Software architect, CEO of Fingoweb, CTO of Sellizer
I look at the code, find what's going to break once real users show up, and help fix it before it does. Security, architecture, the reliability stuff that gets skipped when you're moving fast.
A bit of background, in three numbers.
What I help with
Three situations come up again and again. Here's where I tend to fit in.
For founders and product teams
You built it fast with AI or no-code, and now real users are showing up. I go through it and shore up the parts that break first: auth, data, security, scaling. So the launch holds instead of falling over.
Let's talk →For companies on aging software
An old PHP system or a monolith that just can't go down? I help modernize it in steps, with AI doing a lot of the heavy lifting. No giant rewrite, no feature freeze.
Let's talk →For CTOs, investors and acquirers
Need an honest read on a codebase before you bet on it? I review AI-built or legacy code for security, architecture and the real risks, then give you a plain report on what to fix first.
Let's talk →Not sure which fits? Tell me what you're building →
Selected work
Custom software company, Kraków
My company. When something needs building or fixing for real, this is the team behind it. Clients in Poland and abroad.
Visit Fingoweb →B2B SaaS, sales engagement
A live SaaS I help run as CTO. It tracks when prospects open your proposals and what they actually read. Real product, paying customers.
Visit Sellizer →Over 100 projects by now, from quick MVPs to systems that move real money. Fintech, healthcare, retail, manufacturing, SaaS.
Writing
I write up what I learn. Checklists, rules of thumb, mistakes I've seen. Mostly about getting AI-built and legacy code ready for real use.
The things that actually break when a vibe-coded app meets real users (auth, secrets, data access, payments, scale), and how to fix them.
Read it →How to decide between hardening, incremental modernization and a full rewrite, and how AI changes the math in 2026.
Read it →A practical checklist for founders, investors and acquirers evaluating software that was built fast with AI.
Read it →FAQ
Shipped fast with AI, stuck on an old system, or just want an honest second opinion? Tell me where you're at, the first call is free.
Based in Kraków, working with teams worldwide, in English
