Economics and finance studentBelgrade, Serbia2026
How would I introduce myself?
I'm curious about a lot of things, I pick things up fast and I adapt to anything quickly.
Where do I work best?
Where I have a reason to push my brain further. Monotonous, mechanical work done only for the salary doesn't hold me.
Why finance?
Because it moves everything, from healthcare to construction and logistics. Its goal is to make life better and fuller, not to keep us trapped in it.
How did I get into the stock market?
At 15, in my first year of high school, I started learning about the stock market. That is where I found something I truly love. It is still my own corner of the world.
What sets me apart from people my age?
More courage and different plans for my life.
What do I do outside work?
I train, walk my dog and read about technology, AI, economics and the stock market. That is literally my whole feed on Twitter.
Open to jobs and internships, finance first
markobera749@gmail.com→Work experience alongside school and university.
Applied Economics and Finance, Faculty of Applied Management, Economics and Finance (MEF), Belgrade
First year · 2026 – 2030 (expected)
First School of Economics (Prva ekonomska škola), Belgrade
Banking and insurance clerk · 2022 – 2026
Serbian, native · English, C1
Excel and Microsoft Office
Driving licence, category B
AI tools: Claude, ChatGPT, Gemini
Building working apps and websites with AI agents
Football referee, Belgrade Football Association
Following markets, business and technology
Languages
Frontend
Mobile
Backend and data
AI and computer vision
Data and analysis
Tools, APIs and hosting
heybera is my startup. The others I built in my free time. For each one I wrote down how it started and what I learned along the way.
My fintech startup: the stock market in plain English
A free website about the stock market for everyday investors. Every morning a story of the day, earnings coverage before and after each report, an economic calendar, company research and live prices. I pick the stories and approve everything before it goes out.
Prediction market for Serbia
An app where people predict how real events in Serbia will turn out, like elections and the economy, using play money. It runs on iOS, Android and the web. The AI writes the questions, and a separate check catches its mistakes.
AI rules for ordinary security cameras
You write in plain words what the camera should watch for, like “tell me if anyone walks into the room at night”. When it happens, a photo reaches you on Telegram in about two seconds. It all runs on an ordinary computer, with no expensive hardware.
Calorie tracker for Serbia
An app for tracking calories and weight, made for Serbian food. You log a meal with a photo, your voice or the nutrition label. It works out how much you really burn from your weigh-ins, so it doesn't have to rely on a formula.
Match-fee payments for the Belgrade FA
I referee in the Belgrade Football Association. After every match referees pay a fee to the association, and the office used to check the bank statements by hand. I built an app where a referee sees how much to pay and where, and the office sees who has paid.
Finding clients for website work
A script finds businesses in Belgrade that don't have a website. For a clinic I pick, I build the site before I even call them, so I show up with a finished site.
[ Case studies ]06
01 heybera.comMy fintech startup: the stock market in plain English Live · heybera.com Next.jsTypeScriptPostgreSQL (Supabase)VercelClaude 02 ProtectumPrediction market for Serbia iOS TestFlight · web live ExpoReact NativeSupabaseDenoGemini 03 Vision GuardAI rules for ordinary security cameras Working prototype PythonYOLO11OpenCVNext.jsSupabaseClaudeTelegram 04 FitMessCalorie tracker for Serbia App Store approved Aug 2026 · on hold Next.js 16TypeScriptSupabaseCapacitorGemini 05 FSB DoprinosiMatch-fee payments for the Belgrade FA Live PythonFlaskPostgres (Supabase)Vercel 06 Lead Finder + dental sitesFinding clients for website work Tool done · 12 pitch sites built PythonGoogle Places APIHTML/CSS/JS[ Smaller builds ]03
A music player without ads that I made for myself. It installs on the phone like an app and has a queue and favourites.
Python, Flask, PWA
My own online shop for home gadgets. Customers pay cash on delivery, and I follow each order from the moment it comes in until it's delivered.
Python, Flask, SQLite
A shooter game that runs in the browser. The whole game is a single file.
Three.js
In progress
A way for Claude to read data straight from my apps.
01
Before I build anything, I find out how the job is actually done. That's how I learned that in my association the lead referee pays for the whole crew.
02
I usually have a few AI assistants working at the same time, each on its own part. I decide what gets done and I review what they hand back.
03
AI is often wrong and sounds sure of itself anyway. On Protectum I checked 287 questions it wrote and found a mistake in 154 of them.
04
I track what every AI call costs me. When one day on Protectum came to $12.61 and wasn't worth it, I switched the automation off.
Reach me by email or phone.
markobera749@gmail.com
