
Eric Sia
Senior Full-Stack Engineer
Building scalable end-to-end systems and beautiful web experiences with modern technologies
About Me
Senior Full Stack Engineer (4 years) specializing in scalable enterprise systems using React, Spring Boot, and AWS. Built and supported production platforms serving 100K+ daily requests and multi-country business operations. Experienced in microservices and event-driven architectures, driving improvements in deployment efficiency, system reliability, and production scalability across enterprise workloads and high-traffic systems.
Skills & Technologies
Full-stack expertise across modern development
Frontend
4Backend
5Database
5Cloud & DevOps
5Other
5My Experience
professional journey and key achievements
Senior Executive – Full Stack Engineer
OpenMove AI Bhd
- ▹Architected and delivered enterprise platforms (CommissionSuite) supporting multi-country operations (MY/TH) with 4+ top Thailand insurer clients, processing 300K+ monthly transactions
- ▹Designed system architecture on AWS (ECS/EKS, Lambda, RDS, CloudWatch, CI/CD) and deployed end-to-end solutions
- ▹Introduced event-driven architecture using RabbitMQ and AWS SQS, improving system responsiveness and scalability under high transaction loads
- ▹Led team of 4+ engineers enabling Thailand market expansion and supporting regional franchise operations
- ▹Introduced Docker-based containerization reducing onboarding time by 50-70% and eliminating environment-related deployment issues
- ▹Improved system reliability using AWS CloudWatch logging, reducing production incidents by 30-50%
- ▹Mentored 30+ engineers through structured knowledge-sharing sessions on React, Spring Boot, and AWS architecture
Software Engineer
Plaza Premium Group
- ▹Maintained and enhanced backend microservices using Java Spring Boot, supporting 100K+ daily requests across multiple services
- ▹Maintained loyalty points system with wallet and ledger architecture, supporting secure point tracking and redemption
- ▹Deployed and managed AWS cloud infrastructure using CI/CD pipelines (Jenkins), reducing deployment time by 40-60%
- ▹Resolved high-impact production issue in Smart Traveller React Native app affecting thousands of users
- ▹Led migration of Smart Traveller Admin Portal from Angular 5 to Angular LTS, improving load performance by 30-50%
- ▹Developed feature enhancements for PWA-based POS system, improving transaction processing efficiency by 20-35%
- ▹Built serverless AWS API integration portal for internal and external developers, reducing API onboarding time from days to hours
- ▹Implemented Redis-based queue processing system on AWS EC2, improving background job throughput by 2-3x
IT Intern
Matrixtudios
- ▹Developed Next.js landing page for marketing campaigns, improving page load performance and engagement metrics by 20-40%
- ▹Implemented Zapier + Odoo automation for social media workflows, reducing manual effort by 50-70%
- ▹Supported onboarding and mentoring of junior interns, improving onboarding speed from 2 weeks to 3-5 days
Featured Projects
A showcase of my recent work in frontend development and design

新プル Group - Product Landing Platform
Official landing website with custom domain showcasing developed applications with SEO-optimized responsive design.
新プル Booth - iOS POS System
Mobile POS system for event booth businesses with product management, order tracking, and premium subscription features.

Yvette Cosplay Showcase
Custom-built cosplay portfolio designed based on Yvette's requirements, featuring animated character showcases, smooth transitions, and an immersive anime-inspired UI.

Ameiro 雨いろ - Weather App
Real-time weather monitoring app with worldwide data integration and clean location-based forecast visualization.

Kiro Note 記録ノート - Todo App
Productivity web app for task management with status tracking and responsive design for all devices.
Let's work together
I'm currently open to new opportunities and exciting projects
Ready to bring your ideas to life? Let's create something amazing together.
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