Presentation
Inventory and Stock Management: Designing efficient data structures and logic for real-time stock flow and multi-channel synchronization.
Payment Gateway Integration: Successfully integrating and managing various payment providers (e.g., Stripe, Payme, Recon) within secure, high-performance web environments.
Scalable Architecture: Ensuring applications remain fast and stable under heavy traffic loads through optimized database queries and server-side logic.
Specialized Feature Development: Implementing core functionalities such as event submission and registration systems, which are critical for the education and health service sectors.
Technical SEO Development: Implementing SEO requirements at the code level, including schema markup generation, dynamic sitemaps, and performance-driven optimizations to improve search visibility.
I am highly confident in my ability to manage complex business logic and deliver reliable, high-quality code. This is a critical opportunity for me, and I can promise you my unwavering dedication and a strong work ethic. I am prepared to dedicate myself fully to excelling in this role and contributing to your team's success.
Portfolio
Background
commerce, corporate, and ERP web platforms for regional clients across Singapore
and Hong Kong.
• Led full-stack development for over 8 enterprise web projects including WKPet,
Sau Tao, HashKey Group, HealthySeed and TMDHC, using Laravel, Vue.js, and
RESTful API architecture.
• Translated user requirements and Figma wireframes into responsive, production-
ready systems, shortening the design-to-release cycle from two weeks to about
10 days through improved sprint planning.
• Designed and normalized relational databases supporting multi-store and multilingual sites; improved data integrity and cut import error rates by over 90%.
• Optimized RESTful API endpoints and backend logic for high-traffic modules,
improving response time from around 400 ms to 160 ms and enhancing overall page speed and SEO ranking.
• Integrated and maintained multiple payment gateways (Stripe, PayMe, ReCon),
developed automated reconciliation jobs, resulting in noticeably fewer failed
transactions and smoother payment processing.
• Managed AWS EC2 deployments, automated nightly S3 backups, and applied
security hardening, improving system recovery speed and minimizing downtime
for production web applications.
• Supervised and mentored two junior developers, conducted code reviews, and established CI/CD pipelines on GitLab, improving code quality and reducing
post-release issues
hotel reservation services.
• Developed and maintained web-based booking platforms (Laravel, Vue.js) integrating flights, tours, and hotels for over over
10K annual users.
• Built RESTful APIs to connect the booking portal with internal ERP modules, automating synchronization to reduce manual
entry and speed up reconciliation.
• Designed and implemented dynamic tour scheduling, pricing, and availability systems, streamlining update processes to
ensure tour information and pricing changes were deployed on the same day they were approved.
• Integrated Google Maps API for pickup location tracking and trip routing, reducing daily customer inquiries and improving
booking accuracy.
• Upgraded legacy PHP modules for performance and UI consistency; achieved an average 30 - 50% faster load time after
optimization.
• Created online refund, cancellation, and payment retry workflows, cutting failed transaction resolution time to under 2 hours
on average.
• Delivered internal training and comprehensive user guides for operations and sales teams, accelerating system adoption
and onboarding for new staff.
• Assisted senior developers in full-stack delivery of CMS and portal projects using Laravel, Bootstrap, and jQuery.
• Participated in database schema design and API development for user authentication, product, and news modules.
• Developed and maintained front-end templates and admin dashboards, improving UX consistency across multiple client
sites.
• Implemented reusable code components that reduced repetitive coding tasks.
• Provided testing, bug fixes, and production deployment using cPanel and Nginx environments.
• Supported client technical inquiries and post-launch maintenance, ensuring 100% SLA compliance during tenure.
Business System Analysis
Business System Design
E-Commerce Security
Essential of Web Development
Javascript/JQuery
Database Management System (SQL Server)
Dynamic Web Development (PHP)
Dynamic Web Development with Practical Project

