10+ years building enterprise ERP systems, global payment platforms, OTT streaming, and healthcare software — leading teams, shipping at scale, and engineering for the long run.
I'm a Software Engineer IV with 10+ years of experience architecting and delivering enterprise-grade systems across global OTA, healthcare, fintech, and media industries. From leading 53-developer teams to shipping SGD 500K+ payment platforms and AI-powered ERP solutions.
Currently at Techzu Ichicode Pte Ltd (Singapore), engineering the Gateway of Asia — an enterprise ERP serving Singapore's largest aircon distributor and 10,000+ B2B clients. I bring full production ownership from architecture decisions and API design to DevOps automation, AI integration, and team mentorship.
Designing scalable, maintainable backend systems
Infrastructure as code, CI/CD, cloud deployments
Building intelligent, AI-augmented applications
Profiling, optimizing, and tuning at scale
A deep, battle-tested skillset forged across a decade of enterprise projects, production systems, and infrastructure challenges.
Designing microservices, event-driven architectures, and domain-driven backends built to last.
CI/CD pipelines, containerized deployments, cloud infrastructure management, zero-downtime releases.
Deep expertise in Laravel, PHP, REST APIs, queues, jobs, and database optimization at scale.
RESTful & GraphQL API architecture, versioning, authentication, rate limiting, and documentation.
Server hardening, Nginx configuration, shell scripting, process management, and log analysis.
LLM integration, AI-augmented workflows, prompt engineering, and intelligent system automation.
Docker Compose, container orchestration, image optimization, and reproducible build pipelines.
Query optimization, caching strategies, profiling bottlenecks, and sub-100ms response targets.
From software engineer to Software Engineer IV — delivering enterprise ERP, global payment platforms, OTT streaming, and healthcare systems across fintech, pharma, media, and government industries.
Architected enterprise ERP for Singapore's largest aircon distributor serving 10,000+ B2B clients with automated workflows. Built AI-powered document management processing 100,000+ documents/day with intelligent OCR search. Engineered WhatsApp Business API handling 50,000+ daily inquiries (90% automation). Integrated payment systems across 5 enterprise apps (SGD 500K+/month, 99.99% uptime). Mentoring 8 engineers with 95% sprint completion rate.
Led 53 developers across multiple technology stacks. Directed development of the Toffee & T Sports OTT streaming platform (Spring Boot, Docker, Kubernetes) handling millions of concurrent users. Oversaw VMS, HRM, and WebRTC video calling solutions. Achieved 30% performance improvement and 20% infrastructure cost reduction. Established CI/CD pipelines and agile practices across all teams.
Designed and built a global payment ecosystem processing 1M+ daily transactions. Integrated NDC Airlines booking, global hotel reservations, and payment gateways across 4 countries (Philippines, Korea, Japan, India) — KakaoPay, Tosspay, Adyen, PayPal, 2C2P. Led microservices migration from monolith to scalable architecture (99.8% success rate).
Architected healthcare and distribution platforms serving 10,000+ pharmacy clients and 800+ mobile field users. Delivered 100% ERP automation across 20+ branches (order management, inventory, HRM, payroll). Built cross-platform IONIC mobile apps, Spring Boot microservices, IoT temperature monitoring (C#, Socket.io), and processed 5,000+ daily healthcare invoices.
Built government, healthcare, and financial solutions at Information Entertainment & Communications Ltd (IECL) — including systems serving 10M+ users and banking platforms handling 10K+ daily requests. Subsequently at Advance Business Solutions (ABSSL), developed Business and Education ERP solutions with CakePHP, Laravel, NodeJS, and Angular.
Real-world systems engineered for performance, reliability, and scale.
Enterprise ERP for Singapore's largest aircon distributor serving 10,000+ B2B clients with fully automated workflows. Integrated WhatsApp Business API handling 50,000+ daily customer inquiries (90% automation rate). Built AI-powered document management processing 100,000+ documents/day with intelligent OCR search. Payment systems across 5 enterprise apps with SGD 500K+ monthly at 99.99% uptime. Construction management for 200+ active sites with real-time monitoring.
Multi-country payment ecosystem processing 1M+ daily transactions across 4 countries (Philippines, Korea, Japan, India). Integrated KakaoPay, Tosspay, Adyen, PayPal, and 2C2P gateways. Built NDC Airlines booking & payment and a global hotel booking platform with multi-currency, multi-gateway support. Microservices migration from monolith architecture with 99.8% payment success rate.
Led development of a high-concurrency OTT streaming platform handling millions of concurrent viewers. Built real-time WebRTC video calling with HD audio/video support alongside the main platform. Architected the Spring Boot backend on Kubernetes orchestration for elastic scaling. Achieved 30% performance improvement through architectural optimization and 20% infrastructure cost reduction via strategic cloud optimization.
End-to-end healthcare and pharma distribution platform serving 10,000+ pharmacy clients and 800+ mobile field reps. Patient & Inventory Management System (PAIMS) with FEFO logic, processing 5,000+ daily invoices. Chemist ordering platform supporting multi-language, 500+ international clients. 100% ERP automation across 20+ branches eliminating all manual processes.
Building and maintaining production-grade infrastructure — from bare-metal Linux to multi-region cloud deployments — with a focus on reliability and security.
Ubuntu/CentOS hardening, user management, cron automation, and performance tuning.
Reverse proxy, load balancing, SSL termination, and virtual host configuration.
GitHub Actions, GitLab CI, zero-downtime deployments, and automated testing gates.
Multi-stage builds, Compose orchestration, container security, and registry management.
SSL/TLS management, firewall rules, secrets handling, and security hardening.
PHP-FPM pools, OPcache, Redis caching, database indexing, and response optimization.
Whether you need a system architect, DevOps engineer, or a senior technical lead — let's connect and discuss what we can build together.
Let's Work Together