Hello, EREFY — Tech Lead & Full-stack Engineer based in Osaka

Tech Lead / Full-stack Engineer based in Osaka.

Bridging backend, infrastructure, and AI to help products scale and engineering teams thrive — grounded in problem-solving and a systems mindset.

ABOUT

EREFY

EREFY

Tech Lead / Full-stack Engineer

Over 12 years across contract work and large-scale web services. Spanning backend, infrastructure, and AI — focused on product growth and building stronger engineering organizations.

Ruby on Rails Go TypeScript AWS AI / Claude Code
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