Hire an Expert Blockchain Developer now

BlockchainDevs is the #1 Marketplace for Freelance Web3 Developers.


Showing 437 developers. Reset filters

Developer's avatar
  • China
  • 5 years+ experience

Senior blockchain | Full Stack engineer

Hi there! I'm a Senior blockchain | Full Stack engineer with 5 years of professional experience based in Hong Kong. Previously I've worked as a Senior Blockchain Developer at Silo Finance and as a Junior Blockchain and Web Developer at Point Network. I'm an expert at smart contract and front-end development and web3 integration and have significant experience using solidity, rust, react, web3.js, typescript and so on. I've worked on various Blockchain projects professionally. For example I created a smart contract which has dividend, swapable and anti-bot features. I'm currently looking for a full-time job as a blockchain developer. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • Japan
  • 5 years+ experience

Full stack && BLOCKCHAIN Developer

Hi, I am a senior blockchain developer with proficiency in NFT marketplace, Smart Contract development, ICO& IDO, Smart Contract Audits, DeFi/DApp development. My blockchain experience is extensive, having worked with blockchain since 2017. I am well-versed in the following services: ▶️ Smart Contract Development 🔹 ERC20, ERC721, ERC721A, ERC1155, BEP20, BEP721 Standards, Solana, EOSIO, WAX, Elrond networks. 🔹 Contract Test and Audit in development environment by using Truffle, Hardhat 🔹 Anti-Bot, Whitelist functions integration for Token, NFT contracts 🔹 Wrap Token Contract development from BTC, NDAU, Doge, etc. ▶️ Smart Contract Audits 🔹 Code checking line by line 🔹 High/Middle/Low level severity Audit test on the testnet, devnet 🔹 Provide audit with functional example ▶️ Defi/ DApp Development 🔹 Forking Dex tools like Uniswap, Sushiswap, Pancakeswap, Rubic with special requirement 🔹 Crypto Escrow System development (Frontend: React, Backend: Laravel, Python/Flask, Escrow Contract development) 🔹 ICO & IDO, Token airdrop & presale service platform with custom supply, Liquidity, whitelist 🔹 Wallet connection using web3.js or ether.js ▶️ NFT minting & staking, marketplace Development 🔹 Minting, Staking Contract on ERC721, ERC1155 standards on Ethereum, Polygon, Avalanche, BSC, Harmony, Solana network 🔹 P2E (Play to Earn) contract development ▶️ Cross-Chain-Bridge Development. 🔹 Child Token, Bridge Contract development 🔹 Relay service integration like Moralis, Chainlink, Chainstack 🔹 Well-made Cross-Bridge DApp development using react.js, web3.js, MongoDB ▶️ CEX Development 🔹Spot & Margin Trading option, Multi-Chain Support 🔹 Fiat Withdraw, Deposit function by using PayPal, Stripe, CoinPayment, Perfect Money Api integration 🔹 Well-Structured DB Design ▶️ Crypto Bot Development 🔹 NFT Minting & Sale Order Bot development 🔹 Auto Trading Bot 🔹 Crypto AIO Bot I am available on the flexible timezone, and I can accept full-time, part-time, contest position. Therefore If you share your idea, I will make it to reality. Best Regards. We will meet on the crypto-verse.

View profile
Available now
Developer's avatar
  • India
  • 0-2 years experience

We deal in Web3

Hi there! I'm a Blockchain Developer with almost 1 year of experience based in India. Previously I've worked as a Web3 Content Analyst (Internship) I'm an expert at Solidity and have significant experience using ReactJS. I've worked on various Blockchain projects for example I created a NFT game in which you have to mint a NFT with certain attributes and fight with the boss. I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] as a Blockchain Developer. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • India
  • 2-5 years experience

Solidity| Hyperledger| Web3

My name is Shivansh , I've gained the knowledge and skills required for blockchain developer, smart contract development ,auditing job, example solidity ,blockchain , ethereum,bitcoin. I'm looking to gain more practical knowledge in blockchain space. I will make sure to be the valuable addition to the company. Thank you Regards Shivansh Shrivastava

View profile
Available now
Developer's avatar
  • Italy
  • 2-5 years experience

Reliable, accurate, bug hunter I'm able to work on smart contracts and their connection with the frontend, together with backend server development

Hi there! I'm a solidity with 2 years of professional experience based in Italy. Previously I've worked as a Technical Product Manager and freelance developer for at many gaming companies. I'm an expert in developing smart contracts and have significant experience using Solidity, PHP and Javascript. I've worked on various Blockchain projects professionally. I'm currently looking for a contractor job as a solidity developer. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • Iran
  • 2-5 years experience

Fullstack blockchain engineer

Hi. I'm a Web3 developer with one year of professional experience. I have significant experience using Solidity, Hardhat, Ether js, and react. I've worked on various Blockchain projects. For example, I created an NFT Marketplace, a turn-based NFT browser game, and DAO. I'm currently looking for a part-time as a Web3 developer. Please let me know if you're interested in working together.

View profile
Available now
Developer's avatar
  • India
  • 5 years+ experience

Blockchain Developer

Hi there! I'm a Blockchain Architect with 4 years of professional experience. I'm an expert at Ethereum and EVM based chains and have significant experience using Solidity, DeFi Apps, Javascript, Typescript, Node JS, React Js. I've worked on various Blockchain projects. I have built Cross-Chain Bridging Solutions for ERC20 token transfers, Staking, Vesting, NFT Marketplace contracts, and integrating protocols like UniSwap, Aave in web applications... among others I'm currently looking for exciting work in DeFi. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • Nepal
  • 0-2 years experience

Its been 4 years i have been working in backend systems.Currently I am getting my hands dirty on solidity smart contracts and web3 ecosystem.

Hi there! I'm a backend developer with 4 years of professional experience based in Nepal. Previously I've worked as a backend developer at explore by technologies. I'm an expert at node.js and have significant experience using node.ja. I've worked on various Blockchain projects in mu spare time. For example I created staking smart contract, NFT miniting site and a erc20 smart contract. I'm currently looking for a fulltime role as a junior solidity developer. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • United Arab Emirates
  • 2-5 years experience

Full-Stack Blockchain Developer

Full Stack Blockchain Developer with extensive experience in Smart Contract development and deployment on EVM Compatible Blockchains with Solidity and the Solana Ecosystem with Rust, Front-End development in React, ReactNative and NextJs, Back-End development in NodeJs, Python, Rust, The Graph, IPFS, etc. I have a Proven understanding of the use of Blockchain Technology in the development and execution of Secure, Trustless user-facing Decentralized applications. I'm currently looking for a PART TIME / FULL TIME / FREELANCER as a Full-Stack Blockchain Developer. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • United States
  • 2-5 years experience

Full-stack Web3 Developer

Hi there! I'm a full-stack web3 developer. I've worked on Blockchain projects in a startup in progress, a couple clients, and a handful of personal projects. For example I created a project where users can create events on the blockchain, mint tickets from those events, and engage with those events & other users (likes, comments, etc.) using Next.js, Solidity, Web3.js, Truffle, Typescript, & Tailwind. I'm currently looking for more projects to work on either full or part time. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • Mexico
  • 2-5 years experience

Polyglot Software Developer

Hi there! I'm a Software Engineer with 5 years of professional experience based in Oaxaca, Mexico. Previously I've worked at CIRA and... I'm an expert at Python, Go and have significant experience using Linux/UNIX. I've worked on various Blockchain projects in my spare time. For example I created a service to send crypto by email (yes, archaic I know). I'm currently looking for a part-time as a DevOps. If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • Turkey
  • 0-2 years experience

I see blockchain as the next big step in technology, and I am dedicated to become an expert

Hi there! I'm a back end developer with [2] years of experience based in Turkey. Previously I've worked as an operations supervisor at Incheon Airports (south korea). I'm an expert at [back end development and overall operations management] and have significant experience using Ethereum blockchain, solidity, javascript, and python. I've worked on various Blockchain projects in my spare time such as setting up ethereum smart contracts and solana dapps. I'm currently looking for a remote part time or full time job, and I am also prepared for a hybrid job. If you're interested in working together, please contact me!

View profile
Available now
Developer's avatar
  • Kenya
  • 0-2 years experience

Professional Smart Contracts Developer

Professional Web 3 Developer with extensive knowledge in this industry who is passionate about helping the world create the new Web 3.0. With proven ability in developing EVM-compatible Smart Contracts and building decentralized applications. I seek to contribute my extensive skill sets to help businesses, communities and individuals to create their dream Blockchain projects built on top of Ethereum. I bring to the table a keen eye for design seasoned by an attention to detail, combined with best-of-writing, all driven by a passion for building a better future. I believe Blockchain and Crypto is where I can best leverage my skills to make the biggest impact.

View profile
Available now
Developer's avatar
  • India
  • 2-5 years experience

Interested in Developing something revolutionary in the todays world .

Hi there! I'm a Vishwanath with 3+ years of professional experience based in Bangalore,INDIA. Previously I've worked as a Software Developer at Effia Soft Technologies. I'm familiar with programming languages like JAVA,KOTLIN,SOLIDITY,JAVASCRIPT and recently have been working on Frame work like HARDHAT, I have significant experience in developing Android applications. I've worked on various Blockchain projects along with my current JOB as iam very much enthusiastic about getting into WEB3 development. For example I created a SMART CONTRACT like - Project name (Fund Me ) *Deployed on Ethereum Rinkeby Testnet which is used to take funding from the public - Current Project name (Raffle On) *Raffle smartcontract is a decentralized and untamperable raffle app using HARDHAT framework and also CHAINLINK for the VRF2 and chain-link keepers for automation of the contract . I'm currently looking for a [PART TIME / FREELANCER] as a WEB3 /Solidity developer as iam continuously learning and i can work for almost 20 to 30 hours /week . If you're interested in working together, please contact me.

View profile
Available now
Developer's avatar
  • India
  • 0-2 years experience

Solidity Smart contract, Ethereum Blockchain,Remix IDE,

Have gained good exposure to understand various aspects of Blockchain through Post Graduate Program which has developed a great sense of confidence at a very personal level. Technologies know 1. Basics of blockchain 2.Ethereum blockchain and deployment the smart contract on Ethereum 3 .solidity. I'm currently looking for new opportunity in blockchain aspects

View profile
Available now
Developer's avatar
  • Philippines
  • 5 years+ experience

I have done NFT, ICO, staking, trading, cyrpto wallet projects (i can show the demo)

i have done almost whatever is popular in the market for cyrpto or blockchain, i am part of active cyrpto community and business people who are wanting new things to be done.... so just let me know your blockchain projects.

View profile
Available now
Developer's avatar
  • India
  • 0-2 years experience

Enthusiastic about web3 and willing to learn more everyday

A beginner level but highly determined Solidity developer that is actively learning relevant skills in the web3 space.

View profile
Available now