Professional Summary
Blockchain & Security Expert with 5+ years of experience in smart contract development, security auditing, and Web3 technologies. Specialized in building secure, scalable DeFi protocols and conducting comprehensive security assessments.
AI/ML Developer with expertise in building production-ready AI solutions using LangChain, LangGraph, and NVIDIA CUDA. Successfully developed and deployed an AI-powered fake news detection mobile app (React Native/Flutter) with Firebase deployment, testing, and recent launch on the Android App Store. Achieved 95% accuracy in AI agent systems with hands-on experience in RAG (Retrieval-Augmented Generation) and GPU programming.
Technical Educator & Mentor with proven track record of teaching blockchain development and engaging with 1,500+ blockchain developers and CEO speakers at domestic and international conferences since 2021. Served as instructor at FastCampus and KISA (Korea Internet & Security Agency), delivering comprehensive curriculum on Solidity, smart contract security, and EVM architecture.
Core competencies include: Smart Contract Development (Solidity), Security Auditing, DeFi Protocols, AI/ML Engineering, MLOps with Kubernetes, Cryptography, Zero-Knowledge Proofs, and Full-Stack Web3 Development. Contributed to Bitcoin community research on quantum-resistant scaling solutions.
Professional Experience
Blockchain Development Instructor
Korea Internet & Security Agency (KISA)
Government-led blockchain developer education program focusing on Solidity and smart contract security.
- Taught government-led blockchain developer education program (Solidity syntax, EVM architecture, security best practices)
- Delivered in-depth Solidity training with emphasis on smart contract security vulnerabilities and defense mechanisms
- Conducted 10 smart contract hands-on projects focusing on secure coding practices, reentrancy prevention, and gas optimization
- Taught ERC-4337 account abstraction and cryptographic fundamentals
Technical Marketing Strategy Lead
5010Tech
Led technical marketing strategy for AI-powered cryptocurrency quant trading platform.
- Led technical marketing strategy for AI-powered cryptocurrency quant trading platform
- Invited speaker at German Blockchain & AI Conference (GBW) - MC for European blockchain law & education session
- Managed global team communication and established technical documentation standards
AI/ML Developer Training
NVIDIA Deep Learning Institute (DLI) Academy
Intensive training program focused on GPU programming, AI, and machine learning technologies.
- Completed GPU programming and CUDA, AI Vision, RAG with hands-on training
- Built AI agents using LangChain and LangGraph
- Developing fake news detection chatbot app with React Native (AI-based security verification)
- Applied NVIDIA DLI training in GPU programming, RAG, and LangChain for production-ready AI solutions
Blockchain Developer & Security Researcher
Freelance / Open Source Contributor
Full-stack blockchain development with focus on security, smart contracts, and Web3 technologies.
- Developed cryptocurrency exchange frontend
- Implemented security product dashboards
- Built MLOps pipelines with Kubernetes container orchestration
- Contributed to Bitcoin community research on quantum-resistant scaling solutions
- Developed DeFi protocols including AMM, Staking, and Yield Farming
- Developed security product dashboards and conducted security research at AI Vision Research Institute
Development Mentor
Ethcon Korea
Mentoring international developers on smart contract security and blockchain development.
- Served as development mentor for 2 years at Ethcon Korea
- Analyzed smart contract security vulnerabilities from international developers
- Conducted code reviews and security assessments for blockchain projects
- Facilitated knowledge sharing sessions
Blockchain Development Instructor
FastCampus
Teaching advanced blockchain development and smart contract security.
- Taught Solidity programming over 1.5 years
- Developed comprehensive curriculum
- Covered ERC-4337 account abstraction and advanced smart contract patterns
- Built deep theoretical foundations in blockchain security for students
Blockchain Development Instructor
FastCampus
Teaching Solidity programming, EVM architecture, and smart contract security to aspiring blockchain developers.
- Designed comprehensive curriculum covering Solidity fundamentals to advanced smart contract patterns
- Taught EVM internals, gas optimization, and security best practices
- Mentored students in building production-ready DeFi protocols and NFT marketplaces
- Conducted code reviews and security audits of student projects
Founder (Personal Project)
HedgeSpace
RWA-based blockchain real estate investment simulation game teaching investment strategies through edutainment.
- Developed RWA (Real World Asset) based blockchain real estate investment simulation game using Unity (C#)
- Created edutainment game teaching real estate investment strategies and asset ownership concepts
- Designed game mechanics integrating blockchain technology with traditional real estate principles
- Scheduled for Steam release in 2025
Key Projects
AI-Powered Fake News Detection App
2025 - PresentCross-platform mobile app for fake news detection using advanced AI and machine learning techniques.
Download on Google Play (Available upon meeting)Key Features
- Real-time news verification using AI-powered analysis
- Multi-source fact-checking with credibility scoring
- Natural language processing for content analysis
- User-friendly interface with instant results
- Offline mode with cached verification data
- Share verification results with detailed reports
- Developed with React Native and Flutter for cross-platform compatibility
- Successfully deployed on Android (available now), iOS release scheduled
- Implemented RAG (Retrieval-Augmented Generation) with Top-k optimization
- Built multi-agent system using LangChain and LangGraph
- Applied NVIDIA DLI training in GPU programming (CUDA)
- Designed AI-based security verification system for news authenticity
Cryptocurrency Exchange Anomaly Detection & Locking System
2022 - 2024Real-time anomaly detection and automatic account locking system for cryptocurrency exchange with advanced security measures.
- Developed responsive and secure frontend interface
- Implemented real-time trading dashboard with WebSocket integration
- Built security product dashboard for monitoring and threat detection
- Designed anomaly detection alert system for suspicious trading patterns
- Implemented automatic account locking mechanism for security threats
- Conducted code security analysis and implemented defense mechanisms
- Integrated Web3 wallet connections and transaction handling
MLOps Pipeline with Kubernetes
2023 - 2024Production-ready MLOps infrastructure for AI model deployment and orchestration.
- Designed and implemented Kubernetes container orchestration
- Automated ML model deployment with CI/CD pipelines
- Configured infrastructure as code for scalable deployments
- Implemented monitoring and logging for production systems
- Optimized resource allocation and auto-scaling policies
Quantum-Resistant Bitcoin Scaling Research
2023Research contribution to Bitcoin community on quantum computing threats and solutions.
- Researched quantum-resistant cryptographic algorithms
- Analyzed Bitcoin Script limitations and proposed improvements
- Explored zero-knowledge proof applications for privacy and scaling
- Contributed to open-source Bitcoin improvement proposals
- Collaborated with international researchers on quantum computing threats
Smart Contract Security Auditing Platform
2022 - 2023Automated security analysis platform for smart contract vulnerability detection.
- Built automated static analysis tools for Solidity code
- Implemented pattern matching for common vulnerabilities (reentrancy, overflow, etc.)
- Developed comprehensive security checklist and best practices guide
- Conducted manual audits for high-value DeFi protocols
- Provided detailed security reports with remediation recommendations
DeFi Protocol Suite
2021 - 2023Comprehensive DeFi protocols including AMM, Staking, and Yield Farming mechanisms.
- Developed automated market maker (AMM) with liquidity pools
- Implemented staking contracts with reward distribution mechanisms
- Built yield farming protocols with optimized gas efficiency
- Conducted thorough security audits and vulnerability assessments
- Achieved 99.9% test coverage with comprehensive unit and integration tests
Publications & Research
청년을 위한 비트코인 (Bitcoin for Young People)
A comprehensive guide to Bitcoin for young people, covering fundamental principles, practical applications, cryptocurrency investment strategies, blockchain technology, and insights into the future of digital assets.
Zero-Knowledge Proofs in Blockchain: Interactive vs Non-Interactive Protocols
Comprehensive analysis of zero-knowledge proof systems, comparing interactive and non-interactive protocols in blockchain applications.
ZK-Rollups: Modern Cryptography History and Principles
In-depth exploration of ZK-Rollup technology, tracing the evolution of modern cryptography and explaining the fundamental principles behind zero-knowledge scaling solutions.
Smart Contract Security Auditing: Automated Tools and Manual Review Best Practices
Presents a comprehensive framework for smart contract security auditing, combining automated static analysis tools with manual code review methodologies. Includes case studies of critical vulnerabilities in DeFi protocols.
MLOps for AI-Powered Cybersecurity: Deployment Strategies and Performance Optimization
Explores MLOps best practices for deploying AI-powered security solutions at scale. Covers Kubernetes orchestration, model versioning, continuous training pipelines, and real-time threat detection optimization.
ERC-4337 Account Abstraction: Security Implications and Implementation Patterns
Analyzes the security implications of ERC-4337 account abstraction standard, providing implementation patterns for secure user operations, paymaster contracts, and bundler infrastructure.
Cross-Chain Bridge Security: Vulnerabilities and Mitigation Strategies
Comprehensive study of cross-chain bridge vulnerabilities, analyzing major exploits and proposing novel security mechanisms including multi-signature validation, time-locked transfers, and anomaly detection systems.
Active contributor to blockchain and cryptography communities with publications in IEEE, ACM, and leading research forums.
Technical Skills
Smart Contracts
- Solidity (1.5 years including projects and teaching)
- EVM architecture
- Gas optimization
- Security patterns
- ERC-4337 account abstraction
Blockchain
- Ethereum
- Solana (Rust)
- Avalanche research
- Bitcoin Script
- DApp development
- DeFi protocols (AMM, Staking, Yield Farming)
Frontend
- Vue.js
- React
- React Native (under 1 year)
- TypeScript/JavaScript
- Web3.js/ethers.js
Mobile Apps
- React Native (under 1 year)
- Flutter (under 1 year)
- Cross-platform development
- Mobile UI/UX
Game Development
- Unity (C#)
- Game mechanics design
- RWA-based game development
- Blockchain game integration
- Steam platform deployment
Security
- Code security analysis
- Smart contract security auditing
- Security defense mechanisms
- AI-based security solutions
- Vulnerability assessment
- Penetration testing concepts
- Security monitoring systems
AI/ML
- GPU Programming (CUDA)
- RAG with Top-k optimization
- LangChain
- LangGraph
- Multi-agent systems
- AI Vision
- AI-based security & anomaly detection
MLOps & DevOps
- Kubernetes
- Docker
- CI/CD pipelines
- ML model deployment
- Container orchestration
- Model versioning
- Automated training pipelines
- Infrastructure as Code
Other
- Information Security
- Cryptography
- ZK Proofs research
- Python
- Quantum-resistant Cryptography
Key Achievements
Blockchain Security Expert
Taught Solidity and smart contract security at FastCampus for 1.5 years, building deep theoretical foundations for students
International Mentor
Served as development mentor at Ethcon Korea for 2 years, analyzing smart contract vulnerabilities from international developers
Security Certifications
Certified Information Security Engineer, demonstrating expertise in cybersecurity
Full-Stack Blockchain Developer
Developed cryptocurrency exchange frontend, security dashboards, and DeFi protocols with production-ready code
AI/ML Innovation
Building AI-powered security solutions with NVIDIA DLI training in GPU programming, RAG, and LangChain
Open Source Contributor
Active contributor to Bitcoin community on quantum-resistant scaling solutions and blockchain research
MLOps Infrastructure
Built production-ready MLOps pipelines with Kubernetes orchestration and CI/CD automation
Smart Contract Auditor
Conducted comprehensive security audits for DeFi protocols, identifying and mitigating critical vulnerabilities
Education
Bachelor's Degree
Design · Computer Science (Double Major)
Hongik University
Focused on design and CS knowledge, software development (blockchain development, security, AI design)
- Undergraduate Research Assistant at AI Security Lab (9 months)
- Acquired blockchain security, AI-based security solutions, UI/UX and media art design