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Software Engineer

Welcome to my website!

I'm Yuya a Software Engineer based in Nice France from Tokyo with creativity and huge passion for technology. This is one of portfolio projects. I implemented this website with using hugo.

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Smart & Connective
French company located in Sophia Antipolis, specializes in Light BMS and building automation
2024-05 → Present Company site
  • Implementing cross platform application
  • Implementing RESTful API
  • Implementing Web applications
  • Creating and improving technical documentation to enhance team productivity and knowledge sharing
◇ React Native Expo◇ Node.js◇ Next.js◇ TypeScript◇ AWS◇ Rust
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Asial Corporation
Tokyo-based outsourcing and development company, specializing in handling development projects for well-known Japanese manufacturers and media entities.
2021-10 → 2024-05 Company site
  • Backend Team Leader, leading a team to implement REST API using Nest.js, PostgreSQL(AWS RDS Aurora), and Docker(AWS ECS)
  • Implementing an e-commerce site utilizing Magento and pwa-Studio (React.js), and conducting code testing with Jest.
  • Developed REST API with Node.js, S3, Lambda and DynamoDB.
  • Developed a video player application using Vue.js, Node.js, and Express.js.
  • Contributed to the in-house cybersecurity team by creating and implementing internal security rules and regulations.
◇ TypeScript◇ Node.js◇ Golang◇ PostgresSQL◇ AWS(Cloudformation, Cognito, S3, ECS, Cloudfront etc...)◇ Nest.js◇ Gin◇ React
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Mates Co., Ltd.
Tokyo-based company that specializes in developing educational technology applications for institutions such as tutoring centers and schools.
2020-04 → 2021-08 Company site
  • Development, maintenance and performance improvement of static site websites
  • Development, maintenance and performance improvement of tools and forms for back office team and marketing team.
  • Development, maintenance, testing and performance improvement of GraphQL API with using TypeScript, AWS lambda and AppSync in an agile team.
◇ TypeScript◇ Node.js◇ MySQL◇ AWS(AppSync, lambda, S3, RDS etc...)◇ Gatsby.js◇ Vue2
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overflow Co., Ltd.
Tokyo-based company specializing in consulting web marketing and
2019-04 → 2020-03 Company site
  • SEO of web media
  • Content marketing and SEO writing
  • Development of reporting tool to Slack with using Google App Script and Google sheet
◇ WordPress◇ Google App Script
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Projects // Activity Log

  1. 2024-09 → Present
    Published and Maintained the Open Source Library react-native-websocket-self-signed
    Developed a React Native bridging library that enables secure WebSocket communication using self-signed certificates. Designed for IoT provisioning / closed networks.
    React NativeSwiftKotlin
  2. 2023-08 → 2025-06
    Implementing geolocalization product MVP
    Cross-platform app with Google Maps API. Frontend with React Native Expo; backend with Nest.js. I'm collaborating with a business professional and a designer for a start up project to implement a cross-platform application utilizing the Google Maps API. The frontend was developed using React Native Expo, while the backend was implemented by Nest.js.
    React Native ExpoReact ViteNest.jsPostgreSQLAWS

Publications

2025-01

Authored an article for a Japanese tech magazine

I authored an article for the January 2025 issue of Nikkei Software Magazine (日経ソフトウエアマガジン2025年1月号) featuring a book database application that I developed. The application is capable of scanning a barcode and retrieving the ISBN using Quagga2, an open-source barcode scanning library. It then fetches book information from the Rakuten Books API using the ISBN. The data is stored in an SQLite database and displayed on the frontend.

HTMLCSSJavaScriptRakuten books APINode.jsExpressSQLite
Buy on Amazon.co.jp
日経ソフトウエアマガジン2025年1月号
2023-11

Authored an article for a Japanese tech magazine

I authored an article for the January 2024 issue of Nikkei Software Magazine (日経ソフトウエアマガジン2024年1月号). The article features an OCR translation application that I developed. The application is capable of extracting text from image files using Tesseract.js, an open-source OCR library. It then translates the extracted text using the DeepL translation Web API. Additionally users have the option to save both the translated text and the original uploaded image using indexedDB.

HTMLCSSJavaScriptDeepL APINode.jsExpress
Buy on Amazon.co.jp
日経ソフトウエアマガジン2024年1月号

Blog

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