Full Stack Developerspecializing in Web3 & Enterprise
Building scalable applications, blockchain solutions, and modern web experiences with 4+ years of professional expertise.
Work Experience
4+ years building innovative solutions across Web3, enterprise systems, and modern web applications
Analyst Programmer
Developed construction management systems and digital solutions for large-scale infrastructure projects
Key Achievements
- Built project management dashboard for tracking construction progress
- Implemented IoT integration for real-time equipment monitoring
- Developed mobile applications for field workers
- Developed concrete web and mobile app for managing concrete production
Tech Stack
IT Consultant
Developed comprehensive management system for traditional Chinese medicine practitioners
Key Achievements
- Developed pipeline for auto deployment using Github Actions and Task-definition
- Built patient management system with appointment real-time scheduling
- Integrated a real-time WhatsApp API with a web platform, enabling secure officer-client communication (with attachments and stickers) and automated user notifications.
- Implemented prescription management and herbal inventory tracking
Tech Stack
Senior Software Engineer
Leading Web3 infrastructure development and blockchain solutions
Key Achievements
- Built open-sourced Web3 resolver with Redis cache optimization
- Developed RPA system for cloud alerting with Puppeteer
- Created mini framework for IAC library using Pulumi
- Built multi-chain infrastructure e-commerce platform
Tech Stack
Software Developer
Developed enterprise automation solutions and backend systems
Key Achievements
- Built comprehensive RPA system for automated order processing
- Implemented backend system using Nest.js and Puppeteer
- Deployed solutions using Docker containers on AWS
- Designed message queue system for data transfer optimization
Tech Stack
Full Stack Developer
Modernized internal systems from monolithic to microservices architecture
Key Achievements
- Restructured monolithic system to microservices architecture
- Set up Kubernetes cluster for service orchestration
- Implemented SSO using Keycloak with custom GoLang plugins
- Developed passenger guidance app with AR navigation
Tech Stack
Frontend Developer
Developed event registration systems and admin CMS panels
Key Achievements
- Built comprehensive event registration system
- Optimized admin panel loading time from 2+ minutes to 30 seconds
- Implemented efficient data structures for large dataset handling
- Developed responsive frontend using Vue.js and Nuxt.js
Tech Stack
Skills & Technologies
Comprehensive expertise across the full stack, from frontend to blockchain
Core Languages
Frontend
Backend
Cloud & DevOps
Database
Mobile
Web3
Game Dev
Featured Projects
Impactful solutions spanning Web3, enterprise systems, and modern applications
Digital Works Supervision System
Digital transformation project for construction site management, providing real-time visibility into project progress, equipment status, and worker safety metrics.
Chinese Medicine Management System
Comprehensive practice management system for traditional Chinese medicine practitioners, featuring patient records, prescription management, and billing integration.
Web3 Credit Card Application
Built a web3 credit card application with a focus on user experience and security.
Open-sourced Web3 Resolver
Built a high-performance Web3 domain name resolver to bridge traditional web and blockchain ecosystems, enabling seamless integration between Web2 and Web3 applications.
RPA Cloud Alerting System
Automated cloud infrastructure monitoring and alerting system using robotic process automation to handle thousands of cloud accounts across multiple providers.
Microservices IAC Framework
Created a mini-framework for Infrastructure as Code (IAC) to simplify and standardize cloud resource management across multiple projects and environments.
Web3 Multi-chain E-commerce Platform
Built a comprehensive e-commerce platform for blockchain domains supporting multiple chains including Ethereum, Polygon, and BSC with advanced promotion and discount systems.
Metadata Migration System
Large-scale serverless application for migrating and transforming millions of NFT metadata records with image processing and format conversion capabilities.
Enterprise RPA Order System
Comprehensive robotic process automation system for automating order processing across multiple e-commerce platforms, reducing manual work and improving accuracy.
AR Navigation Mobile App
Innovative passenger guidance application with augmented reality features for helping visitors navigate large temple complex with real-time directions and information.
Microservices Temple Management System
Complete digital transformation of temple operations from monolithic to microservices architecture, supporting both internal operations and public services.
High-Performance Event Registration System
Large-scale event management platform handling massive user registrations with optimized performance and admin management capabilities.
Auto Chess Game
Auto chess game developed for IVE FYP, featuring complex AI strategies, multiplayer functionality, and spectator mode.
Certifications & Achievements
Industry-recognized certifications and awards demonstrating expertise and excellence
AWS Certified Solutions Architect – Associate
Amazon Web Services (AWS)
Validates expertise in designing distributed systems on AWS with focus on scalability, security, and cost optimization. Issued Sep 2024 • Expires Sep 2027
AWS Certified Developer – Associate
Amazon Web Services (AWS)
Demonstrates proficiency in developing, deploying, and debugging cloud-based applications using AWS. Issued Jul 2024 • Expires Jul 2027
HCCDA – Tech Essentials
Huawei Cloud APAC
Huawei Cloud Computing fundamentals and technical essentials certification. Issued May 2024 • Expires May 2027
AWS Certified Cloud Practitioner
Amazon Web Services (AWS)
Foundational understanding of AWS Cloud concepts, services, and terminology. Issued Jul 2023 • Expires Jul 2026
App Development with Swift Certified User
Apple
Certification in iOS app development using Swift programming language and Apple development tools. Issued Dec 2022
Notable Achievements
WorldSkills Competition 2022 Special Edition - Champion
InternationalWon the championship in Web Technologies at the WorldSkills Competition 2022 Special Edition, representing the highest level of technical skills in web development on the international stage.
2022 Hackathon - Champion
CorporateWon first place at Cathay Pacific's 2022 Hackathon, developing innovative solutions for the aviation industry.
2022 Mobile Application Innovation Contest - First Runner Up
CorporateAchieved first runner-up position in Apple's 2022 Mobile Application Innovation Contest, showcasing outstanding iOS development skills.
Distinction Award
InstituteAchieved Distinction in Higher Diploma in Game Software Development at Hong Kong IVE, demonstrating excellence in game development and programming.
Open Source Contributor
ProfessionalDeveloped and open-sourced Web3 resolver SDK, contributing to the blockchain development community and enabling other developers to build better decentralized applications.
What People Say
Feedback from colleagues and clients I've had the pleasure of working with
“John's expertise in Web3 and blockchain development is exceptional. He built our resolver system with impressive attention to detail and performance optimization. His ability to handle complex infrastructure challenges while maintaining clean, maintainable code is remarkable.”
Michael Chen
Engineering Manager at EDNS
“Working with John on our construction management platform was a great experience. He brought innovative solutions to our field worker mobile apps and IoT integrations. His proactive approach to problem-solving and clear communication made collaboration seamless.”
Sarah Wong
Product Manager at Gammon Construction
“John significantly improved our RPA automation systems, reducing processing latency by implementing a sophisticated worker/master architecture. His deep understanding of backend systems and message queues was invaluable to our team.”
David Lau
CTO at SenMedia