Jason Leung

Owns architecture and technical direction for backend services on AWS for a multi-tenant platform serving 500+ organizations at 99.9% availability. Built a production LLM feature end to end and mentored engineers through design and code review.

Designed and led the decomposition of a monolith into a modular, event-driven microservices architecture using Spring Boot, Spring Cloud, and RabbitMQ. Engineered distributed data extraction and processing pipelines handling daily market datasets at scale.

Led engineering for 4 cross-platform mobile games with 1M+ downloads and mentored the team. Built scalable SaaS backend architecture on Node.js, Elasticsearch, Kibana, MongoDB, and AWS EC2 with real-time telemetry pipelines.

Led a team of 7 engineers to revamp the high-traffic web portal for the Public Library of Hong Kong. Executed large-scale legacy database migrations to modern relational schemas with zero downtime.

Architected a web-based subscriber billing and package-management system for high-volume video-on-demand services. Developed RESTful APIs and integrated payment-gateway services for secure online subscription processing.

Built loan management and regulatory compliance systems for Bank of China on a Java/DB2 stack.

Developed software for the company's video-on-demand services, contributing to billing and package management systems.

Developed a web-based insurance policy and client management platform (CRM-style) using PHP and Symfony.

Built backend services for social gaming platforms using PHP and Symfony.

Master of Philosophy in Automation & Computer-Aided Engineering from The Chinese University of Hong Kong, completed in 2002.

Bachelor of Engineering in Mechanical & Automation Engineering from The Chinese University of Hong Kong, completed in 2000.