Designed, developed, and deployed Spring Boot-based microservice to take payment via WeChat Pay and Alipay for existing catering system. Documented all interfaces following Open API specifications.

Developed WeChat Mini Program-based frontend module to facilitate payment.

• Co-designed and implemented frontend for AI video understanding system using Svelte and SvelteKit. Refactored over 5000 lines of existing code to adopt a functional style and reduce average component size by more than half.

• Audited and overhauled database to achieve 2NF database normalization, reducing data-related debugging time by 90% and enabling extension of video length limit by 10x.

Co-produced grading scripts for Software Development Methods with 500+ students. Headed lab activities that supplement lectures. Mentored 4 cohorts of 3-4 people each. Held office hours 2 hours per week to answer student questions and to articulate key concepts.