A collection of web applications and programs I have built.
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A web application for centralized management of tutors and students' learning progress.
Birdman project of WASA, Waseda University's aerospace research club. Served as Project Manager leading a ~60-member team while building main and tail wings. Achieved runner-up with a 15+ km flight in the first year.
A full-stack hotel reservation web app (design-driven by UML OOAD) covering everything from booking to checkout. In a 6-person team, I owned the DB schema, API/business logic, and a read-only chat assistant built on LLM function calling.
A system for fast fuzzy string search (edit distance ≤ 3) over one million records. Implemented hierarchical filtering and Myers' bit-parallel algorithm in C, achieving 100% precision with optimized execution speed.