Qoineer

A hedge-optimized trading app for simultaneous long/short grid strategies, built for high-concurrency crypto markets.

Full-stack developer & designer

• Node.js
• Dart
• Flutter
• Firestore
• Binance API

• ✓Designed and built a responsive web and mobile app for trade signals, using grid strategies for simultaneous long and short positions.
• ✓Built the backend in a mix of Node.js and Dart, with a Flutter frontend and real-time updates through Firestore.
• ✓Integrated the Binance API for live crypto market data, with transactional consistency guaranteed across trades.
• ✓Reached production-readiness for high-concurrency, diverse trading scenarios.