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Jason Chau

Senior Software Engineer · Hong Kong

Jason Chau

I design and ship high-availability backends and cloud platforms that stay reliable under real traffic.

40k+
Active users supported
99.9%
Uptime targets on AWS
7+
Years shipping backends
See selected workContact

About

Based in Hong Kong. Focused on systems that hold up.

Senior software engineer with 7+ years building cloud platforms and microservices. I turn messy enterprise requirements into systems teams can run and scale — and I mentor others to do the same.

Open to senior backend / platform roles and selective consulting around cloud architecture and microservices.

Selected work

Outcomes from recent platforms and products

  1. Zlashy Limited

    High-availability microservices platform

    Event-driven backend serving a large active user base across Java Spring Boot, Go, and Node.js services.

    Supported 40,000+ active users with Kafka-backed processing and 99.9% uptime targets on AWS.

    • Java
    • Spring Boot
    • Go
    • Kafka
    • AWS

  2. Buyandship Limited

    Community platform APIs & CMS

    High-throughput Laravel APIs and an internal CMS for a busy community product.

    Lower data-processing latency and faster content operations for the team.

    • Laravel
    • PHP
    • AWS
    • RDS

  3. Digisalad Solution Limited

    Cross-platform GraphQL & REST backends

    Backend architectures connecting mobile and web clients through GraphQL and REST.

    Reliable AWS-hosted APIs with CI/CD via GitHub for client delivery.

    • Node.js
    • GraphQL
    • PHP
    • AWS

Skills

Signature stack

Depth where it matters — not every tool I've ever touched.

Backend

Java / Spring Boot
Go
Node.js (NestJS, Express)
Apache Kafka
REST & GraphQL

Frontend

React
Next.js
TypeScript
Vue.js
Tailwind CSS

Cloud & DevOps

AWS ECS
RDS
Lambda
Cognito
Docker
CI/CD

Data

PostgreSQL
MySQL
MongoDB
Redis
Couchbase

Experience

Professional timeline

  1. Senior Developer · Zlashy Limited

    • 40k+ users
    • 99.9% uptime
    • Led architecture and mentorship across concurrent enterprise projects, with clear code-review standards.
    • Built Java/Spring Boot microservices with Go and Node.js, using Kafka for event-driven workloads.
    • Ran secure AWS environments (ECS, RDS, Lambda, Cognito) and shipped Next.js/NestJS CMS work plus Odoo ERP customizations.

  2. Software Engineer · Buyandship Limited

    • Optimized Laravel APIs for a high-traffic community platform and cut data-processing latency.
    • Shipped a custom Laravel CMS and operated AWS (EC2, Beanstalk, RDS, S3, SQS).

  3. Backend Developer · Digisalad Solution Limited

    • Built Node.js/Express and PHP backends with GraphQL and REST for web and mobile clients.
    • Owned AWS environments and GitHub-based CI/CD.

  4. Web & Software Developer · ESD Services & The Origo

    • Delivered Laravel + React full-stack solutions across enterprise clients.
    • Built plugins, add-ons, and REST integrations for corporate sites.

  5. Software Programmer (Early Career) · CL Technical Services, Midas FMS & Innpression

    • Shipped ASP.NET, PHP, and React web apps; improved SQL Server/MySQL schemas and CRM tooling.

Background

Education & languages

Higher Diploma, Computer Game Development

School of Continuing and Professional Studies, The Chinese University of Hong Kong

2010 – 2013

Spoken
Cantonese (Native) · English · Mandarin
Written
Chinese · English

Contact

Let's talk about your next platform.

Best reached by email or LinkedIn. Happy to discuss senior backend / platform roles or architecture consulting.

Email meLinkedInGitHub

jasonchau1227@gmail.com