河内 光太
Kohta Kouchi
About Me
4th year student at Gakushuin University, Faculty of Law. Interested in AI and FinTech, studying copyright law and funds settlement law. Working as a full-stack engineer for multiple companies on a contract basis. Released multiple web services individually, gaining over 5,000 total users. Currently working at Mercari, Inc. as an Engineer / PdM, leveraging both engineering and legal knowledge.
Experience
QueryLift
· Mar 2025 - PresentCOO / Board Member
Developing LLM-based analytics tools to ensure valuable brands are properly visible in the GEO (Generative Engine Optimization) era. Handling frontend development, PdM, and design
Mercari, Inc. (Merpay)
· Mar 2025 - PresentPdM (Intern)
Working as PdM for existing service growth team and new service launch team
MediaAid Inc.
· Jul 2024 - PresentNew SNS Development Division
Participating in new SNS business project, handling business side including market analysis, competitive analysis, and user interviews
Google Developers Group Tokyo
· Dec 2023 - PresentOrganizer
Community management and event organizing staff
Simple Inc.
· Sep 2023 - Aug 2024Development Division (Full-time)
Childcare job service development. Service replacement (Vue.js/Laravel → Next.js/Go). Participated from start to release over a year
Simple Inc.
· Jan 2023Engineer (Intern)
Frontend refactoring of core services. Participated from requirements definition and handled partial design
REGAL CORE Inc.
· Sep 2022 - Oct 2022Intern
Corporate site development (Figma/React), database management for in-house services, internal video production
Education
Gakushuin University
· 4th YearFaculty of Law
Copyright Law, Funds Settlement Law, AI & Law
University of People
· EnrolledComputer Science
Computer Science Fundamentals
Tech Stack
Frontend
Backend
Infrastructure
Other
Achievements
- ·Released multiple personal web services (5000+ total users)
- ·Technical support for multiple companies as full-stack developer
- ·Unique perspective combining law and engineering
- ·Management and business development experience at startups
Personal Projects & Portfolio
Reginavi
Oct 2023Gakushuin University festival app. Centralized festival information management to enhance visitor experience
Enter
Sep 2022University student-only engineer community. Platform for technical exchange, information sharing, and event hosting
UFES 2024 -Spring Edition-
Jan 2024 - Apr 2024Planned and organized engineer event for university students. Provided technical exchange opportunities
Multiple Web Services
2022 - PresentReleased multiple personal web services, gaining over 5,000 total users
Community Activities
Promoting interaction and knowledge sharing among engineers through technical community management and event planning.
- ·Google Developers Group Tokyo Organizer
- ·Founded Enter - University Student Engineer Community
- ·UFES (University Engineer Event) Planning & Management
Interests
Future Vision
Aiming to engage in business development while leveraging engineering skills and experience, and to create services that transform people's everyday lives with the knowledge I've cultivated. Believing that law and engineering have high versatility when combined, I continue to challenge myself especially in the FinTech domain.