Kosuke
Kumamoto
Third year BA Computer Science student at University of British Columbia. Worked as a Software Engineer at NAXA Co., Ltd. as an internship. Founder of TokyoQuest, HHU.
SELECTED WORKS
Season 2025/26 - Record Breaking Builds
Transfer Roadmap:Kosuke Kumamoto's Journey
Bayridge Secondary School
Kingstone ON, Canada
Moved to Canada from Japan at age of 15 alone and lived with host family for 3 years.
UBC BA Computer Science
Vancouver, BC, Canada
After 1 year of gap year, I moved to Vancouver to study Computer Science at UBC.
NAXA Co., Ltd. SWE
Tokyo, Japan
Came back to Japan to work as a Software Engineer at NAXA Co., Ltd. as an internship
Transfer to new company as an intern
Unknown
Seeking to find a new job as an intern, will be Free Transfer
Happy Hour University
Ephemeral student matching app — university-email signup, course queues, private realtime chat, and post-match grading.
Software Engineer Intern at Naxa Inc.
Tokyo internship: Twilio outbound-call MVP, AWS EC2 + Terragrunt operator desktops, and Next.js sites and admin dashboards.
Walking Tour Guide — Tokyo
Two-and-a-half years of small-group Shibuya walking tours on Guruwalk for international travelers — 1000+ guests, top-rated in Summer 2023.
UBC — BA in Computer Science
BA in Computer Science at UBC (Sep 2023 – Apr 2028) — broad coursework spanning systems, algorithms, databases, software engineering, and graphics.
TokyoQuest
Gamified Tokyo travel app: Google sign-in, paginated quests, photo/video proof, EXP, saved quests, and unlockable stories.
Volunteer Work
Two 2022 volunteer programs: a school-led Ukraine humanitarian fundraiser, and forest restoration with NPO NICE in Ober-Olm, Germany.
ABOUT ME
I'm a third-year Computer Science student at UBC and a software engineer intern at Naxa Inc. in Tokyo. I focus on building full-stack web products that go beyond demos — things with real users, real data, and real deadlines.
At Naxa, I work across the stack with Next.js, AWS, and weekly agile sprints. I've rebuilt the company site with Server Components and atomic design, prototyped a Twilio outbound-calling MVP in three days that helped unlock a ¥50M development budget, and set up an automated EC2 environment with Terragrunt that improved partner-company operator efficiency by around 50% in tester evaluations.
Outside of work, I ship solo projects end-to-end. TokyoQuest — a live RPG-style travel app for Tokyo built on Next.js, Supabase, and Vercel — and UBC Buddies, a realtime social matching app with a Django REST + Next.js stack hardened with nonce validation and CSRF protection.