Why Hospitality Needs Autonomous Agents
Can Koseoglu on why the next leap for hospitality isn't better software — it's AI agents that define goals and decide the steps to get there, end to end.
What I Look for in a Co-Founder
After starting multiple companies, here's what I've learnt about finding the right people to build with — and the mistakes most first-time founders make.
How to Get Your First 100 Customers
A practical playbook from Can Koseoglu on early-stage customer acquisition — no growth hacks, just the hard work of talking to people and solving real problems.