Vanja SretenovicVanja Sretenović

Hello, I’m
Vanja Sretenović

I'm a software engineer specializing in software architecture.

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Highlights

Flatpack (C++)

Principal C++ structures library focused on performance and safety.

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Flatpack‑Archives (C++)

Archival/serialization layer complementing Flatpack.

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Race Platform (EIK Race)

Laravel backend + C# RFID hardware‑software solution.

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Octopullo

Trip planning product from brand to production.

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Node Load Balancer

Node.js, React, TypeScript, Socket.IO realtime.

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Dark Whale DDoS

Python project exploring TCP sockets and HTTP requests.

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About me

I’m Vanja Sretenović, a software engineer focused on building dependable applications and clean developer experiences. I enjoy working across the stack with a strong preference for type-safe, maintainable code and a product mindset.

My toolkit spans C++ and C# for high‑performance and desktop work, Python for scripting/data tasks, and JavaScript/TypeScript for modern web apps. I’m comfortable with Git‑driven workflows, CI, testing, and turning requirements into well‑structured features.

Outside of coding, I’m continuously learning, refining my craft, and contributing to projects that provide clear value to users and teams.

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Skills

Software

  • C++
  • C#
  • .NET
  • Python
  • Java
  • Kotlin
  • PHP
  • Node.js
  • JavaScript
  • TypeScript
  • Laravel
  • React
  • Next.js
  • jQuery
  • Bash Scripts

Systems

  • Client/Server
  • Linux
  • APIs
  • SSH
  • Git

Cloud & DevOps

  • Docker
  • AWS
  • Lambda
  • S3
  • DynamoDB

Databases

  • MySQL
  • MongoDB
  • Redis
  • PostgreSQL

Game Development

  • Unity

Security

  • AES
  • RSA
  • ECDSA
  • SHA-256
  • Kerberos

Hardware & Embedded

  • RFID / .NET
  • NFC
  • Raspberry Pi
  • Arduino
  • ESP32

AI

  • OpenAI
  • LLMs

Selected projects

Flatpack (C++) (2025)

Core structures library (hashmap) focused on performance and memory safety. Principal C++ project.

  • C++
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Flatpack‑Archive (C++) (2025)

Archival and serialization layer with CLI for archiving and restoring data.

  • C++
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Race Platform (EIK Race) (2025)

End‑to‑end race management platform: Laravel backend for registration/timing and C# RFID hardware integration.

  • Laravel
  • PHP
  • C#
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Android/Kotlin Betting System (2024)

Private Android app with Node.js sockets/APIs for realtime betting and signal sharing. Full product ecosystem.

  • Kotlin
  • Node.js

Octopullo (2025)

Trip planning product built end‑to‑end: brand, marketing/SEO, and software delivery. Laravel-based backend.

  • Laravel
  • PHP
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Node Load Balancer (2023)

Clustered Node.js HTTP proxy with IPC, React dashboard, and Socket.IO realtime. Public repository.

  • Node.js
  • React
  • TypeScript
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Blockchain chat app with smart contract (2023)

Private blockchain cluster with end‑to‑end encryption across C++/Python/Bash/Java/Kotlin stack.

  • C++
  • Python
  • Java
  • Kotlin
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Trading bot on Binance (2023)

Automated trading strategies using Python and the Python‑Binance library.

  • Python
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NodeJS RPC & REST APIs server (2023)

Node.js server exposing RPC and REST endpoints with SSH integrations and AES encryption.

  • Node.js
  • SSH
  • AES
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Blockchain game API server & contract (2023)

Python API server with AES encryption and blockchain smart contract.

  • Python
  • AES
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Dark Whale DDoS (2022)

Research project in Python leveraging TCP sockets and HTTP requests.

  • Python
  • Network
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Full stack web app (2022)

PHP + MySQL backend with JavaScript/jQuery (Ajax) front‑end.

  • PHP
  • MySQL
  • jQuery
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YouTube MP3/MP4 Downloader (2022)

Python (Pytube) utility with a small JS/jQuery UI for media downloads.

  • Python
  • jQuery
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MVC desktop app (2021)

C# MVC desktop application backed by SQL database.

  • C#
  • SQL Server
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Desktop full stack app (2021)

Java desktop application with MySQL database.

  • Java
  • MySQL
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Astral Fall mobile game (2018)

C# game built in the Unity engine.

  • C#
  • Unity
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Experience & Education

Work & Internships

  • EIK Europe DOO — Part‑timeAug 2025 — Present
    Race management solutions · Hardware‑Software integrations
    RFID timing integrations (C#/.NET) + backend ops
  • Inery — Blockchain systems - Full timeJul 2022 — Present
    C++, Python, NodeJs, Bash, Linux servers, C#, MySQL, MongoDB, Blockchain Decentralized Database
  • ICraft Čačak — InternshipJun 2019 — Jul 2019
    Mobile apps (C, C++)
  • Parking Servis Čačak — Web systemsJan 2018 — Aug 2018
    PHP, MySQL, JavaScript, Linux servers

Education

  • Master’s in Software Engineering
    In progress
  • Faculty of Technical Sciences Čačak — BSc IT
    2019 — 2023 · GPA 9.42
  • Secondary Technical School Čačak — IT
    2015 — 2019 · 5.0

Events

  • Jahorina Tech Conference2024
    Presented a decentralized database solution
  • FON Hackathon2023
    Blockchain mobile app (React‑Native, NodeJS, C++, Eosio contracts) · Theme “well‑being”
  • TMRW Conference — Workshop Speaker2023
    Presented a blockchain multi‑model decentralized database solution