Hire the Best Blockchain Developers
in Vietnam

Backed by 100% Job Success over 60 projects, 𝐈 𝐨𝐟𝐟𝐞𝐫 𝐅𝐑𝐄𝐄 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐚 𝐅𝐑𝐄𝐄 𝐪𝐮𝐢𝐜𝐤 𝐫𝐞𝐯𝐢𝐞𝐰 𝐨𝐟 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭. AI Full stack Developer with 9+ years across Web3 & AI. I build production agents that automate real workflows including RAG, multi-agent systems, trading & onchain automation, blockchain onchain data, Fintech, DeFi, RWA, Payment gateway. 🤖 AI agent work (what I ship now): - Custom AI agents & copilots - LangGraph, LangChain, CrewAI, OpenAI & Claude APIs - RAG pipelines grounded in your data - vector DBs, evaluation suites, guardrails against hallucination - Multi-agent orchestration - planner/worker/reviewer patterns, tool use, memory - Workflow automation - n8n, Slack/Telegram/WhatsApp bots, CRM & API integrations - Trading & onchain agents - bots that read markets, execute strategies, and interact with smart contracts safely ⛓️ Web3 foundation (9+ years): - DeFi protocols - lending, staking, perp DEXs, cross-chain (LayerZero, Axelar) - Smart contracts - Solidity, Rust, Foundry, audit-ready code - Wallets & infra - ERC-4337 account abstraction, MPC wallets, rollups (OP Stack, zkSync) Selected projects: - Multi-agent AI platform serving live users - Decentralized perpetual exchange - AI trading agent with onchain execution and risk limits - Liquity fork with multi-collateral DeFi architecture - RAG support agent resolving 60% of tickets automatically How I work: fixed scope, clear milestones, daily updates, full code ownership on delivery. I'll always recommend the smallest build that gets you a working agent in production — not the biggest. 📩 Send me the workflow you want automated (or the protocol you want built) and I'll reply with a concrete approach within an hours or book a 30-min consultation directly from this profile.

As a highly skilled and experienced blockchain developer, I possess a deep understanding of the technology and am well-versed in the development and implementation of smart contracts. With a Bachelor's degree in Computer Science and 3 years of experience in the field, I have had the opportunity to work on a variety of projects that have allowed me to gain expertise in different areas of blockchain development. One of my technical skills is my ability to develop complex smart contracts that adhere to the Ethereum Improvement Proposals (EIPs). For example, I have developed a smart contract wallet that allows users to securely store and manage their digital assets using Ethereum blockchain. This wallet implements the EIP4337 standard, which ensures interoperability with other applications in the Ethereum ecosystem. In addition, I have designed the wallet with a modular architecture that allows it to adapt and integrate with new and emerging technologies. I am familiar with using cryptographic techniques in smart contract development to enhance security and protect user privacy. In addition, I have experience with writing smart contracts in assembly code, which enables me to optimize contract execution and reduce gas costs. Currently, I am working as a team lead for a smart contract development team at a company in Vietnam, where I am responsible for leading and mentoring other developers, as well as ensuring the successful execution of projects. My experience and leadership skills make me a valuable asset to any organization in the blockchain space. In addition to my smart contract wallet project, I have also worked on other notable projects in the blockchain space. One such project was a decentralized lending platform where I developed a complex Ethereum smart contract that implemented advanced security measures and token standard ERC-20. This project allowed users to lend and borrow cryptocurrencies securely and transparently without the need for intermediaries. Another project that I worked on was a decentralized governance platform where I implemented the proxy pattern in a smart contract. This enabled users to vote on proposals and decisions using a secure and transparent governance system. Furthermore, I have expertise in developing automated market maker (AMM) contracts, which allow users to trade cryptocurrencies in a decentralized and trustless manner. I have also built a decentralized marketplace platform that utilizes smart contracts to enable secure and transparent peer-to-peer trading of goods and services. In addition, I have experience with developing staking protocols and lending protocols that utilize smart contracts to enable users to earn passive income on their cryptocurrencies while also providing liquidity to the ecosystem. Overall, my experience in developing smart contracts for various projects has given me a broad range of technical skills and expertise. I am always eager to take on new challenges and opportunities in the blockchain space and to contribute my knowledge to the development of innovative projects that can make a positive impact on the industry. I am a proactive, results-driven professional with strong problem-solving and communication skills. I am confident that my education, experience, and technical skills have prepared me well for this field, and I am eager to apply my knowledge to new and challenging projects.

Need a production-ready Trading Bot, seamless Binance API integration, or high-performance Web3 systems? I am a Full-Stack Engineer with 12+ years of software engineering experience, specializing strictly in Fintech frameworks, real-time data architectures, and Blockchain integration. I bridge the gap between heavy backend logic and real-time user dashboards. What I build and deliver for your business: • Fintech & Trading Automation: Advanced Binance API (Futures/Spot) systems, automated TP/SL risk management, signal processing, and high-frequency trading bots. • High-Scale Backend APIs: Node.js/TypeScript coupled with Express, REST, and secure WebSocket data streams managed via PM2/Docker. • Web3 & Blockchain Engineering: Solidity smart contracts (DeFi protocols, limit-order matching, ERC-20/ERC-1155) and off-chain Node.js Relayer bots. • Real-time Dashboards: Vue 3 + TypeScript + Pinia administrative panels integrated with real-time trading charts. • Cross-Platform Mobile: Complete Flutter applications seamlessly integrated with secure backend infrastructure. Proven Case Studies: → Sovryn Protocol (Bitcoin L2): Developed core smart contracts for Spot/Margin trading and built a custom Node.js Relayer bot for on-chain order matching. → Binance Automation: Engineered a multi-user automated trading bot featuring advanced backtesting modules and live Vue 3 charting data. → VietRace365: Scaled a national sports platform managing thousands of concurrent participants with Strava API sync and payment gateways. I write clean, documented code and provide transparent, async milestone updates. Core Stack: Node.js • TypeScript • Vue 3 • Flutter • Solidity • Web3.js • Docker • PostgreSQL • MongoDB • WebSockets. 📩 Tell me your project goal—I'll reply with a scoped technical plan within 24 hours.

As an experienced Blockchain Developer, I specialize in building decentralized applications (dApps) and smart contracts with a focus on secure, efficient systems. Proficient in Rust and Next.js, I develop high-performance applications, leveraging both front-end and back-end technologies. My background includes working on a range of blockchain projects, from protocol-level development to user-friendly interfaces. I am passionate about delivering innovative solutions, optimizing performance, and ensuring scalability.

- Ability to lead a team, give some solutions for a specific problem and suffer under high pressure at work. - Senior developer with 10+ years of experience working with large scale and high-performance distributed systems. - Fluency in Solidity, Go, Rust, Nextjs, Nodejs, Reactjs and Typescript. - Experience with blockchain technologies: Metamask, BSC scan, ETH scan, getblock io, Molaris apis, Opensea... - Experience with AI: Tensorflow, Pytorch, AutoML, LLM, RAG. - Backend: Nodejs, Python, Golang. - Frontend: Reactjs, Vuejs. - Concepts: OOAD, Design Pattern, Data Structure and Algorithms, ER Diagram. - Databases: Postgres, Mysql, MongoDB, AWS Cognito/Dynamo, Redis. - OS: MacOS, Linux (Ubuntu, Centos), Docker, Docker-composer. - AWS serviecs: EC2, ELB, SES, S3, RDS, CI/CD...

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