Hi there, I'm Duke

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About Me

Full-stack developer with over 12 years of experience delivering end-to-end solutions spanning backend APIs, mobile applications, web platforms, and Web3 infrastructure. I specialize in TypeScript/NestJS and Python/Flask for backend, Swift/SwiftUI for iOS, Flutter/Dart and Kotlin for cross-platform and Android, React/Next.js for web, and cross-chain DeFi systems across EVM, Solana, Cosmos, and more.

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Key Achievements

Cross-Chain Infrastructure	Swap API serving 500K+ users and $50M+ volume across 20+ bridges and 15+ DEX on 6+ ecosystems
Mobile Publishing	10+ apps on the App Store with 1M+ downloads across music, finance, education, and utility
Web Platform	Swing.xyz monorepo with publishable SDK, React widget library, and multi-chain wallet connectors
Business Platform	Full-stack installment sales system processing 30K+ invoices and 5M+ revenue

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Tech Stack

Backend
Frontend
iOS
Android
Flutter
Web3
Infra

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Featured Projects

Crosschain Swap API 3,862 commits | NestJS, Prisma, Redis Solely architected cross-chain swap API serving 500K+ users and $50M+ volume, routing across 20+ bridges and 15+ DEX aggregators on EVM, Solana, Cosmos, Ton, Sui, and Bitcoin.	Swing.xyz Platform 36 commits | Next.js 15, TurboRepo, React 19 Co-developed the Swing.xyz web3 platform frontend. Built publishable SDK, React widget library, and multi-chain wallet connectors for 7 blockchain ecosystems.
Trading Bot 148 commits | Node.js, Ethers.js, Solana Web3 Automated trading bot optimizing DCA and swing strategies on BSC and Solana with multi-timeframe technical analysis and real-time Telegram alerts.	Bau Cua 2026 70 commits | Flutter, Riverpod, TTS Vietnamese dice game combined with English learning featuring TTS pronunciation, downloadable topic packs, Game Center leaderboards, and in-app purchases.
DP Store 240 commits | Python, Flask, PostgreSQL, Redis Full-stack installment management platform with 14-table schema, 24 API blueprints, Haravan e-commerce sync, and Celery task queues processing 30K+ invoices.	360 Music Pocket 100 commits | Swift, UIKit, Realm Music app with YouTube audio extraction, Google Drive/Dropbox cloud import, WhisperKit AI transcription, and LNPopupController mini-player UX.
YourCam YourImage 44 commits | Flutter, GFPGAN AI, AES-256-CBC AI photo restoration with privacy-first design. AES-256-CBC encrypted vault with streaming encryption, iCloud sync, and biometric lock.	5-Min YouTube Lessons 59 commits | NestJS, BullMQ, OpenAI, FFmpeg Automated video pipeline generating English lessons. Orchestrated content generation, TTS narration, FFmpeg compositing, and auto-publishing to YouTube and TikTok.

See full project portfolio with 19 projects and architecture documentation on mdfalcon-projects.

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GitHub Activity

6,759 total contributions (2022-2025) | 1,981 in 2025 | 2,428 in 2024 | 1,637 in 2023 | 713 in 2022

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Contribution Graph

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Experience

10/2025 - Present   Full-Stack Mobile Developer    Independent (App Store & Google Play)
10/2021 - 10/2025   Full-Stack Developer            Swing Finance (Remote)
01/2017 - 12/2021   Full-Stack Developer & Publisher Independent (App Store & Google Play)
02/2015 - 12/2016   iOS Developer                   GlobalSign.In Pte Ltd (Singapore)
10/2010 - 12/2014   Software Developer              Various Companies (Vietnam)

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Connect With Me

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Building end-to-end solutions, one commit at a time.