Hi, I'mStefanBlagojević

Full Stack & Mobile Developer

Belgrade, Serbia

My journey into web development started with a practical desire: to build applications that I could use with my friends. This hobby grew into a deep interest in crafting seamless digital experiences, leading me to teach myself modern technologies like React and Next.js. I am excited to apply my self-driven and detail-oriented approach to a professional development role.

Professional Work Experience

Mobile App Developer

Contract

Oct 2025 - Dec 2025

  • The Project: Engineered a high-security system from scratch using React Native and Expo.
  • Complex UI: Delivered 12+ screens with camera-based QR scanning and dynamic policy rendering.
  • Offline-First Architecture: Built a custom sync engine with local RSA cryptography for zero-connectivity environments.
  • Managed the entire mobile lifecycle, from strict TypeScript architecture to asset pipelines.

Featured Project

A deep dive into my most complex and feature-rich application.

Screenshot of Meowspace

Meowspace

Meowspace is a production-grade social ecosystem powered by a centralized Firebase backend for our Mobile, Web, and dedicated Chat platforms.

The Architecture

  • Mobile-First Design: Optimized for high performance on iOS and Android using React Native and Expo.
  • Microservice Integration: Features a seamless "MeowChat" integration. This Node.js service merges Firebase users via iframe microservices to provide instant, zero-login messaging for Meowspace accounts.
  • Cross-Platform Core: While the Web client is currently in early-stage development, the shared backend infrastructure ensures a unified user experience across all devices.

Key Mobile Features

  • Performance: Optimized infinite feed with lazy-loading and pagination.
  • UX: Real-time Optimistic UI for instant likes and comments.
  • Social: Recursive comment threads and real-time private messaging.
  • Engagement: Native push notifications for likes, follows, and messages.
  • Security: Comprehensive user management including blocking, reporting, and secure auth.
  • Smooth Loading: Animated skeleton states for load times.
Meowspace Play Store Listing

My Tech Stack

Frontend

JavaScript
TypeScript
React
React Native
Expo
Next.js
HTML5
CSS3
Tailwind
SASS

Backend

Node.js
Express.js
MongoDB
Socket.IO

Software Tools

Firebase
Cloudinary
GitHub
Git

Design & Workflow

Figma
Photoshop
Jira
Trello