$ whoami

hi, i'm denys

Java backend engineer · fintech & payments

Java lead. Fintech survivor. Recovering perfectionist. I've spent 9 years making sure financial systems don't do embarrassing things with other people's money — clearing houses, compliance platforms, internet banking. If a transaction touched something regulated, I've probably debugged something near it. These days I'm also running experiments on AI — treating it less like magic and more like a new distributed system that occasionally hallucinates its logs.