Onpadel.
SaaS for padel tournaments. Led a design team through prototyping, then built it from scratch and took it to market. 11k+ users, real traction, and revenue.
11,000+registered players
900+tournaments held
Buenos Aires · Senior Product Engineer Nahuel
Nahuel
Krowicki.
I build products and write down what I learn along the way. 9+ years in software.
I founded and launched a SaaS, 11k+ users.
Blog All writing →
Building the product was the easy part
What building Onpadel taught me about users, trust, sales, and everything that happens after you write the code.
Building software no longer requires a big team
Building keeps getting easier. Creating value, not so much.
What it means to be full-stack in 2026
Full-stack in the AI era: less code, more judgment, and the ability to understand and solve problems.