Product (Software) Engineer. I make businesses more efficient and more profitable with software, and I talk business, not tech.
Idea → Agentic SDLC → Production · Vilnius, Lithuania · 15+ years in software, 10+ leading teams
I take the processes a business already runs — orders, stock, invoicing, delivery — and turn them into a system that does the work. Then I judge it the way an owner does: did orders stop leaking, did the month get cheaper, did a seven-day job turn into a two-hour one.
| Project | What changed for the business |
|---|---|
| MakeKudri · hair-care brand | Orders, stock, fiscal receipts, courier waybills and P&L in one system. An order goes from payment to delivery without anyone retyping it. |
| Curl School · course platform | Enrolment, payment, access and the certificate happen without anyone in the office touching an order. |
| LilyAssist · school psychologists | An evaluation report that took seven working days now takes about two hours. Backend and the report generation engine. |
| Garment Production System · clothing factory (NDA) | The factory always knows what is being sewn, from which fabric and print, against which order. Lead developer. |
| How I killed the SaaS · hair salon | The data taken out of a vendor that did not want to give it, a new system around it, history back to 2013. Runs at perukar.org. |
| NestorDoc · doctors | The consultation is transcribed live; notes, likely diagnosis and prescriptions are drafted by the time the patient leaves. |
| Connexa · ParentHive · iOS and Android | A paper business card becomes a LinkedIn connection; parents arrange the school run together. |
Thirteen case studies: oleksandr-antonenko.com
- curl-erp — system of record for a small commerce business: catalogue, stock, money, counterparties and documents.
- foldkit-extras — UI building blocks: time-grid scheduler, grouped side navigation, ⌘K command palette.
TypeScript · Effect-TS · Foldkit · NestJS · Next.js · React · React Native · PostgreSQL · Claude Code
oleksandr-antonenko.com · LinkedIn · antonenko.web.dev@gmail.com
