Design and development portfolio

Software Engineer

ST Engineering

Developing a full-stack Capstone Management System with secure authentication, role-based access, application planning, and task workflows. Building and validating the React, REST API, and MySQL layers, with reviewed AI-assisted implementation and automated API testing.

React · Node.js · Express.js · MySQL · REST APIs · Postman · Git/GitHub · AI Coding Agents

Software Engineering Intern

Inland Revenue Authority of Singapore (IRAS)

Supported the cloud migration of Corporate Tax systems through end-to-end integration testing, API validation, and SQL test-data preparation. Investigated defects with developers and business analysts to verify backend behaviour against business requirements.

Microsoft Azure · Azure DevOps · SQL Server Management Studio · Postman

Full-Stack E-Commerce System

Built an end-to-end e-commerce system with session-based carts, server-side order processing, and database-authoritative pricing. Implemented validated checkout endpoints, prepared SQL statements, and an admin interface for orders and inventory.

PHP · MySQL · JavaScript · React

Smart Floor Human Activity Monitoring System

Developed a modular pipeline that turns floor-sensor data into real-time activity classifications. Integrated SQLite logging, interchangeable machine-learning models, fallback logic, and output smoothing; deployed and tested on a Raspberry Pi for offline inference.

Python · SQLite · Machine Learning · Raspberry Pi

Image Classification Benchmarking System

Built a benchmarking framework comparing a custom CNN with transfer learning across Cats vs Dogs and CIFAR-10. Structured preprocessing and augmentation, evaluated accuracy and training efficiency, and tuned experiments for reproducibility and imbalanced data.

CNN Architectures & Evaluation · TinyVGG · ResNet34