Contact information

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Work experience

Senior Full Stack Developer

from 03.2024 to now (1 year 11 months)
Freelancer, Remote (IT)

• Updated a website providing observation data on meteorite called Ryugu and it's based on Java Spring and WebGL (Cesium)
• Recently built the version2 site for the Ryugu using NextJs 14, Django, PostgreSQL, PostGIS, AWS, Docker and CesiumJS.
• Built, updated and optimized several campaign api servers and casino game servers using PHP framework (Laravel).
• Joined to a AI service development for the house renters and buyers as a frontend developer and mainly used Vue3.
Skills: Java Spring, Python, Django, React, Nextjs, TypeScript, Cesiumjs, Threejs PostgreSQL, PostGIS, gdal, Docker, Terraform, CI/CD, AWS

Sr Full Stack and DevOps Engineer

from 03.2021 to 03.2024 (3 years)
Favary, Remote (IT)

•Directed backend and DevOps delivery for six large-scale animation game titles (Django, Unity), improving deployment speed and observability across environments.
•Oversaw Vietnam-based development team; reviewed PRs and improved testing success rate from 58% → 87%.
•Integrated Unity Analytics dashboards and deployed ML-driven story algorithms using LLMs and TensorFlow.
•Optimized project workflows and reduced delivery time by 30% through improved CI/CD and Agile processes.
•Built internal management tools and marketing site using React and Laravel.
Skills: Python, Django, Pytorch, Tensorflow, Keras, React, Unity, Unity Analytics, Google Analytics, Chart.js, Docker, Jenkins, Tensorflow, AWS
Portfolio:
https://favary.co.jp/

Full stack developer

from 06.2020 to 01.2022 (1 year 8 months)
Rivalry, Remote (IT)

•Developed blockchain-based casino and chess gaming platforms leveraging Web3 technologies.
•Established the implementation of automated data refresh processes, decreasing data staleness by 50% and enabling the team to react swiftly to market shifts, leading to a 25% increase in market share.
•Implemented automated unit and end-to-end testing pipelines for a robust codebase, which led to a 50% decrease in post-release.
Skills: React, Redux, Nuxt, wagmi, NFT, CEX, DEX, Meta Mask, Java Spring Boot, Kotlin, nginx, Google Analytics, Docker, Jenkins, CI/CD, Terraform, AWS
Portfolio:
https://www.rivalry.com/
https://chess.babydogeswap.com/

Full stack developer

from 05.2017 to 07.2019 (2 years 3 months)
iRidge, Remote (IT)

•Led end-to-end development of multiple large-scale platforms for transportation, logistics, and recruitment clients in Japan.
•Architected and delivered a cargo management system for Tokyo Harbor, improving shipment-tracking efficiency by 30%.
•Built real-time operation and delay information systems for West Japan Railway using Django + Vue, supporting > 1 million monthly users.
•Delivered Nikkei’s job platform (React, TypeScript, AWS), integrating analytics and Terraform-based CI/CD — boosting deployment reliability by 25%.
•Introduced Agile workflows and reusable UI components, cutting feature delivery time by ~20%.
Skills: PHP (Laravel, Smarty), PostgreSQL, Vue, Vuex, jQuery, React, Redux, Agile, Docker, AWS, Azure, GCP, AI
Portfolio:
https://global.trafficinfo.westjr.co.jp/en/
https://delay.trafficinfo.westjr.co.jp/pc
https://www.pjco.jp/

Full stack developer

from 03.2014 to 03.2017 (3 years)
Alpha Telemed, Remote (Medicine, pharmacy)

•Engineered a HIPAA-compliant telehealth platform enabling secure real-time consultations; boosted monthly appointment bookings +25%.
•Scaled cloud backend to support 10× user growth while cutting response time 45% through optimized architecture and containerization.
•Led a small cross-platform team building Android / iOS apps and integrating them with the web backend.
•Automated CI/CD deployment and analytics reporting across Google Cloud services.
Skills: PHP (Laravel / CodeIgniter / WordPress), MySQL, Oracle, jQuery, GCP, Docker, Android, iOS, nginx, Analytics tools
Portfolio: https://alphatelemed.com/

Back end developer

from 06.2011 to 01.2014 (2 years 8 months)
Creema, Remote (Real estate)

•Contributed to Japan’s leading handmade-goods e-commerce platform, implementing high-performance backend modules in PHP / Symfony / Laravel.
•Collaborated with design and QA teams to deliver pixel-perfect UX, resolving 50+ critical issues and increasing customer satisfaction 15%.
•Optimized SQL queries and caching, cutting page-load time ~35%.
•Supported continuous improvement through user-behavior analytics and A/B testing that raised conversion rates 20%.
Skills: PHP (Symfony, Laravel), ASP, Java Spring, JavaScript, jQuery, .NET, C#, C++, MSSQL, MYSQL, Oracle, AWS
Portfolio: https://www.creema.jp/

Knowledge and skills

• React
• React Native
• Node.js
• MongoDB
• Express.js
• TypeScript
• Next.js
• Nuxt.js
• Solidity
• Rust
• Golang
• Blockchain
• PHP
• Laravel
• Symfony
• WordPress
• MySQL
• Tailwind CSS
• PostgreSQL
• SEO
• Java
• Spring Boot
• C#
• .NET Framework
• ASP.NET Core
• Python
• FastAPI
• Django
• Flask
• Docker
• Jenkins
• Git
• SASS
• Linux OS user
• HTML
• CSS
• JavaScript
• Figma
• Bootstrap
• JQuery
• SQL
• C++

Language proficiencies

• English — advanced
• Japanese — fluent

Additional information

https://jade2.darts.isas.jaxa.jp/ (Nextjs, Cesiumjs, TypeScript, Python, Django, Docker, AWS, Terraform)
https://vmistudio-willowwalk.vercel.app/finder(React, Threejs)
https://character-studio.vercel.app/(React, Threejs)
https://favary.co.jp/ (PHP, Laravel, laravel-admin, C#, Unity, Unity Analytics)
https://www.rivalry.com/ (Nuxt, Vue, Java Spring, NFT, wagmi. Web3)
https://chess.babydogeswap.com/(React, Express, NFT, wagmi, Web3)
https://www.ezmob.com(Angular, Laravel, PostgreSQL, Jenkins, Portainer)
https://global.trafficinfo.westjr.co.jp/en/(Django, Python)
https://alphatelemed.com/ (PHP, Laravel, Wordpress, andriod studio, iOS)