Professional Summary
Blockchain systems engineer with 5+ years of experience building smart contract protocols, validator infrastructure, and production backends.
Strong focus on security, correctness, and performance (gas optimization), with experience leading engineering teams and shipping revenue-impacting products. Interests include blockchain security, consensus reliability, and formal methods for decentralized systems.
Education
University of Maryland, College Park
B.S. Computer Science • Minor in General Business
Work Experience
Chief Technology Officer
B&G Systems Co., Ltd. • Blockchain Department • Seoul, South Korea
- Led a 6-member blockchain engineering team and launched products that increased company revenue by 15%.
- Designed smart contract and backend architectures emphasizing security, gas efficiency, and maintainability.
- Instituted disciplined design reviews and correctness-driven engineering practices to proactively reduce engineering risk.
Freelance Blockchain Developer
Kmong Platform • Prime Member
- Achieved Prime status (top 2%) on Kmong based on client evaluations and platform metrics.
- Developed and deployed 10+ Ethereum and Solana smart contracts and token systems using Solidity and Rust.
- Delivered secure, scalable on-chain architectures and API integrations for non-technical clients.
Technical Projects
CoinHelio
Lead crypto data analysis and research to identify market inefficiencies and arbitrage opportunities. Develop real-time data pipelines to aggregate cross-exchange signals and backtest trading algorithms.
Alcohol Prevention Research Chatbot
Built and reviewed the backend for an NLP-based research chatbot (supervised by Grace Jeonghyun Kim, Ph.D.), ensuring reliable data collection and integrity on GCP.
Blockchain Validator Node Operator
Deployed validator nodes on AWS/Docker, monitoring uptime and performance for reliable network participation. Applied best practices in key management, access control, and observability.
The-Adena (Blockchain Online Game)
Led a 2-developer team to build and operate a blockchain game with 3,000+ users and USD 170K in revenue. Implemented and audited core smart contracts and token logic; verified deployments on BscScan.
Leadership & Activities
University Church
Develop and maintain the full-stack website and server infrastructure (Flask, PostgreSQL) to support community outreach.
Blockchain at Maryland
Lead student research in Web3, including on-chain data analysis and protocol case studies, and organize technical workshops.
Publications
Introduction to Smart Contracts with Solidity
[Solidity로 시작하는 스마트 컨트랙트 입문]
Sole author of a comprehensive 260-page technical manuscript on smart contract security and optimization. Full draft is open-sourced on GitHub; submission to a Korean technical publisher is planned for Mar 2026.
Awards & Honors
OMSE Academic Excellence Society (OAES)
Member • University of Maryland
Recognized for academic excellence and leadership.
Smart Contract Excellence Award
B&G Systems Co., Ltd.
Won the internal smart contract competition with a Solidity contract that reduced gas costs by 13%.
Technical Skills
Back-End / Database
Front-End
Infrastructure / DevOps
Get In Touch
I’m always open to discussing smart contract security, blockchain infrastructure, or full-stack engineering work.