Architecting a real-time GPS telemetry platform from zero to production — frontend, backend, ingestion pipeline, and the infrastructure it all runs on.
Stefan Diskić
Complete software products, start to finish — frontend interfaces, backend systems, and the infrastructure that runs them.
Fundamentals first, AI to accelerate. I use Claude Code to ship faster — the engineering judgment behind it is what keeps things solid and secure.
scroll to traverse the system map
A complete web + mobile ordering platform for a multi-city fast-food franchise — and a sister pizza brand launched on the same foundation.
Shipping features across web and mobile for the largest babysitting platform in the Netherlands — one codebase, every screen.
Owning the central API of a plant-nitrogen-estimation platform — and re-architecting a fragile codebase without stopping feature work.
An online store for gas cylinders with two distinct storefronts — one for individual customers, one for businesses — built on Next.js, Payload CMS, and a type-safe tRPC API.
The site for my own digital agency — an animation-led showcase of our work and services, built with Next.js, Tailwind, GSAP, and Three.js.
Frontend for a mobile chat app connecting people by shared interests, in real time, across iOS and Android.
A modern Serbian Bible translation existed only as a PDF. I turned it into structured data and built reading, highlighting, and search across web and mobile.
A Bible trivia game with multiple translations in local SQLite, three difficulty modes, and online multiplayer with shareable lobbies.
I build complete software products — frontend, backend, and the infrastructure they run on. Over the past 6+ years I've shipped real apps end to end, most recently as co-founder and lead engineer of Groute, a fleet-management SaaS built from the ground up.
I favor solid architecture, clean data, and maintainable code over whatever framework is trending. That's also why I lean on modern AI tooling — it lets me move faster without cutting corners on the fundamentals.
Languages
Frontend
Mobile
Backend
Data
Infra & Tooling
Not curated quotes — screenshots straight off my Upwork profile, reviews and all.
Let's build something.
Have a product to ship — or one that's stuck? Tell me about it and I'll give you an honest take on how I'd approach it.