Hire an Expert Substrate Developer now

BlockchainDevs is the #1 Marketplace for Freelance Web3 Developers.

Hire a Top Substrate Developer now

Showing 48 developers. Reset filters

Philippines
5 years+ experience

Smart Contract Developer | Rust Engineer | Solidity Expert

Hi there! I'm a Blockchain Engineer with 6 years of professional experience based in Philippines. I'm an expert at smart contract developing and have significant experience using Solidity and Rust. 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 View Linkedin Profile

Available now

Poland
5 years+ experience

Senior Blockchain Developer with 4+ years of experience in DApps using Web3 and Smart Contract development with Solidity and Rust.

Senior Blockchain Developer with 4+ years of experience in DApps using Web3 and Smart Contract development with Solidity and Rust. Hands-on experience in cross-chain protocol development between EVM and Non-EVM chains using LayerZero and proficiency in NFT game and Defi, DEX development. Strong knowledge of Cryptography(Encryption and Decryption) using symmetric and asymmetric algorithms, hash functions, Digital Signatures and Zero-Knowledge proof (ZKP) protocol. Interested in writing code that is reusable and scalable, following modern coding best practices and proficient in TDD/BDD. 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 View Linkedin Profile

Available now

Serbia
5 years+ experience

Fullstack Blockchain Developer

Hi there! I'm a Fullstack Developer with 8 years of professional experience. Previously I've worked as a Fullstack Developer at Atlasdex, Superbonds, Arc.market and Psyoptions.io I'm an expert at Rust and Solidity and have significant experience using Blockchain. I've worked on various Blockchain projects PROFESSIONALLY. For example I created a Token Vesting, Staking, Swap, Yield Farming, NFT Marketplace. I'm currently looking for a FULL TIME as a fullstack developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Pakistan
5 years+ experience

All rounder Sr. Blockchain Developer

Hi there! I'm a Syed Zain Hasan with 5 years of professional experience based in Zaytrics Pvt Ltd. I'm an expert at smart contract, tokenization, Cardano, Ethereum, Polygon, FLow, and have significant experience using react and nodejs. I've worked on various Blockchain projects PROFESSIONALLY. For example I created the whole eco-system of True Crime Crypto (https://truecrimecrypto.io/) and ViseClub (https://viseclub.visewealth.com/) with other members of the team. I was the team lead in those projects, also I designed and deployed the smart contracts and the system architecture. I'm currently looking for a FULL TIME / FREELANCER as a Sr. Blockchain Developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Pakistan
5 years+ experience

Full Stack Developer | Javascript | Python | Solidity | Rust | Plutus

Full stack developer (MERN and Python), experienced in Blockchain(Solidity,Rust, Plutus) Passing Knowledge of Machine Learning and Statistics . Team player with excellent communication and interpersonal skills. Ability and experience in working in high pressure environments and solving complex problems. Experienced in working with the MERN stack. Solid understanding of MongoDB, React and Node. Including advanced state management libraries such as MobX and Redux. Also experienced with Redis and mongoose ORM as well Experience in writing smart contracts on Ethereum and other EVM compliant chains (for e.g Polygon,BSC,Avalanche etc) in solidity and a solid understanding of the web3 protocol and integrating DAPPs with it. Additionally also experienced with building DAPPs on the Cardano Blockchain via Plutus

View profile View Linkedin Profile

Available now

Canada
5 years+ experience

Senior Web3 Full Stack Engineer

🎉Dear clients!!! Thank you for visiting my profile. Are you looking for a passionate professional, who can help you to solve your problems in an effective and convenient way? Then you have landed on the right profile. With hard-earned knowledge, skills, and 6+ years of continuous learning, hustle, and improvements as a developer, I would be able to help you in the best possible way, fulfilling your requirements from Design to Deploy. ✅ Blockchain Field: 📌 Ethereum, Binance Smart Chain, Polygon, Avalanche C-Chain, Solana 📌 Defi(AMM models, Yield Farming, Staking, Liquidity Pools), Dex, NFT MarketPlace 📌 Smart Contract, Web3.js/Solana-Web3.js, Ether.js, Truffle/Remix, Anchor ✅ Web Field: 📌 Node.js(ExpressJS/NestJS), .NET Core, AWS Lambda, CI, Laravel 📌 React/Redux/Next.js(Typescript based), Angular/Angular Universal/RxJS 📌 Bootstrap, TailwindCSS, Styled Components, Sass/Less, MUI/Chakra UI/Kendo UI 📌 Headless/Prismic, Shopify, WordPress 📌 React Native, Ionic Framework 📌 Firebase, AWS Service, Notion, Trello, Digital Ocean 📌 GitHub Action/GitLab CI/BitBucket Pipeline, Netlify/Heroku ✅ Programming Languages: C/C++/C#, Python, Javascript, PHP, Solidity, Rust ✅ Experienced Technology: Streaming & Image, Audio Processing Your 🏆success is my 🏆success and I will not let you down. 🚀Let's have a good journey!!!

View profile View Linkedin Profile

Available now

India
5 years+ experience

Smart Contract Auditor/Web3 Security Researcher

Introduction: I have been working in Web3 space as a Smart contract auditor since May 2023. I have been participating in competitions for a few smart contract audit platforms listed below. Code4Rena: I am at 200 rank for the year 2023. https://code4rena.com/@ravikiranweb3 Sherlock: https://audits.sherlock.xyz/watson/ravikiran.web3 Secure3: https://secure3.io/contest/profile/ravikiran_web3 Ion Protocol Audit: https://twitter.com/ionprotocol/status/1759654992342827371 Blog: https://ravikiran-web3.hashnode.dev/ I have been working to enhance the below skills on top of Solidity and EVM. a) Foundry for testing b) Defi concepts like Liquidity Pooling, Staking, Lending and Yields c) Blockchain Vulnerabilities through Secureum Boot camp d) ERC standards for Tokens, NFTs, Vaults and Flash loans e) Automation tools for vulnerability detection From past experience, I have good experience in NodeJs, NestJs, Rdbms, MongoDb, Redis, queues and application architecture. I am keen to step up my effectiveness in Web3 security through learning and participation as a team.

View profile View Linkedin Profile

Available now

Mexico
5 years+ experience

I build and work in the job as would be my own project.

Hi there! I'm a blockchain full stack developer with 3 years of professional experience based in Mexico City, México. Previously I've worked as a blockchain developer at maniac1.com, bitsports.co, monopolio.io, Greenex crypto, and origin foundation. I'm an expert at blockchain, ethereum, solidity, smart contracts, MEV, DEFI, NFT and DAOs and have significant experience using solidity, javascript, typescript, react, next.js, hardhat, RUST and Ethereum.. I've worked on various Blockchain projects in my free time. For example I created a flashbot that execute a smart contract to order the transactions, and get a fee. I'm currently looking for a Full-time as a blockchain developer. If you're interested in working together, please contact me. CANDYSHOP

View profile View Linkedin Profile

Available now

India
0-2 years experience

WEB , BLOCKCHAIN and many more

Hi there! I'm a Prathamesh with 1 years of professional experience based in India . Previously I've worked as a Full Stack Intern at Pritam Enterprises. I'm an expert at Full Stack (MERN) and Blockchain and have significant experience using Web development and smart contracts . I've worked on various Blockchain projects . I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] as a developer . If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Japan
5 years+ experience

Web3/Chain Engineer

Hi there! I'm a web3 engineer with 12 years of professional experience based in web3 technology. Previously I've worked as a substrate/chain engineer in Engi.Network. My role was to build PoW-based consensus engine with 3 nodes and deploy ink! smart contract using Rust. In recent 4 years, I also worked in 3 solana DeFi/DeX companies. Atlasdex Finance, Cropper Finance, Superbond Finance. I mainly focused in developing DeFi and Dex, NFT minting and marketplace projects on Solana and Ethereum, Binance network. The main projects that I can show you are Cropper Finance and Atlasdex Finance. There, my role was to develop smart contracts for Swap/Stake/AMM/Yield Farming protocols using Rust and Anchor framework. In addition, I implemented Bridge between Ethereum and Solana, Binance and built stable coin implementation for ATS. I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] as a web3 engineer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

United States
5 years+ experience

Blockchain Full Stack Developer

Hello, I'm a highly skilled Full Stack Blockchain Developer with 6 years of experience, specializing in smart contract development for blockchain platforms such as Ethereum, Binance Smart Chain (BSC), Polygon, and Solana. My expertise extends to creating and deploying secure and efficient smart contracts, as well as developing blockchain-based game mechanics, including in-game cryptocurrencies, NFTs, and decentralized asset ownership. Throughout my career, I've demonstrated a deep understanding of blockchain technology, decentralized systems, and programming languages such as Solidity, C#, and JavaScript. I've collaborated with cross-functional teams to deliver blockchain solutions and full-stack applications that align with business objectives, proving my ability to overcome complex technical challenges in the blockchain space. My experience includes roles as a Software Engineer at Cradles, where I developed blockchain-based game mechanics and smart contracts on various platforms, and as a Blockchain Engineer at Kepler Homes, where I implemented a dual token economy system and integrated blockchain technology into existing game architectures. As a Web3 Full Stack Developer at Arc Market, I built various smart contracts, token bridges, and NFT minting and marketplace sites. Earlier in my career, I served as a Junior Blockchain Developer and a Software Engineer Intern at Adware Technologies, contributing to the development and deployment of smart contracts and blockchain-based gaming prototypes. I hold a BS in Computer and Information Science from Capitol Technology University, and I'm proficient in a wide range of programming languages, blockchain technologies, frameworks, and development tools. My passion for blockchain technology drives my continuous learning and research in this dynamic field.

View profile View Linkedin Profile

Available now

Poland
5 years+ experience

I'm senior Java developer and I want to get into blockchain

Hi, I'm Java developer with almost 6 years of professional experience. I live in Poland and I work remotely for 2 years. Now I work as blockchain developer in Future Processing. I started this new role on April 2022. So far I created small smart contract for storing footprint hash. It is implemented using Hardhat framework. My next task was to bring back old project (betting app for World Cup, this is completely internal application). This app is using Ethereum but is not deployed to mainnet - we have our own, private network. Technologies: React, Solidity, web3.js, Express.js, Truffle. Now I started learning Hyperledger Besu. My previous role in Future Processing was senior Java developer. I was working in small team (up to 4 developer and one PM) with our British client. I was responsible mostly for developing new features. I was very independent, almost every time I had to contact with client for more details about tasks. Before Future Processing I worked: - Objectivity (01.2020 - 08.2020) - Java, Spring 5, Spring Boot 2, Angular, Typescript, Postgres - Ultimo (01.2019 - 12.2020) - Java, Spring 5, Spring Boot 2, Angular, Typescript, MongoDB, Oracle DB - Sii Poland (05.2015 - 12.2019) - Java, Spring 2 - 5, Spring Boot 2, Web Sphere As you can see, my previous experience is mostly Java-oriented. Last year I decided to change career direction to blockchain developer so I started to learn this new technology. I started with reading "Mastering Bitcoin" and "Mastering Ethereum". I tried Corda (as Java-based blockchain technology), in Future Processing I'm learning Ethereum and related technologies. At home I learn Rust and Polkadot/Solana blockchains.

View profile View Linkedin Profile

Available now

Singapore
5 years+ experience

Full-stack Blockchain developer | golang blockchain protocol engineer | comos chain engineer

Hi there! I'm a full stack blockchain developer with 5 years of professional experience based in Singapore. Previously I've worked as a blockchain developer at BlockX company. I'm an expert at golang/solidity/defi and have significant experience using web3 technology. I've worked on various Blockchain projects including defi/dex/nft/p2eGame and cosmos chain creation. I have the following skill set : * Language: Solidity, Golang, Javascript, Python, C++, Rust * New Blockchain Creation with golang, cosmos sdk, tendermint core, geth * Smart Contract development/test/audit of ERC20, ERC721, ERC1155, BEP20, SPL * OpenZeppelin, Truffle, hardhat, Remix * Experience in Ethereum, BSC, Polygon, Solana, Avalanche, Terra, Evmos chain * Decentralized Finance DApps such as Lending, Staking, Farming, Banking, CEX/DEX * NFT Apps such as minting sites and marketplace * Typescript, Web3.js, Ethers.js for Blockchain Interactive with Smart Contract * Familiar to defi protocols including Olympus DAO, Pancakeswap, Uniswap, Node platform, Titano, Safuu, Libero, Bakedbeans, BNBMiner * Familiar to blockchain infrastructure including POW, POS * Backend with Golang/Python/NodeJS/GraphQL on blockchain network * Frontend with React.js, Next.js * Version control with Git and Github I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] job as a blockchain developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

United States
5 years+ experience

Blockchain Full Stack Developer

Hi there! I'm a Blockchain Full Stack Developer developer with 7+ years of professional experience based in Miami, FL. Previously I've worked as a full stack developer at Omniverse Labs in NYC and other companies. I'm an expert at Solidity, Web3.js, Ethers.js, React.js, Node.js and other javascript frameworks and have significant experience using Blockchain. I've worked on various Blockchain projects like ERC-20, ERC-721, ERC-1155 tokens, building dex / nft marketplaces / lottery / farming / pools and etc. I'm currently looking for a FULL TIME as a Blockchain Full Stack Developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Canada
5 years+ experience

Senior Web3 fullstack Engineer

I have solid experience in Ethereum and Solana.

View profile View Linkedin Profile

Available now

United States
5 years+ experience

Experienced L1/Substrate Blockchain Developer(Rust)

Hi there! I'm a Substrate Developer with 4 years of professional experience (1.5 in Rust/Substrate)based in Washington, D.C. Previously I built Substrate-based blockchains, parachains, and bridges at Parity technologies. I've worked on all parts of Substrate, and in addition to building pallets have had some unique experiences building custom offchain agents, working with parity bridges and XCM. I'm currently looking for part time and freelance roles as a Rust developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

China
5 years+ experience

experienced developer and fan of web3

Hi there! I'm a blockchain developer with 15 years of professional experience based in Beijing. Previously I've worked as a chief scientist at starmine and big data architecture in Expedia. I'm an expert at rust/go/solidity/scala/c++ and have significant experience using Ethereum, Cosmos-sdk, Substrate, Hadoop, Spark. I've worked on various Blockchain projects before. I'm currently looking for a FREELANCER as a senior blockchain developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Canada
5 years+ experience

Organized, methodical and a keen eye for detail results in solid coding and trustworthy program.

Hi there! I'm a Full Stack Blockchain Developer with 8 years of professional experience based in Toronto. Previously I've worked as a Full Stack Blockchain Developer at SWITCH CREATIVE SOLUTIONS INC. I'm an expert at Smart contract and Web3 integration. I've worked on various Blockchain projects. For example I created Dapp, Dex, NFT marketplace, Pancakeswap fork, DAO projects. I'm currently looking for a PART TIME / FULL TIME / FREELANCER as a Full Stack and Blockchain Developer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

Canada
5 years+ experience

Senior Software Engineer

Hi there! I'm a senior software engineer with 8 years of professional experience based in Australia and Canada. Previously I've worked as a Smart contract engineer at Blade Labs and several protocols and ecosystem on Solana network. I'm an expert at Rust, C/C++, and TypeScript and have significant experience using Anchor, Substrate, and React. I've worked on various Blockchain projects professionally. For example I created a boosted staking vault smart contract that drives recursive lending/borrowing/staking functions over the other external DeFi protocols at Blade Labs. I'm currently looking for a full-time contractor role as a software engineer/smart contract engineer. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now

United States
5 years+ experience

Security focused Developer

Hi there! I'm a full stack developer with 6 years of professional experience based in United States. Previously I've worked as a Full Stack Developer at Hyperion Solutions and... I'm an expert at Solidty, Rust, React, and Go and have significant experience using blockchain I've worked on various Blockchain projects NFT marketplace, Defi and Dapps. For example I created a royalty NFT marketplace. I'm currently looking for a freelancer as a contract role. If you're interested in working together, please contact me.

View profile View Linkedin Profile

Available now