Hi, I'm
Jason Chau
Senior Software Engineer
Architecting high-availability cloud platforms, microservices, and high-traffic web systems with Go, Node.js, React/Next.js, and AWS.
About
Results-driven Senior Software Engineer with over 7 years of experience architecting high-availability cloud platforms, microservices, and high-traffic web systems. Specialized in Go (Golang), Node.js (NestJS/Express), React/Next.js, and AWS cloud infrastructure. Proven track record in translating complex enterprise business requirements into robust scalable applications supporting 40,000+ active users. Strong leader skilled in technical architecture, AI-assisted development workflows, and cross-functional team mentorship.
Skills
Backend & Microservices
Frontend Engineering
Cloud & DevOps
Databases & Tools
Experience
Senior Developer · Zlashy Limited
Apr 2025 – Present- –Directed technical strategy and system architecture for enterprise applications, translating complex business requirements into high-performance cloud solutions. Mentored junior/mid developers and established strict code review standards.
- –Architected scalable backend microservices using Go, Node.js (Express), and Apache Kafka for event-driven processing, supporting over 40,000 active users with high reliability.
- –Provisioned and managed secure, cloud-native environments utilizing AWS ECS, RDS, Lambda, and Cognito to ensure 99.9% uptime and zero-trust authentication.
- –Leveraged advanced AI coding agents (such as Cursor) to accelerate development velocity, refactoring, and test coverage. Engineered modern CMS platforms and web applications using Next.js and NestJS, and customized enterprise Odoo ERP modules using Python.
Software Engineer · Buyandship Limited
May 2024 – Oct 2024- –Engineered and optimized high-throughput backend RESTful APIs for a high-traffic community platform using PHP Laravel, reducing data processing latency.
- –Architected a custom Content Management System (CMS) in Laravel to streamline internal content management workflows.
- –Deployed and maintained cloud infrastructure utilizing AWS services (EC2, Elastic Beanstalk, RDS, S3, SQS).
Backend Developer · Digisalad Solution Limited
Mar 2023 – Mar 2024- –Built scalable backend architectures for client applications using Node.js, Express, and PHP.
- –Designed and integrated GraphQL and RESTful APIs, enabling seamless cross-platform mobile and web communications.
- –Managed AWS environments (EC2, Beanstalk, RDS) and maintained CI/CD workflows via Git/GitHub.
Web & Software Developer (Contract / Agency) · ESD Services & The Origo
Jul 2021 – Jan 2023- –Delivered end-to-end full-stack web solutions using Laravel and modern React.js frontend components across multiple enterprise projects.
- –Developed custom plugins, specialized add-ons, and RESTful integrations for corporate clients.
Software Programmer (Early Career Roles) · CL Technical Services, Midas FMS & Innpression
Oct 2018 – Jul 2021- –Developed interactive web applications using C# ASP.NET, PHP, jQuery, and React JS.
- –Managed SQL Server and MySQL database optimization, schema design, and internal CRM upgrades.
Education
Higher Diploma, Computer Game Development
School of Continuing and Professional Studies, The Chinese University of Hong Kong
2010 – 2013
Languages
Spoken: Cantonese, English, Mandarin
Written: Chinese, English
Contact
Have a project in mind, or just want to say hi? I'd love to hear from you.