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Full-Stack Developer with 7+ years of experience building production web applications, including government-scale platforms and high-performance payment and wallet systems. Deep expertise in Go, TypeScript, and PostgreSQL, with production work across React/Next.js, Rust, Node.js, and PHP. I’ve led system architecture, built role-based admin dashboards and citizen-facing web apps, migrated legacy systems to modern stacks, and integrated payment gateways for government digital services. I’m strong in REST and gRPC API design, relational schema design, and AWS infrastructure, with a focus on security, testing, and performance.…Full-Stack Developer with 7+ years of experience building production web applications, including government-scale platforms and high-performance payment and wallet systems. Deep expertise in Go, TypeScript, and PostgreSQL, with production work across React/Next.js, Rust, Node.js, and PHP. I’ve led system architecture, built role-based admin dashboards and citizen-facing web apps, migrated legacy systems to modern stacks, and integrated payment gateways for government digital services. I’m strong in REST and gRPC API design, relational schema design, and AWS infrastructure, with a focus on security, testing, and performance.

CHIA DING ZHOU

Full Stack Developer, Web Developer, Back-End Developer, +2

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Full-Stack Developer with 7+ years of experience building production web applications, including government-scale platforms and high-performance payment and wallet systems. Deep expertise in Go, TypeScript, and PostgreSQL, with production work across React/Next.js, Rust, Node.js, and PHP. I’ve led system architecture, built role-based admin dashboards and citizen-facing web apps, migrated legacy systems to modern stacks, and integrated payment gateways for government digital services. I’m strong in REST and gRPC API design, relational schema design, and AWS infrastructure, with a focus on security, testing, and performance.…Full-Stack Developer with 7+ years of experience building production web applications, including government-scale platforms and high-performance payment and wallet systems. Deep expertise in Go, TypeScript, and PostgreSQL, with production work across React/Next.js, Rust, Node.js, and PHP. I’ve led system architecture, built role-based admin dashboards and citizen-facing web apps, migrated legacy systems to modern stacks, and integrated payment gateways for government digital services. I’m strong in REST and gRPC API design, relational schema design, and AWS infrastructure, with a focus on security, testing, and performance.

Available to hire

Full-Stack Developer with 7+ years of experience building production web applications, including government-scale platforms and high-performance payment and wallet systems. Deep expertise in Go, TypeScript, and PostgreSQL, with production work across React/Next.js, Rust, Node.js, and PHP.

I’ve led system architecture, built role-based admin dashboards and citizen-facing web apps, migrated legacy systems to modern stacks, and integrated payment gateways for government digital services. I’m strong in REST and gRPC API design, relational schema design, and AWS infrastructure, with a focus on security, testing, and performance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Beginner

Language

English

Advanced

Chinese

Advanced

Work Experience

Full-Stack Developer at GovTech Singapore

February 1, 2023 - March 1, 2026

GovWallet: Built the GovWallet Collection module end-to-end in Go and PostgreSQL, integrating multiple payment gateways via hosted checkout redirect flow for government agency-to-citizen payments. Developed a role-based access control (RBAC) admin dashboard in Next.js with 6 permission levels for government operators. Implemented citizen-facing Next.js flows for wallet balance viewing, credit redemption, and payment checkout. Built credit disbursement and clawback workflows to distribute and recover digital wallet credits across beneficiary accounts for national social assistance programs. Added transaction querying/reporting and merchant UEN blacklisting/whitelisting within the admin portal. Ensured quality using Playwright end-to-end testing, API integration tests, and K6 load testing in production-like environments. GovSupply: Led architecture and development of a new Go-based inventory management system, migrating from TypeScript/Serverless/DynamoDB to Go and PostgreSQL to support

Full-Stack Developer at Turing Technology Sdn Bhd

August 1, 2021 - January 1, 2023

Delivered full-stack software products for multiple client engagements and an in-house product as part of a small team, owning technical decisions from design through deployment. Collaborated with cross-functional teams to translate requirements into technical specifications and refine development processes. Alpha MasterClass: Built real-time stock market simulation backend using Node.js, Socket.io, and MySQL for multiplayer trading scenarios. Developed a React.js CMS for admin management of market data, simulations, and user accounts. Improved backend performance by tuning queries and caching, achieving 50%+ API response time reduction. (Other listed projects not fully detailed in resume.)

Junior Web Developer at Massive Infinity Pte Ltd

June 1, 2019 - July 1, 2021

Delivered multiple RealTech and EduTech full-stack applications from initial design through production deployment using Agile/Scrum. Developed secure, production-ready code following OWASP security practices and established design patterns. Partnered with Project Management to provide accurate development estimates and assess feature feasibility. (Additional specific project details are present in the resume but not fully described beyond brief mentions.)