About

I’m Haryun ‘Ryan’ Shin, a software engineer working across blockchain, data, and AI.
Based in Seoul, South Korea.

This blog is my public archive of projects and track record, and a place to share practical insights from building products and systems in the crypto and AI landscape; what worked, what didn’t, and what I learned along the way.

What you’ll find here

• Portfolio: major projects and case-study style writeups
• CV: a concise summary of my experience and background
• Articles: opinions and lessons learned on blockchain, AI, and the industry

Focus areas

• Blockchain engineering: mainnet & ecosystem development, smart contracts, and Web3 products
• AI for real products: LLM/agentic workflows, internal inference infrastructure (vLLM), and OCR-based document processing
• Data engineering & analytics: pipelines, analysis, and decision support using on-chain/exchange data
• Compliance & market integrity: AML/KYC-related data systems and monitoring workflows

A bit more context

I’ve worked on projects such as:

• AI-powered contract management (backend + AI + product execution)
• Cosmos-based mainnet core releases and smart-contract work
• Exchange compliance systems (AML) and real-time market surveillance
• DeFi and wallet/payment products in Web3 ecosystems

If you’d like to connect, feel free to reach out via Email or Linkedin