Software engineer in Tunis. Fintech, payments and self‑hosted AI. A resume you check into: ten floors of concrete on the Lake of Tunis, lit by the real Tunis sky.
ياسين بالحولةKaoun
Newest at the top. Each floor sits on everything below it.
Leads the banking squad: cross‑team communication, documented deliverables, outcomes tied to quarterly KPIs. Still ships core banking features, merged every mobile and web project into one monorepo, and owns production stability across environments.
An AI customer‑support layer on a self‑hosted model, so chat becomes a second way to use the app.
A language model on dedicated servers and a rented DGX, with a PII obfuscation module in front of it.
Live‑video identity checks with facial recognition and liveness detection. Also sold to partner banks.
A phone becomes a payment terminal for wallet and card payments over NFC.
Two fintech platforms, each on web and mobile, built from scratch in one shared monorepo.
The university's official website, rebuilt to replace the legacy platform. Still the live site.
Back at Kaoun full time, on fintech products for mobile and web.
Led major features in a React Native app, ran the release pipeline to the App Store, and mentored the freelance team that shipped the first production release.
Refactored a legacy React Native codebase. Class components moved to Hooks, with Redux and TypeScript async actions.
Every project has a room. The first two digits are the floor. Take a key to open the room.
How the building is laid out, and what each part of it holds.
What holds every floor up.
I trained as an instrumentation and industrial maintenance engineer, so I learned to think about systems before I wrote much code: sensors, control loops, the parts that have to keep working at 3am.
Since 2021 I've built fintech in Tunis at Kaoun. That covers payment terminals in a phone, identity checks over live video, and an AI support layer that runs on our own hardware so customer data never leaves the building.
I like work where reliability and privacy are the product. These days I lead the banking squad and still write the core features myself.
Taking calls about fintech, payments and applied AI roles. Remote or Tunis.