Andrija Gajić

Software Engineer | Mobile Front-End, Crypto

📍 Belgrade, Serbia

🟢Aping In

Crypto Mobile Developer with 5+ years of experience building and scaling mobile-first crypto products across consumer trading platforms and regulated fintech systems. Strong expertise in React Native, TypeScript, Node.js, AWS, and blockchain integrations (Solana, Web3.js). Specialized in mobile crypto UX, real-time trading interfaces, wallet integrations, and KYC-aware architectures.

Work Preferences

Salary

USD 120,000

Skills

Expo10/10

Mobile Architecture & Performance10/10

React Native10/10

EAS (Expo Application Services)10/10

TypeScript9/10

Node.js (8/10)PostgreSQL (8/10)React (8/10)Redis (8/10)WebSockets (8/10)AWS Lambda (8/10)AWS S3 / CloudFront (8/10)Firebase (8/10)KYC Integration (8/10)Supabase (8/10)Web3.js (8/10)AWS (7/10)Smart Contract Testing (Anchor) (7/10)NoSQL (6/10)Solana (4/10)

Work Experience

Founding Engineer

Movement Market

Jan 2025 — Present

Built a US-backed consumer crypto platform for safer retail memecoin trading. Contributed across mobile, backend, and blockchain layers. Built KYC flows, trading UX, presale integrations, real-time trading interfaces, candlestick charts, social features, referral systems, and admin tooling. Migrated infrastructure from Firebase to AWS, switched wallet providers from Magic to Turnkey, and validated Solana/Anchor smart contracts.

Lead Mobile Developer

EAAS GLOBAL

May 2024 — Jan 2025

Led mobile development at a $1.7M-funded climate-tech startup building a regulated CO2-tracking and rewards mobile platform. Led a team of 3 mobile developers, implemented Google and Apple OAuth flows, pixel-perfect React Native UI, and contributed to BNB-based Web3 reward mechanics for a planned Bybit exchange listing.

Education

University of Novi Sad

BSc · Information Technology

2018 – 2022