I’m Full-Stack Developer Wen Liang
Passionate about building modern, user-friendly web applications. Skilled in Java, Node.js, and React with hands-on experience in backend and full-stack projects. Based in Auckland, New Zealand — always open to creative collaborations.
About Me
Hi, I’m Wen Liang, a full-stack developer based in Auckland, New Zealand. I enjoy turning ideas into real digital products that make everyday life easier and more fun.
Over the past few years, I’ve built and maintained web applications using Java, Node.js, and React, focusing on clean code, simple design, and practical solutions. My work often combines solid backend architecture with smooth, responsive user experiences.
I believe that good development is not just about writing code — it’s about understanding people, solving problems, and creating something that truly works.
When I’m not coding, you can probably find me exploring local cafés, fixing computers for fun, or spending time outdoors with my family.
What Projects I’m Working On
Turning ideas into real-world applications.
LuckySpin
A web-based marketing tool that allows businesses to run prize-wheel campaigns with custom rewards, Google login, and multilingual support. Built with Nest.js, React, and PostgreSQL, deployed on Nginx with PM2.
Liquidation Simulator
A backend service that simulates high-volume account settlements for performance testing. Developed using Nest.js and TypeScript, supporting multi-process concurrency and async task distribution.
Next Project – In Progress
Exploring new ideas in data analytics and AI-powered visualization. More updates will be added soon — stay tuned!
Work Experience
Practical experience that shaped how I build and think.
Developing full-stack projects such as LuckySpin (interactive prize-wheel app) and Liquidation Simulator (high-concurrency clearing engine).
Using Nest.js, React, PostgreSQL, and AWS deployments to deliver scalable, production-ready solutions.
Developed a cloud-based forecasting platform for small and medium-sized enterprises (SMEs).
Built the backend with Java Spring Boot and Python FastAPI, and designed an interactive dashboard using Streamlit.
Deployed the full system on AWS (EC2, S3, ECR) with containerization and CI/CD pipelines.
Validated the platform through pilot testing with real SME partners, improving prediction reliability and data handling performance.
China, 2020 - 2023
Led backend development for a low-code automation platform built on Spring Boot / Spring Cloud.
Streamlined CI/CD and code generation to cut setup time by 80%, while handling large-scale API traffic with improved performance and resilience.
Introduced API Gateway + RBAC security and mentored a team of junior engineers.
China, 2017-2020
Refactored and modularized legacy CRM systems for scalability.
Implemented RBAC, batch automation, and external API integrations, reducing manual workload by 30%.
Optimized MySQL / Redis performance to enhance stability and response speed.
China, 2015 - 2017
Built backend modules for an online advertising platform processing hundreds of thousands of daily requests.
Improved response time by 40% through caching and asynchronous pipelines.
Designed ETL data-flow scripts for analytics and recommendation systems.
My Certifications
