Projects

Selected work — backend systems, full-stack products, and this site. Each block summarizes what shipped.

Founder & Full-Stack Developer · Own venture

Jan 2026 – Present · React · TypeScript · PostgreSQL · Vercel · Cloudflare · Supabase · Shopify

Live site GitHub

What I shipped

Built and deployed a production e-commerce storefront in React and TypeScript that leverages a Shopify hosted checkout for payment, with product launch target date of Dec 2026
Designed a scalable frontend architecture using re-usable layouts, modals, and state management techniques, enabling ~70% code sharing and efficient creation of new features
Implemented centralized cart state management using React Context and localStorage that allows real-time cart data sharing between different parts of the frontend (Navbar, product page, cart, overlays, etc.)
Configured CI/CD and production deployment through Vercel, Cloudflare DNS, and GitHub automation, and integrated analytics to optimize frontend performance and support early user testing with 100+ visitors
Designed and developed backend systems using Supabase (PostgreSQL) and Vercel Functions, implementing authentication, relational schema design, and caching strategies

Backend Developer

Aug 2025 – Nov 2025 · Node.js · Express · TypeScript · MongoDB · Mongoose · Jest

GitHub

What I shipped

Designed and implemented a Question Service microservice within a distributed 6-service architecture using Node.js, Express, and TypeScript, owning question CRUD operations and randomized selection functionality
Developed 15 RESTful API endpoints for filtering, metadata queries, and dynamic question retrieval
Incorporated input validation, standardized error handling (400/404/409/500), and Mongoose-based schema design to ensure API reliability and data integrity
Built MongoDB aggregation pipelines using $match and $sample to enable efficient randomized question selection with optional filtering, reducing application-layer logic
Processed and transformed 26K+ TACO dataset records into 325 structured coding questions using Python, cleaning, deduplicating, and structuring the data
Wrote 35 automated tests using Jest and Supertest (66%+ coverage), including unit and integration tests validating CRUD workflows and aggregation pipelines

Full-Stack Developer · Apollo 11 (Advanced)

May 2024 – Jul 2024 · MongoDB · Express · React · Node.js · NUSMods API

GitHub

What I shipped

Developed a full-stack MERN application for NUS students to create and discover study groups, integrating real-time course data from the NUSMods API to support course-based group matching
Built RESTful APIs using Node.js and Express with session-based authentication (express-session, bcrypt) and MVC architecture, designing MongoDB schemas for users, groups, and memberships to ensure data integrity
Integrated the NUSMods API, parsing nested timetable data (20–50+ entries per module) into structured formats, and implementing multi-criteria sorting (lesson type, day, time, class number) and search functionality
Developed a responsive React frontend with dynamic data fetching, real-time validation (Formik), and improved UX through loading states and error handling