I build reliable software and guide teams into shipping it.
Yusuke Hayashi
Software Engineer / Developer
I build reliable, user-focused products across web, cloud, and teams. I enjoy turning complex ideas into clear, maintainable software.
01About
About Me

Software Engineer focused on shipping AI-enabled business applications that get adopted in production. At haya, I also run AI-adoption consulting: from workflow redesign to rollout and adoption support across teams.
Experiences
Founder / AI Adoption Consultant @ haya Inc.
Leading AI adoption consulting for teams and founders by planning, piloting, and scaling GenAI solutions.
Contract Engineer @ GenerativeX
Supported consulting initiatives by providing engineering execution support for AI adoption and practical rollout planning.
Contract Engineer @ LayerX
Delivered GenAI features with production-safe rollout practices and measurable quality metrics.
Executive Dev Manager @ QuickWork
Led feature prioritization, delivery quality, and cloud-native architecture alignment.
Software Engineer @ Sony / SIE
Designed and maintained scalable services with a strong emphasis on reliability and user value.
Education
- The Open University of Japan (B.A.)
- The University of Tokyo (Integrated Science)
Skills
AI
- LLM integration
- RAG pipelines
- AI evaluation
- Prompt design
Engineering
- TypeScript / React / Next.js
- Node.js / SQL / API design
- Cloud infrastructure
Product Delivery
- Workflow design
- Team enablement
- Production rollout
02Contact
Contact
Whether you have a question or just want to say hi, I'll try my best to get back to you.