Hi, I'm Satoshi 👋
Results-driven full-stack & AI product developer, helping startups design, build, and launch scalable MVPs, SaaS platforms, and custom web apps with speed, lean execution, and sharp product focus.
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About

A software engineer based in Tokyo, Japan. I've been coding since 2019 and have a strong passion for building web and mobile applications.

I have a BSc in Computer Science and love programming, system design, and problem-solving, and always try to learn new technologies. Currently my main focus is on AI-powered applications and cloud-native solutions.

Skills: Figma, HTML, CSS, TypeScript, Python, Dart, PostgreSQL, MongoDB, Git, Cloud Services

Work Experience

  • R

    ROW ONE ASIA PTE. LTD

    Senior Full Stack Developer (Backend-focused)

    Built a distributed ticket booking system with Next.js, NestJS, GraphQL, and MongoDB, designing the backend infrastructure, optimizing query performance, and implementing a secure, fault-tolerant booking flow that scaled to thousands of concurrent users.
  • T

    Tidio LTD

    AI Engineer (Conversational AI / RAG Systems)

    AI-powered customer service agent using LangChain, RAG pipelines, and vector search, which automated up to 67% of support conversations while keeping responses accurate and human-like.
  • L

    Le Grand

    UI/UX Designer | Frontend Developer

    Designed and prototyped responsive user interfaces using Figma and Adobe XD, improving design handoff speed by 30% through consistent component usage.

Education

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Tokyo Denki University

2016 - 2020
Bachelor's Degree of Computer Science (BCS)
My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Ticket Booking System

Ticket Booking System

Built a distributed ticket booking system with Next.js, NestJS, GraphQL, and MongoDB, designing the backend infrastructure, optimizing query performance, and implementing a secure, fault-tolerant booking flow that scaled to thousands of concurrent users.

Next.js
Typescript
TailwindCSS
NestJS
GraphQL
MongoDB
Redis
Tidio

Tidio

AI-powered customer service agent using LangChain, RAG pipelines, and vector search, which automated up to 67% of support conversations while keeping responses accurate and human-like.

Next.js
Typescript
TailwindCSS
Node.js
Prisma
PostgreSQL
Python
PyTorch
LangChain
RAG
Prism.fi

Prism.fi

A crypto payment streaming system to support real-time token transfers for user subscriptions and purchases, improving transaction efficiency and platform scalability.

Next.js
Typescript
TailwindCSS
Node.js
MongoDB
AI Image Generator

AI Image Generator

AI image generation platform that allows users to generate high-quality images and digital artwork from natural language prompts using OpenAI’s advanced AI models.

Next.js
Typescript
TailwindCSS
Node.js
OpenAI
Contact

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