About
Hi, I’m Jiří.
I’m a senior software engineer and app builder from Czechia with 17+ years on Apple platforms and hands-on work on 30+ production codebases — from startup MVPs to large banking apps, plus a few indie apps of my own.
iOS is where I have the deepest expertise, with macOS close behind. Over the years I’ve also done FinTech, HealthTech, Bluetooth/IoT and plenty of other things around actually shipping software.
What I care about
- Building actual products. I don’t want to just implement the next Jira ticket. I want to know why we’re building it, whether users will understand it, and whether there’s a simpler way.
- Pragmatic engineering. Architecture should make change easier, not become the hardest thing to understand. :)
- AI-assisted development. Claude Code, Codex and coding agents are part of my everyday workflow. AI is leverage, not magic — somebody still has to recognise bad output and make the important decisions.
- Automating boring stuff. If I have to do the same thing several times, I’ll probably end up writing a script for it.
My own apps
Building my own apps taught me more about product development than any client project. Onboarding, monetisation, analytics, ASO — when it’s your own product, there’s nobody else to blame. :)

Tells you how much to put aside each month, so the expenses you already know are coming don’t catch you off guard.

See what renews next, get reminded before a free trial ends, and know what your subscriptions really cost per year.

Gets bills out of your head and makes your monthly cash flow easier to understand.

Impossible dilemmas generated fresh for your group by AI, so you never get the same question twice.
You can also find them all on my App Store page.
Looking for an experienced Apple-platform engineer? Have a look at Work with me. :)