Freelance Engineer / WorldSkills Expert Based in Tokyo, Japan
Full-stack Engineer - Freelance Full-stack Engineer. Served as Tech Lead for over 12 new Web service developments, specializing in frontend development built on a backend foundation. WorldSkills Expert - Competed in WorldSkills 2015 as a representative of Japan. Served as a Technical Expert in competition management at the 2022 South Korea and 2024 France competitions, and actively nurtures the next generation of Web engineers globally. Book Author - 'React Textbook for Never Giving Up: Learning Web Development by Building' (SB Creative) to be published in 2026.
Authored Book: 'React Textbook for Never Giving Up: Learning Web Development by Building'
Co-authored an introductory book on React explaining from basics to practical application development. Published by SB Creative.
WorldSkills Expert
/ 2025
WorldSkillsAsia 2025 Taiwan
Served as an expert (judge) for the 'Web Technologies' trade at the competition in Taiwan.
Judge
/ 2025
National Skills Competition
Served as Judge and Task Creator (6th).
Judge
/ 2025
National Skills Competition for Young Workers
Served as Judge and Task Creator (8th).
Lead Engineer
/ 2024
Sightseeing Tour Service
Participated as a technical advisor and tech lead. Responsible for backend, frontend, and infrastructure.
Lead Engineer
/ 2024
Interview Proxy Service
Responsible for backend and infrastructure construction as a tech lead.
Lead Engineer
/ 2024
Welfare Misuse Prevention Service
Tech lead for new development using Nuxt3/Google Cloud.
WorldSkills Expert
/ 2024
WorldSkills 2024 Lyon
Served as an expert (judge) for the 'Web Technologies' trade at the world competition in France.
Lead Engineer
/ 2023
Fitness Gym Reservation App
Backend tech lead for a reservation management system using ReactNative/NestJS.
Speaker
/ 2023
Educational Lectures
Lectures on technology and career at high schools in Iwate and Miyagi prefectures. Conducted for over 200 students.
Other
/ 2023
Crowdfunding for Artist Support
Executed and achieved a crowdfunding campaign goal for artist support.
App Development
/ 2022
Online Hobby Learning Service
Frontend development using Flutter and technical support for the team. Responsible for performance improvements as the user base grew and new feature implementation.
WorldSkills Expert
/ 2022
WorldSkills 2022 Korea
Served as a judge and technical trainer for the Japanese representative at the decentralized world competition.
Organizational Development
/ 2022
Creative Team Organizational Improvement
Led organizational improvement and technical support for a creative team within a 4,000-person group.
App Development
/ 2021
Cosmetic Brand CMS Development
Developed a CMS site using Next.js as a Frontend Engineer.
Lead Engineer
/ 2020
Scoring Service (LINE Mini App)
Served as Lead Engineer for backend development using NestJS/Google Cloud and team management.
Lead Engineer
/ 2019
Proprietary CMS V2 (Automotive)
Served as Lead Engineer for the admin panel using Vue.js for design, implementation, and management.
Lead Engineer
/ 2018
Proprietary CMS V1 (Automotive)
Served as Lead Engineer for the admin panel using AngularJS for design, implementation, and management.
Media
/ 2017
Featured in 'Web Designing' Magazine
Featured in 'Web Designing', a specialized magazine for web production.
Speaker
/ 2017
Lecture at a Commercial High School in Okinawa
Delivered a lecture on career and technology to approximately 90 students at a high school in Okinawa.
Media
/ 2015
Featured in Kahoku Shimpo
Featured in Kahoku Shimpo, a major newspaper in the Tohoku region, regarding achievements in the WorldSkills competition.
Awards
/ 2015
WorldSkills 2015 (São Paulo)
Competed as the Japanese representative in the 'Web Design' trade and was awarded the Medallion for Excellence.
