Hire the Best Ethereum Developers
in the United States

Clients rate our Ethereum developers
Rating is 4.8 out of 5.
4.8/5
Based on 183 client reviews
Salmaan A.

New York, New York

$50/hr
4.3
11 jobs

🚀 Building the future of Web3 and AI-powered innovation. I help startups, founders, and enterprises develop secure, scalable, and gas-optimized blockchain and AI solutions from smart contracts to AI-driven dApps, DeFi protocols, and cross-chain ecosystems. With 8+ years of experience in Solidity, Rust, and full-stack Web3 development, I am not just a coder, I’m a technical strategist who can turn your blockchain or AI concept into a production-ready product trusted by users and auditors alike. ✅ Core Blockchain & AI Services Smart Contract Development & Auditing -ERC20, ERC721, ERC1155, ERC404, BEP20, SPL token standards -Custom tokenomics: staking, vesting, whitelisting, royalties -Audit-ready code with gas optimization and security best practices AI + Web3 Integrations -On-chain AI data automation, AI agent integration, and model inference -Connecting machine learning APIs to decentralized apps -Smart contracts that interact with AI-powered oracles and analytics DeFi & Cross-Chain Protocols -DEX, lending, staking, and liquidity pool architecture -Cross-chain bridge development (LayerZero, Wormhole) -Yield farming and tokenomics systems Full-Stack dApp Development -Frontend: React, Next.js, TypeScript, TailwindCSS -Backend: Node.js, Python, Rust, Express.js -Web3 libraries: Ethers.js, Web3.js, Solana Web3.js Security & Testing -Unit, fuzz, and integration testing (Foundry, Hardhat, Anchor) -Vulnerability mitigation: reentrancy, flash loan, integer overflow -Audit preparation and refactoring for gas efficiency 🔍 Popular Project Types >Cross-chain NFT marketplaces >AI-driven smart contracts & analytics dashboards >DAO governance and voting systems >DeFi yield platforms & crowdfunding dApps >zkEVM and L2 integrations >Web3 wallets and automation scripts 🧠 Tech Stack *Languages: Solidity, Rust, TypeScript, JavaScript, Python *Frameworks: Hardhat, Foundry, Anchor, Brownie, Next.js *Chains: Ethereum, Solana, Polygon, BSC, Avalanche, Arbitrum, zkSync *Infra: IPFS, PostgreSQL, MongoDB 💬 Client Feedback ⭐ “Delivered an audit-ready smart contract with zero vulnerabilities.” ⭐ “Optimized our DeFi protocol, reducing gas costs by 40%.” ⭐ “Flawless communication, felt like having a CTO on the team.” 📞 Let’s Build the Future Whether you’re creating a Web3 DeFi app, AI-powered blockchain system, or NFT marketplace, I’ll help you design, develop and deploy with confidence. 📩 Click “Invite to Job” or message me, let’s bring your blockchain + AI vision to life

  • Ethereum
  • Blockchain
  • Blockchain Development
  • Solidity
  • Smart Contract Development
  • DApps
  • Blockchain, NFT & Cryptocurrency
  • Web3
  • Crypto Wallet Development
  • NFT Marketplace
  • Artificial Intelligence
  • Machine Learning
  • Full-Stack Development
  • DevOps
  • NFT Minting
Tyler L.

Bristol, Pennsylvania

$40/hr
4.9
28 jobs

I have been working in the space full time since 2018 and have gained a broad range of experiences. I have helped raise over a combined 3.5m for clients in 2021. My primary focus is now Solana where i spend a majority of my time teaching Blockchain Development on Solana. I really enjoy creating Tokenomics and writing Whitepapers. I also have creative direction/branding experience and a network of artists. I have done operations for teams as high as 50 people. 90% of my work comes from Twitter/Discord and past client referrals. I have also have obtained 4 clients legal regulatory compliance for their DAO in the USA. I value morals and ethics so any shady/suspicious requests will be ignored.(No flash loans, bots/scripts, arbitrage products) Services: Smart contract and deployment (-10 hours): Contract Deployment Post Project Consultation Candy Machine Deployment(Solana) Complete Token Project (20 hours): Website Whitepaper Contract Tokenomics Deployment Post Project Consultation Custom Smart Contract/NFT project (40+/- hours): Custom Contract with client specified logic. Token Frontends / Dashboards (React) DEX/Swap Clones NFT Minting Backend/Frontends/ IPFS Other Services: Regulation Consultations General Education Custom NFT Art (1k-10k Generated assets) Supported Standards: ERC-20 - Standard tokens ERC-998 - Composable Tokens ERC-721 - NFTs ERC-1155 - NFTs On-Chain NFTS Supported Networks: ETHEREUM SOLANA POLYGON/MATIC BSC AVALANCHE FANTOM

  • Ethereum
  • Blockchain
  • Blockchain Development
  • Smart Contract
  • Project Management
  • Initial Coin Offering
  • Cryptocurrency
  • web3.js
  • Solidity
  • React
  • HTML
  • JavaScript
  • CSS
Calvin L.

Kaysville, Utah

$70/hr
5.0
14 jobs

I am a senior full stack & blockchain developer with 8+ years of rich, real world experience. I enjoy and understand the importance of both technical and creative aspects during the developmental process and strive to deliver perfect results in the quickest time possible, no matter the circumstances or job requirement. My strongest professional skills are included in the following list: - Front-end: HTML, CSS, JavaScript, Bootstrap, Sass, React/Redux, Typescript, Vue.js, GraphQL, Apollo. - Back-end: Node.js, Django, Laravel and Ruby on Rails - Database: MongoDB, MySQL, PostgreSQL -Software UI/UX Design, Graphic Design -AWS Amplify, S3 bucket. - ERC-721, ERC-20, ERC-1155 smart using solidity. - Firmware development for PIC, ARM and FPGA

  • Ethereum
  • React
  • JavaScript
  • Node.js
  • CSS
  • HTML
  • Sass
  • Bootstrap
  • Redux
  • Database Programming
  • Solidity
  • Layer 2 Blockchain
  • DeFi
  • NFT Minting
  • UX & UI
Michael S.

Garland, Texas

$60/hr
5.0
1 jobs

👋 Hi, I'm a Full Stack Blockchain Developer | Web3 Engineer | NFT & DeFi Specialist I help startups and enterprises build and scale their ideas into real-world blockchain applications. From early-stage consulting to full product delivery, I partner with businesses to integrate blockchain, NFTs, smart contracts, and decentralized systems into their models, securely and efficiently. With years of hands-on experience, I have developed and led full-cycle blockchain solutions, including NFT marketplaces, DeFi protocols, custom smart contracts, and token launches on Ethereum, Solana, and other major networks. I don't just write code, I offer strategic insight to help you align your tech stack with your business goals. 🔧 What I Do ✅ Custom Blockchain Development – Build solutions tailored to your needs, from the ground up ✅ Smart Contract Development – Design, audit, and deploy secure contracts (ERC-20, ERC-721, ERC-1155) ✅ NFT Marketplace Development – Launch NFT platforms for digital art, real estate, collectibles, and more ✅ **DeFi Protocols** – Develop and integrate staking, farming, token swaps, liquidity pools ✅ **Web3 dApp Development** – User-friendly decentralized applications powered by React, Next.js, and Web3.js ✅ **Crypto Wallet & Exchange Integration** – Secure wallets and seamless crypto transactions ✅ **Blockchain Consulting** – Translate your business idea into a blockchain-ready architecture ✅ **POC/MVP Creation** – Get investor-ready with lean, functional Proof of Concepts ✅ **Private & Permissioned Blockchain Solutions** – Built on Hyperledger, Substrate, or Multichain ✅ **Ongoing Maintenance & Support** – Keep your platforms secure, fast, and up-to-date 💻 Tech Stack I Work With **Blockchain / Smart Contracts** 🔹 Solidity, Rust, Golang 🔹 Ethereum, Solana, Polygon, Binance Smart Chain, Substrate 🔹 ERC-20, ERC-721, ERC-1155 standards 🔹 Truffle, Hardhat, Remix, OpenZeppelin 🔹 Web3.js, Ethers.js, 0x.js 🔹 Metaplex, Anchor, Phantom Wallet Integration 🔹 IPFS, Moralis, OpenSea API 🔹 Crypto Bot and AI Blockchain Tools **Backend Development** 🔸 Node.js, Nest.js, Express.js 🔸 Python, Golang 🔸 PostgreSQL, MongoDB, MySQL 🔸 Firebase, AWS, Azure 🔸 CI/CD: Git, Jenkins, Docker, GitHub Actions **Frontend Development** 🔸 React.js, Next.js, Gatsby, Vue.js 🔸 Tailwind CSS, Material UI 🔸 TypeScript, JavaScript 🧠 Why Clients Work With Me * I take time to **understand your business model**, not just your tech stack * I deliver **clean, scalable, and maintainable code** * I offer **end-to-end solutions**—from concept to post-launch support * I provide **timely communication**, flexibility with time zones, and full transparency * I’ve built **long-term relationships** with clients by being consistent, proactive, and accountable ✅ Let’s Build the Future of Web3 Whether you're launching a **DeFi project**, building an **NFT platform**, or exploring **custom blockchain use-cases**, I can help you build secure, scalable, and user-friendly solutions that deliver real value. 📩 Let’s connect and turn your blockchain vision into reality. 🔍 Keywords (for visibility): blockchain developer, smart contract developer, solidity developer, web3 developer, NFT developer, ethereum developer, solana developer, rust blockchain developer, erc20 developer, erc721 developer, erc1155 developer, defi developer, nft marketplace, crypto wallet developer, smart contracts, full stack blockchain developer, web 3.0 development, ethereum smart contracts, custom blockchain solutions, decentralized app development, dApps, truffle, hardhat, openzeppelin, metaplex, opensea api integration, blockchain consulting, ico development, crypto exchange developer, token development, blockchain maintenance, decentralized finance, layer 1 blockchain, AI crypto bot, blockchain integration

  • Blockchain Architecture
  • Blockchain Development
  • Blockchain, NFT & Cryptocurrency
  • React
  • Node.js
  • PostgreSQL
  • Next.js
  • MongoDB
  • Web3
  • Algorithm Development
  • Quantitative Analysis
  • Solana
  • AI Trading
  • Cryptocurrency Trading
Andreas E.

Katy, Texas

$59/hr
4.9
40 jobs

After working in 5 startups and 3 Sillicon Valley companies, I have a long history of designing, developing and deploying entire Blockchain and Full Stack solutions to companies of all sizes. I'm proficient with web3, front end and back end development. Another advantage that I have are my communication skills: I'm good at listening to the client, understanding the requirements and delivering effective and efficient solutions with aggressive deadlines. I have developed multiple projects with great client satisfaction. Some examples include: - NFT Marketplace with tokens reedemable for physical assets (Solidity) - NFT minter for videogame startup (Solidity) - Backend for NFT minting site (Javascript/Typescript) - Taxable ERC20 Token (Solidity) - ERC20 Token on Pancakeswap for a Virtual Reality startup (Solidity) - NFT Smart Contract Audit (Solidity) We can meet for a demo, I can show you the above examples and more. I have extensive experience with Solidity, Hardhat, Python Flask, Python Django, React, React Native, Angular, Ionic, TypeScript, JS and JS frameworks/libraries in general. I'm confident my skills will be very valuable to your project. I understand that you are on a tight schedule. I'd like to follow up ASAP to maximize available time. Please let me know when you're available so we can discuss this in depth. Cheers!

  • Blockchain
  • Smart Contract
  • jQuery
  • Angular
  • JavaScript
  • React
  • CSS 3
  • HTML5
  • Flask
  • Django
  • C#
  • React Native
  • Solidity
Alex C.

American Canyon, California

$70/hr
4.4
11 jobs

Hello! I'm Alex, a full stack blockchain developer with expertise in smart contract development, bot creation, and front-end integration. Here are some of the skills I bring to the table: Bot Development I’ve built custom bots to monitor DeFi positions, track NFT ownership, and automate transactions across EVM-compatible chains. Smart Contract Development I’ve written, tested, and deployed smart contracts for DeFi protocols, NFT projects, and custom dApps. NFT Projects I've successfully launched multiple NFT projects, handling everything from metadata creation to deployment.​ Front-End Integration I am experienced with ethers/web3.js, and can seamlessly connect smart contracts with front-ends. Technical Consulting I’ve helped dev teams troubleshoot complex issues and keep projects moving efficiently. My goal is to understand your problem and work with you to deliver a clean, effective solution. Looking forward to working together, Alex

  • Ethereum
  • Blockchain
  • Smart Contract
  • Cryptocurrency
  • Python
  • Solidity
  • web3.js
  • iOS Development
  • Swift
  • Scripting
  • React
  • Flask

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