Designed and built a full-stack internal lottery system using Python (Flask) to replace a manual, paper-based raffle. Implemented RESTful APIs for weighted prize draws, atomic inventory deduction, and user point accounting; built and optimized MySQL schemas and transactional queries to prevent double-draws and overselling; deployed the service to AWS EC2 for production use; improved reconciliation and reduced manual workload.

Software Engineer at Phase Connect Inc.

September 1, 2025 - December 1, 2025

Lottery Web Application: developed a full-stack lottery web app for internal use (Sept 2025 – Dec 2025). Implemented weighted prize draws, inventory/points consistency, and production-grade APIs; deployed to AWS EC2 and optimized for multi-department use.

Software Engineer at Phase Connect Inc.

March 1, 2025 - September 1, 2025

ARG Web Game: developed a full-stack interactive Alternate Reality Game (ARG) using MERN stack for a marketing campaign; implemented per-user transient game state with Redis caching, daily checkpoints, and TTL; optimized for latency and scalability with CDN/Nginx reverse proxy; supported 1,000+ users with 40% latency reduction.

Software Engineer at Phase Connect Inc.

October 1, 2024 - March 1, 2025

Warehouse Management System: collaborated with a team to design and implement a Java Spring Boot backend supporting ~1,000 SKUs and 80-150 orders/day; built a reporting service with JPA/Hibernate; optimized SQL and indexing; increased test coverage to ~85% (JUnit, Mockito).

Full-Stack E-Commerce Platform at Independent / Personal Project

January 1, 2022 - May 1, 2022

Built an end-to-end e-commerce workflow using MERN (authentication, product listing, cart checkout, and Stripe payments); created a responsive React frontend with centralized state management to ensure cart and order state consistency across page refreshes; developed RESTful APIs for product listing, checkout, and order processing.