Lukas working with the Mimo team — From left to right: Kevin, Lukas, Donatien, and Filip

10 / 10

Hope you're fired up, ready to go

Startup portfolio

Tripling landlord income while lowering student housing costs

As CTO, I developed an online marketplace and rental management tools, enabling landlords to bypass a €4 per m² rent cap and opening up cheaper housing options for students.

Highlights

Key metric: €50,000 MRR for landlords
Position: Chief Technology Officer
Company size: 2–3 people
Product page: friends-in-flats.com (opens in a new tab)
Status: Live

Key projects

Organic tenant growth
Booking and payments system
Listing algorithms

Teaching 25,000,000 people to learn to code

As first product manager, I led two teams toward the Mimo mission of making coding accessible to everyone.

Highlights

Key metric: €800,000 MRR
Position: Product Manager
Company size: 14–30 people
Product page: mimo.org (opens in a new tab)
Status: Live

Key projects

Scaling content generation
Concept chunking with gamification
The Learn to Code Track

Recommendation

Recommendation from Lorenz, CPO

Helping young Americans save over $1,000,000

Imagine saving money felt like winning. Tip Yourself changed people’s money mindset. As CTO, I launched the iOS app.

Highlights

Key metric: 29,000,000 downloads on Earnin
Position: Chief Technology Officer
Company size: 2–3 people
Product page: Tip Yourself on earnin.com (opens in a new tab)
Status: Acquired

Key projects

iOS launch
Online bank transactions system
Social network

Recommendation

Recommendation from Mike, CEO

Now building: Friends in Flats

Generating €50,000 MRR for landlords, the public listing site is free to explore without creating an account.

Open website

A special thanks to the people that

Shaped me

Milton & Karoline Carvajal
Dr Anthony Krupp
Luis Carlos Perea

Bet on me

Dr Gokila Dorai
Dave Carvajal
The Tip Yourself founders
The Mimo founders
Andrew Strait
Mathias Molnar

Built things with me

Samat Kadyrov
Lori Porumb
Radu Meister
Joseph O’Brien
Filip Ruisl
Helene Karlinger
Christopher Simerle
Filip Greš
Thomas Sattlecker

You make life a lot of fun and taught me loads over the years. Everything on this site happened because of you.