Not every developer starts out dead set on this one exact field. Mladen Mladenovic didn't - what he knew was that he wanted to make things, and stay close to technology while he did it, so programming was the natural place to land. A little over six months into his first stretch as a Full Stack Developer, that instinct is already paying off.
Who He Is Today
At Loncom, Mladen is a Full Stack Developer working on the development team led by Djordje Momcilovic. He joined just over six months ago and has spent that time picking up new ground fast, working across a stack that now includes:
Tech Stack
The tools and platforms he works across day to day
| ✓ JavaScript & Node.js (Backend) | ✓ HTML, CSS & JavaScript (Frontend) |
| ✓ SQL / Databases | ✓ HubSpot (main platform) |
| ✓ AWS / Cloud | |
The Road Here
"What drew me to programming was how broad it is - you could end up in QA, game development, anywhere, because IT touches basically every industry. I figured that whatever I ended up choosing, having a solid grip on coding, front-end and back-end both, would only help. I think that's also part of why I like this work - I just like creating things, whether that's an app, an idea on guitar, or a short video of anything I'm interested in," Mladen says.
That instinct started early. Mladen came up through the Natural Sciences and Mathematics course at Gymnasium "Bora Stanković" before moving on to study Computer Science and Informatics at the University of Niš's Faculty of Electronic Engineering, where he's currently still a student. Along the way, he was building console and web applications in C++, C#, HTML, CSS, and JavaScript - a broad early toolkit that gave him a feel for a bit of everything.
Joining Loncom narrowed that in a good way. JavaScript is what he reaches for day to day now, backed up by Node.js on the backend, AWS for infrastructure, and HubSpot as his main working platform. Working alongside Djordje and the rest of the development team, he's also picked up more SQL and database work along the way.
A Project He's Proud Of
Ask Mladen for a project he's proud of, and it's the one currently taking up most of his time: a full customer platform for a client that rents out storage units across more than 20 locations in Great Britain. It's a big build - payment integrations, ID verification, and login systems all need to work together, on top of a constant flow of API calls keeping Loncom's database in sync with the client's own systems in real time.
It's not the only thing he's shipped, either. Alongside that main project, Mladen has worked on full database migrations, built search engine functionality, and put together web forms for clients in the education sector - a solid range of work for someone just over six months into the role.
Beyond the Office
Outside of Loncom, Mladen spends a lot of his time moving - on foot, on a bike, or up a mountain. A quick snapshot:
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Marathoner Two full marathons and 10+ half marathons, currently training for the Ljubljana Marathon in October 2026 |
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10 Years on Guitar Writes and plays his own ideas, purely for the enjoyment of it |
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Outdoors Camping, mountain climbing, and multi-day biking and camping trips |
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3 Languages Serbian (native), English (fluent), German (learning) |
When he's not out on a trail or logging kilometres, Mladen tinkers with Arduino projects and still dabbles in video editing on the side - an old hobby that never quite went away.
Get to Know Mladen
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