Hire the Best Smart Contracts Developers
in Vietnam

Senior Blockchain Developer | Web3 & Smart Contract Expert I'm a blockchain developer and Web3 architect with English fluency and 9+ years building production-grade smart contracts, DeFi protocols, NFT infrastructure, and crypto wallets. I've shipped audit-ready blockchain solutions for 150+ clients worldwide. 🔹 What I build as a blockchain developer: - DeFi Protocols — lending, staking, yield farming, governance, payment gateways, cross-chain (LayerZero, Axelar, IBC) - NFT Infrastructure — ERC721/ERC1155 smart contracts, NFT marketplaces, minting engines, NFT staking, financial NFTs - Crypto Wallets — ERC-4337 account abstraction, multichain wallets (EVM & non-EVM), MPC, social recovery, gasless UX - Rollups & Modular Chains — OP Stack, zkStack, Celestia DA, EigenLayer, custom sequencers 🔹 Blockchain tech stack: Solidity, Vyper, Rust, Hardhat, Foundry, zkSync, Arbitrum, Optimism, Cosmos SDK, Substrate, Polygon CDK, Cairo, Noir, OpenZeppelin, Seaport, IPFS, Wagmi, RainbowKit, Safe 🔹 Featured blockchain projects: - Play-to-Earn NFT game with custodial crypto wallet - Liquity fork with multi-collateral DeFi architecture - Launchpad on NEAR for tokenized IDOs - Prediction market on Solana - Staking aggregator platform 🔹 How I work: Audit-ready, gas-optimized smart contracts. Transparent communication. Fast prototyping. Outcome-focused. Available for contract, ongoing blockchain development, or Web3 advisory roles. Let's build your next blockchain project together.

With 10+ years of experience as a Full-Stack Blockchain Developer, I specialize in building secure, high-performance Blockchain, AI and Web & Mobile app solutions. I prioritize clear communication, timely delivery, and a deep understanding of each client’s goals. My Core Strengths: ✓ Blockchain Development: Smart contracts, NFTs, DeFi platforms, DEXs, token launchpads (IDO/ICO), crypto trading bots, and Tele mini apps ✓ Web Development: Expertise in Node.js, React, Nest.js, MongoDB, MySQL, PHP, and HTML/CSS ✓ AI & Automation: AI-driven tools, Tele bots, trading automation, and task optimization I’m excited about the opportunity to collaborate with you and bring your ideal products to life. Feel free to reach out anytime. Thank you for your time and consideration. Best Regards, Loi Phan

👨‍💻 +5 years Full-Stack & +3 years Blockchain expertise I transform complex technical requirements into streamlined solutions, helping clients navigate the evolving Web3 landscape with confidence. Technical Proficiency: Frontend: React, React Native, Redux, TypeScript/JavaScript, HTML/CSS Backend: Go, NodeJS, MySQL, PostgreSQL Blockchain: Solidity, Hardhat, EVM-compatible chains (Ethereum, BSC, Avalanche, Polygon, Fantom), Layer 2 solutions, SUI, Solana, Cardano My Approach: I don't just write code—I provide strategic consultation to identify the most efficient, cost-effective technical paths for your project. My solutions prioritize scalability, security, and user experience. Looking for a developer who delivers value beyond implementation? Let's discuss how I can help bring your vision to life. View my portfolio for examples of successful projects across various blockchain ecosystems.

🔥 I am a skilled engineer with experience in iOS/Android, Web applications, Blockchain, and Unity development. I build high-performance mobile, web, game, and blockchain apps from start to finish - whether you’re launching a new idea or need help improving an existing one. 🔥 I have worked with high-impact FIFA projects and collaborated with diverse international teams. 🔥 Technical Expertise: ✅ Mobile development: React Native (Scalable architectures, TypeScript, and Modular Design Patterns) | Expo ✅ Web application: React.js | Next.js | TailwindCSS | ElasticSearch ✅ Back-end: NodeJS (Express) | Python (Django) | API servers (RESTful APIs and GraphQL) | ASP.Net Core ✅ Blockchain: Web3 API | Solidity (Smart Contract) | Truffle Suite ✅ Cloud: Azure, IaaS, CI/CD Pipelines ✅ Game: Unity Engine (C#) ✅ Firebase Integration: Firestore, Authentication, Cloud Functions, and Messaging for real-time updates and enhanced functionality. ✅ QA: Manual functional | Tests automation ⭐ Why you should choose me over other freelancers ⭐ ✅ Budget-Friendly: You have budget limitations and need efficient and cost-saving development. ✅ Planning and Code Review: I analyze flowcharts, design or make code review and provide you with a detailed development plan together. ✅ Optimized Performance: Focus on app optimization for speed and low memory consumption. ✅ Security-First Approach: Prioritize security with SSL encryption, OAuth 2.0, JWT, and end-to-end encryption. ✅ Custom Solutions: You look for custom solutions to address your particular business objectives. ✅ Client Satisfaction: I always aim to bring real value and build strong, TRUST-based relationships with my clients. ✅ Support After Launch: Ongoing maintenance and updates to ensure long-term success and adaptability to new technologies. ⭐ Personal Qualities That Make a Difference ⭐ ✅ Kind and Respectful: Kindness is a core part of who I am. I treat everyone with respect, approach every situation with empathy, and truly care about helping my clients improve their situations. ✅ Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my clients. ✅ Always Give More: This is a key part of how I work. I aim to give more than expected and take pride in surprising my clients with results that exceed their expectations. Ready to build or improve your app? Whether you need something new, want to add features, or just need technical advice — I’m here to help. Let’s chat about your project and make something great together!

- Overview: +7 years of experience in Blockchain, expert with smart contract. +5 years of experience in web application - Techstack: + Blockchain: Solidity & EVM, Rust, Move + Backend: NestJS, NodeJS,GraphQL + Frontend: ReactJS,NextJS - Projects: ERC20, ERC721, ERC1155, NFT Marketplace, DeFi (DEX), GameFi - Expert: integrate smart contract with frontend and backend