I'm a Senior Full Stack & Generative AI Engineer with 7+ years of experience building scalable web applications and AI-powered solutions. My expertise includes React, Next.js, TypeScript, Go, Node.js, GraphQL, PostgreSQL, MongoDB, AWS, and Azure. I also specialize in Generative AI, developing applications using OpenAI APIs, LLMs, RAG, AI agents, Function Calling, and the Model Context Protocol (MCP). I've built products in the logistics, hospitality, and healthcare industries, delivering secure, high-performance systems from frontend to backend and cloud infrastructure. I focus on clean architecture, maintainable code, and scalable solutions that solve real business problems. Whether you need a modern SaaS application, a full-stack web platform, or AI features integrated into your existing product, I can help turn your ideas into reliable, production-ready software.…

Ichigo Noguchi

I'm a Senior Full Stack & Generative AI Engineer with 7+ years of experience building scalable web applications and AI-powered solutions. My expertise includes React, Next.js, TypeScript, Go, Node.js, GraphQL, PostgreSQL, MongoDB, AWS, and Azure. I also specialize in Generative AI, developing applications using OpenAI APIs, LLMs, RAG, AI agents, Function Calling, and the Model Context Protocol (MCP). I've built products in the logistics, hospitality, and healthcare industries, delivering secure, high-performance systems from frontend to backend and cloud infrastructure. I focus on clean architecture, maintainable code, and scalable solutions that solve real business problems. Whether you need a modern SaaS application, a full-stack web platform, or AI features integrated into your existing product, I can help turn your ideas into reliable, production-ready software.…

Available to hire

I’m a Senior Full Stack & Generative AI Engineer with 7+ years of experience building scalable web applications and AI-powered solutions.

My expertise includes React, Next.js, TypeScript, Go, Node.js, GraphQL, PostgreSQL, MongoDB, AWS, and Azure. I also specialize in Generative AI, developing applications using OpenAI APIs, LLMs, RAG, AI agents, Function Calling, and the Model Context Protocol (MCP).

I’ve built products in the logistics, hospitality, and healthcare industries, delivering secure, high-performance systems from frontend to backend and cloud infrastructure. I focus on clean architecture, maintainable code, and scalable solutions that solve real business problems.

Whether you need a modern SaaS application, a full-stack web platform, or AI features integrated into your existing product, I can help turn your ideas into reliable, production-ready software.

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Skills

Experience Level

API
Expert
TypeScript
Expert
Go
Expert
Node.js
Expert
AI Chatbot
Expert
Azure
Expert
Large Language Model
Expert
MongoDB
Expert
PostgreSQL
Expert
Prompt Engineering
Expert
Docker
Expert
GraphQL
Expert
AWS
Intermediate
Redis
Intermediate
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Work Experience

フルスタックエンジニア at QTnet
June 1, 2024 - May 31, 2026
React（TypeScript/Tailwind）、React Nativeを用いた商品配送プラットフォームの設計・開発を担当。Redux Toolkitで状態管理とデータ同期処理を最適化し、コードスプリッティング/ラジーラーディングで初期表示速度を改善。GoでREST APIおよびバックエンドサービスを開発し、高負荷環境でも安定運用を実現。MongoDBのデータモデル設計とクエリ最適化により取得性能を向上。JWT/OAuthによる認証・認可を実装しセキュリティを強化。OpenAI APIとRAGを活用した生成AI問い合わせ支援/アシスタントのPoC・開発を推進。CypressおよびMocha/Chaiで自動テストを整備し品質向上と本番障害削減に貢献。コードレビューとリファクタリング、Scrum開発でのGitHub活用により開発効率も向上。
フルスタックエンジニア at Megaworld Corp
February 1, 2021 - May 31, 2024
React/Vue.js、TypeScript、Tailwind、Go、NestJS、GraphQL、Azureを用いたホテル向けWebサイトおよび管理システムの設計・開発を担当。オンライン予約機能の改善により予約率と業務効率を向上。レスポンシブUIを実装しモバイル体験を改善。Azure環境で高可用性を維持しながら構築・運用。OpenAI APIを活用した生成AI問い合わせ支援のPoCを実施しFAQ対応業務の効率化に寄与。WebSocketによるリアルタイム更新でユーザー体験を改善。Kanbanでアジャイル開発を推進し、Jest/Cypressの自動テスト導入により品質を担保。
フルスタックエンジニア at Foodspere
October 1, 2018 - January 31, 2021
React/Node.js（Express）を用いた病院向けWebシステムの設計・開発を担当。オンライン予約機能の改善によりサービス利用率を向上。Material UI、SCSS、styled-componentsでレスポンシブUIを実装。PostgreSQL最適化およびReduxによる状態管理でデータ処理性能を改善。REST APIの設計・開発により高速かつ安定したAPI提供を実現。パフォーマンス改善でページ表示速度とユーザー体験を向上。

Education

コンピュータサイエンス学士 at ミンダナオ州立大学
January 1, 2014 - January 1, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Telecommunications, Healthcare, Travel & Hospitality
    Hotel Booking & Reservation System

    Developed a hotel reservation platform with an online booking system and administration dashboard.

    Responsibilities

    • Built booking and management features
    • Developed GraphQL APIs
    • Implemented WebSocket real-time updates
    • Deployed on Microsoft Azure
    • Created responsive UI with React and Vue.js

    Technologies

    React, Vue.js, Go, NestJS, GraphQL, Azure, WebSocket

    Logistics & Delivery Management Platform

    Designed and developed a logistics platform for shipment tracking and delivery management.

    Responsibilities

    • Developed responsive frontend with React and TypeScript
    • Built Go REST APIs
    • Implemented JWT/OAuth authentication
    • Optimized MongoDB queries
    • Added automated testing using Cypress
    • Improved application performance through lazy loading and code splitting

    Technologies

    React, TypeScript, Tailwind CSS, Go, MongoDB, JWT, OAuth, Cypress

    AI Customer Support Assistant with RAG

    Developed an AI-powered customer support assistant that automates FAQ search and response generation using OpenAI GPT models and Retrieval-Augmented Generation (RAG).

    Responsibilities

    • Designed and implemented the backend using Go and Node.js
    • Integrated OpenAI API for intelligent response generation
    • Built a RAG pipeline with pgvector for semantic search
    • Developed REST APIs and authentication with JWT
    • Built a responsive React + TypeScript frontend
    • Optimized prompt engineering and response quality

    Technologies

    • React
    • TypeScript
    • Go
    • Node.js
    • OpenAI API
    • RAG
    • pgvector
    • PostgreSQL
    • Docker
    • GitHub Actions

    Results

    • Reduced manual FAQ handling
    • Improved response accuracy
    • Faster customer support workflow