Paul
Senior Blockchain Engineer
Skilled Blockchain Engineer with over 6 years of experience in developing and implementing smart contracts and decentralized applications across various blockchain projects. Proficient in backend development, with extensive knowledge of Node.js, Python, and frameworks such as Next.js, Django, and FastAPI. Demonstrated expertise in DeFi, GameFi, DAOs, and ERC token standards, along with a solid understanding of blockchain security practices. Specialized in building sophisticated prediction markets, DeFi vaults, perpetual exchanges, and account abstraction implementations. Experienced with multi-chain deployments, upgradeable contracts, and gas optimization techniques.
Professional Experience
6+ years of blockchain engineering and data science expertise
Blockchain Engineering
Apr 2025 – Present
Key Achievements:
- •Developing upgradeable smart contracts using OpenZeppelin's UUPS proxy pattern
- •Implementing ERC404 hybrid tokens (ERC20/ERC721) for fractionalized NFT trading
- •Building comprehensive staking mechanisms with tiered access controls
- •ERC-4337 account abstraction with EntryPoint contracts and UserOperation bundling
★Notable Projects:
Prediction Markets Platform
Built a decentralized prediction market with conditional tokens and automated settlement
ERC404 NFT Fractionalization
Implemented hybrid token standard for seamless NFT-to-fungible token conversion
Blockchain Engineering
Nov 2024 – May 2025
Key Achievements:
- •Multi-chain deployment on Arbitrum, Base, and Hyperliquid networks
- •Building portfolio management APIs with FastAPI and SQLModel
- •Real-time PnL calculations, APY tracking, and position management
- •Point distribution systems with dynamic base rates and multi-partner rewards
★Notable Projects:
Delta Neutral Vaults
Developed automated hedging strategies for risk-free yields across multiple protocols
Portfolio Management API
Built comprehensive API for tracking positions across DeFi protocols
Blockchain Engineering
March 2023 – Present
Key Achievements:
- •Backend development with NodeJs and NextJS frameworks
- •Integration with Web3 technologies for blockchain interactions
- •Working with smart contract audit team to detect vulnerabilities
- •Building Delta Neutral strategy on Hyperliquid and Arbitrum
★Notable Projects:
Perpetual DEX
Built a high-performance perpetual futures trading platform with leverage up to 50x
Yield Farming Protocol
Developed automated yield optimization strategies across multiple pools
Blockchain Engineering - Team Leader
March 2023 – May 2024
Key Achievements:
- •Backend development with Python and Django frameworks
- •Research on blockchain trends, layer protocols, and security practices
- •Providing training sessions and workshops for development team
- •Creating and managing degen bots for Solana and EVM chains
★Notable Projects:
GameFi Platform
Developed play-to-earn gaming ecosystem with NFT rewards and tokenomics
Launchpad Platform
Built IDO platform for token launches with vesting and anti-bot mechanisms
Blockchain Engineering
Jan 2022 – April 2023
Key Achievements:
- •Implemented EIP-4337 standards for account abstraction
- •Developed DEX, LOB, and Aggregator functionalities
- •Machine learning for BTC/ETH/BNB price prediction (ROI 0.5-2%/day)
- •Smart contracts for tokens, NFTs, and staking mechanisms
★Notable Projects:
AA.finance (zkSync Era)
Implemented account abstraction wallet with EIP-4337 standards
Deepmarket.io Trading Bot
Built ML-powered trading bot with 0.5-2% daily ROI
Data Scientist
Jan 2021 – April 2022
Key Achievements:
- •RM Model optimization for contract cancellation detection
- •General Score model combining multiple models for risk identification
- •Connection Model using internet infrastructure data
- •Reduced error by 40.95% using advanced ML techniques
★Notable Projects:
Churn Prediction System
Built ML model to predict customer churn with high accuracy
Connection Quality Monitor
Developed system to monitor and predict internet connection issues
Education
Academic background and qualifications
Hallym University
Master of Electronic Engineering in Computer Science
Chuncheon, South Korea
Feb. 2019 – Jan 2021
University of Information Technology - VNU-HCM
Bachelor of Engineering in Information System
Ho Chi Minh, Vietnam
Sep. 2012 – March 2018
Scholarship Award
Master's Degree – Hallym University 2019
Technical Skills
Comprehensive expertise in blockchain and software development
Blockchain Development
Solidity
Smart Contracts
Web3.js/Ethers.js
ERC Standards
Programming Languages
Python
JavaScript/TypeScript
Rust
Backend & Development Tools
Node.js/Next.js
Django/FastAPI
Hardhat/Foundry
Docker/Git
Data Science & AI
Machine Learning
Tools & Technologies Ecosystem
Developer Tools
Libraries & Frameworks
Data Science
Interactive Web3 Features
Experience blockchain functionality with minting, swapping, staking, and more