Senior Developer

10+ years building production web applications with AI integrations. Specializing in React, Next.js, Python, and LLM-powered features.

chiba, Japan
Available

Companies I've worked with

Gumloop
Parkopedia
HACARUS
US-MAC
Gumloop
Parkopedia
HACARUS
US-MAC
Gumloop
Parkopedia
HACARUS
US-MAC
Gumloop
Parkopedia
HACARUS
US-MAC
Profile

About Me

Developer focused on building reliable AI-powered web applications

RY

Senior AI & Full-Stack Developer

chiba, Japan

10+ years building production web applications with AI integrations. I focus on shipping reliable products that solve real problems.

Take projects from idea to production

Build both frontend and backend systems

Integrate AI features that users actually use

Write maintainable, readable code

7+

Years

50+

Projects

20+

Stack

Education

B.Sc., Software Engineering

Hokkaido University

2012 - 2016

Experience

Gumloop

AI Engineer

2023 - Present

Parkopedia

Full Stack Developer

2021 - 2023

HACARUS

Software Engineer

2019 - 2021

Primary Stack

ReactNext.jsTypeScriptNode.jsPythonFastAPIPostgreSQLOpenAI APILangChainDockerAWS
Expertise

Technical Skills

7+ years of experience across the full technology stack

7y

Frontend

ReactNext.jsTypeScriptTailwindFramer Motion
⚙️
7y

Backend

Node.jsPythonFastAPIGraphQLExpress
🤖
4y

AI & LLM

OpenAILangChainRAGVector DBPrompts
💾
6y

Database

PostgreSQLMongoDBRedisMySQL
☁️
5y

DevOps

DockerKubernetesAWSGCPCI/CD
📱
3y

Mobile

SwiftUIXcodeUIkitExpoReact NativeFlutter

7+ years

Experience

50+

Projects

20+

Technologies

Full Stack

Focus

Portfolio

Projects

36 projects across AI, full-stack, and mobile development

TestGrid
AI / ML01
Featured

TestGrid

AI-powered end-to-end testing platform with CoTester AI agent for automated codeless testing across browsers and devices.

AI/MLTestOSSeleniumAppium
Website
CodeRabbit
AI / ML02
Featured

CodeRabbit

AI-powered code review platform that finds bugs, enforces guidelines, and auto-fixes issues directly in PRs.

LLMGitHub APIGitLab APIAST
Website
Jasper AI
AI / ML03
Featured

Jasper AI

AI content automation platform for marketers with content pipelines, agents, and brand voice management.

GPT-4ClaudeCanvasGrid
Website
Stable Diffusion Web
AI / ML04

Stable Diffusion Web

Free online AI image generator using Stable Diffusion XL for creating photo-realistic art from text prompts.

SDXLPythonReactGPU
Website
WOW Infotech
Full Stack05

WOW Infotech

AI-powered software development and IT staff augmentation for startups with 165+ software projects delivered.

ReactNode.jsAI/MLMobile
Website
Prismetric
Full Stack06

Prismetric

Digital transformation services with AI development, data engineering, and Vitara vibe coding platform.

PythonGen AINext.jsML
Website
Get in Touch

Let's Talk

Have a project in mind or want to discuss opportunities? Book a call and let's chat.

Location

chiba, Japan

JST Time

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Meeting

30 min call

Status

Available

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