Hire an Expert Cosmos Developer now

BlockchainDevs is the #1 Marketplace for Freelance Web3 Developers.


Showing 73 developers. Reset filters

Developer's avatar
  • Nigeria
  • 5 years+ experience

A self motivated and Passionate web3 Frontend Engineer

Hi there! I'm a Front End Engineer with 4+ years of professional experience based in Abuja, Nigeria. Previously I've worked as a Front End Engineer at Glitter Finance, A Web3 and Defi Company transforming the Bridging Space. I'm an expert at working with frontend tooling and libraries like React, Next js and as well jquery. I am experience in using Web bundling Webpack and babel libraries. For testing I use jest and the react testing libraries. While having a bulk of experience in the frontend I have also backend experience in Node js and Express for server side tools. I've worked on various Blockchain projects both Professional and as Side Projects. I'm currently looking for a Part Time, Full Time, Freelancer as a Front End Engineer. If you're interested in working together, please contact me.

Developer's avatar
  • Singapore
  • 5 years+ experience

Software Engineer

Passionate, solution-oriented and problem solver with 5+ years of experience building Web2 software, and 1+ years of experience building Web3 software. Skilled in communication, collaboration, and designing software. Proficient in utilising a variety of tools, libraries and frameworks to deliver business-specific programs.

Developer's avatar
  • South Africa
  • 0-2 years experience

I'm a solidity developer that loves to explore the world of web3 and challenge myself to build great projects of value.

Hi there! I'm a Solidity developer with and have been working in Web3 since April. I am based in Pretoria, South Africa. I'm open to relocating should the opportunity meet my financial needs. Previously I've worked as a smart-contract auditor at a P2E gaming platform that is currently planning its launch and I currently am assisting some developers in building an African NFT marketplace. I'm an expert at writing smart contracts and using hardhat to test and deploy them. I also have significant experience using Nextjs, Solidity, Hardhat, Node.js, Ethers.js. Some of the blockchain projects I've done in my spare time include a simple DEX exnchange, an NFT Marketplace, a DAO, an ICO and a few more. I have also participated in the Ethglobal hackathon and built a charity Gofundme type platform using Web3 tools. I'm currently looking for a Part-time, or Full-time role as a solidity developer. If you're interested in working together, please contact me.

Developer's avatar
  • 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.

Developer's avatar
  • 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.

Developer's avatar
  • Japan
  • 5 years+ experience

Full stack developer focused on blockchain

As a full stack developer, I have experience of web development for 9+ years and 3+ years of blockchain development. I have done many projects for social networking, e-commerce, and Blockchain projects. During development, I have more than 42 happy customers and built more than 89 large and small projects. Recently, I has built several blockchain projects such as DEFI, Token Swap Tool, P2E Games, NFT Minting page and NFT Marketplace. If you have a good idea to start or grow a business, I can implement it successfully. If you need, you can contact anytime with me and discuss about projects. Cheers.

Developer's avatar
  • Canada
  • 5 years+ experience

I can complete any project.

Hi there! I'm a senior blockchain developer with 5 years of professional experience based in Canada. Previously I've worked as a smart contract developer at IoTeX and backend developer in Cronix. I'm an expert at blockchain fields and have significant experience using smart contract . I've worked on various Blockchain projects in fulltime. For example I created a smart contract for dex, borrow/lending, NFT marketplace and financial protocol. I'm currently looking for a part time or full time as a backend developer. If you're interested in working together, please contact me.

Developer's avatar
  • 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

Developer's avatar
  • 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!!!

Developer's avatar
  • Singapore
  • 5 years+ experience

Senior Blockchain Developer | Full-Stack Engineer

Hi there! I'm a senior Blockchain Developer with 4 years of professional experience based in Singapore. Previously I've worked as a Software Engineer at Kryptomon and I'm sure that is the big plus for describe me in more details. I'm an expert at Smart contract, EVM and have significant experience using Solidity, Rust, Haskell and so on. I've worked on various Blockchain projects NFT marketplace , Crypto Trade bot and so on. For example I created a Kryptomon Marketplace from scratch. I'm currently looking for a Full-time as a Full-stack Developer. If you're interested in working together, please contact me.

Developer's avatar
  • India
  • 2-5 years experience

I have worked in a couple of startups with expertise in Blockchain and Backend development. I have built systems from scratch and keen to learn any tech stack.

Hi there! I'm a Backend Blockchain Developer with 1 years of professional experience based in Bengaluru. Previously I've worked as an AWS Cloud Developer at Tata Consultancy Services. I'm an expert at Solidity, Ethereum, Backend technologies like NodeJS, ExpressJS, etc. I've worked on various Blockchain projects during my internship as well as professionally. For example I created a smart contracts for an NFT marketplace. I've also built smart contracts to trade money for Carbon Credits. I have also built a tutorial about Staking on Ethereum. I'm currently looking for a full time opportunity as a Backend/Blockchain developer. If you're interested in working together, please contact me.

Developer's avatar
  • 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

Developer's avatar
  • 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.

Developer's avatar
  • Canada
  • 5 years+ experience

Solidity | Rust | Javascript Developer

Feedbacks from clients... ---------------------- Phillip is an amazing developer that's extremely dedicated to his jobs. His robust knowledge of web3 & web2 programming, along with his passion for problem solving was impressive to say the least. Phillip helped in developing complex scripts to help us generate metadata & art for RatDAO. His patience and problem solving skills also shined through on the smart contract development of our NFT mint. Phillip helped us launch a smooth, pain-free mint with zero hiccups. Aside the smart contract development, Phillip's support along the way was great. He went above and beyond for us when we needed it. I knew I could always count on him for help when brainstorming new idea's, fixing bugs and additional smart contract development. I highly recommend Phillip as he's a dedicated & passionate problem solver to have on your team. ---------------------- Phillip was the incredibly talented dev for our 'just for fun' NFT Project, SOL Summer. Phillip is incredibly smart, and on top of current happenings. Whenever we ran into a sticky moment, Phillip trouble shot the issues and came up with strong solutions. I look forward to working with Phillip again soon, and you'll be lucky if you work with him too! ---------------------- Phillip was very professional and amazing to work with. He was very detailed and saw the project through to the end. Very knowledgeable w/ Rust and Candy machine! Really appreciate Philip's assistance with our project! --------------------- We worked with Philip for the smart contract of the Toonlands project. He did a very nice and clean job. --------------------- Phillip and I worked on an NFT project, actually a gaming & metaverse ecosystem. He is a great developer. I recommend him. --------------------- Thank you for taking time to read my profile. Regards, Phillip

Developer's avatar
  • Canada
  • 5 years+ experience

Blockchain Lancer who loves DApp world

Hi there! I'm a normal computer engineer with 6 years of professional experience based in Canada. I've worked as a lead blockchain developer at several small web3 companies. I'm an expert at backend development including smart contract works and have significant experience using Web3. I've worked on various Blockchain projects. I mostly code in Javascript / Typescript and golang. but sometimes I use rust. BSC and SOLANA is the most familiar ones for me. I always loves learning from you! if you have any great idea, share with me and make it LIVE! Thanks.

Developer's avatar
  • Canada
  • 5 years+ experience

Senior Blockchain/JavaScript Developer

Hi there! I'm a senior full-stack blockchain developer with 7+ years of professional experience based in Toronto, Canada. As a full-stack blockchain developer, I have been deeply engaged with blockchain technologies. Before jumping in blockchain world, worked at several companies as a web developer. Since 2017, I've been researching, developing and deploying with enthusiasm web3 projects. Now, I have deep knowledge of Ethereum, Bitcoin, Solana, or other Blockchain technologies and various consensus protocols. I'm currently looking for a PART TIME / FULL TIME Contract as a blockchain developer. If you're interested in working together, please contact me.

Developer's avatar
  • United States
  • 2-5 years experience

My objective is simply to be the best web & blockchain engineer I can be and to contribute to the technology industry all that I know and can do.

Hi there! I'm a [JOB_ROLE] with [X] years of professional experience based in [LOCATION]. Previously I've worked as a [JOB_ROLE] at [COMPANIES] and... I'm an expert at [SKILLS] and have significant experience using [TECHNOLOGIES]. I've worked on various Blockchain projects [IN MY SPARE TIME or PROFESSIONALLY]. For example I created a [SMART CONTRACT WHICH ...]. I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] as a [JOB_ROLE]. If you're interested in working together, please contact me.

Developer's avatar
  • Canada
  • 5 years+ experience

Senior Developer

Hi there! I'm a Smart contract developer with 3 years of professional experience based in Canada. Previously I've worked as a smart contract developer at Marble and Crosswise companies. I'm an expert at solidity, rust, and javascript and have significant experience using Cosmwasm, Near, EVM, React, and so on. I've worked on various Blockchain projects professionally. For example I created smart contracts for DEX, NFT minting, staking and marketplace. I'm currently looking for a full time job as a smart contract developer. If you're interested in working together, please contact me.

Developer's avatar
  • Estonia
  • 5 years+ experience

Software engineer with a deep knowledge and great experience (13 years)

"Stay hungry, stay foolish," if I wanted to introduce myself, this one sentence is enough; in detail, I am an eager to learn, cheerful, self-management, and motivated person. I know all trend language and technology from the front-end(React, jQuery) to the backend(Node.js, Python, C++). I have excellent knowledge of DevOps(K8s, Docker, Nodejs, HaProxy, AWS, serverless, Kafka), extraordinary experience on data layer(SQL, NoSQL, ElasticSearch, Redis). I can investigate data and bugs with monitor systems (Kibana, Graphite, Logstash). All of this long list of abilities and experience build a unique personality who is eager to learn more and apply expertise to achieve more success.

Developer's avatar
  • India
  • 5 years+ experience

Experienced Software Developer in React, Web3, MEAN, MERN

Hi there! I'm an IT expert with 8 years of professional experience. Previously I've worked as a Senior Software Developer at Asurion and Aquanomix. I'm an expert at React.js, React-native, Angularjs, Python, Web3, Solidity, Node.js, MongoDB, and AWS, and have significant experience. I've worked on various Blockchain projects in my spare time. I'm currently looking for a freelancer as a Software developer or Web3 Developer. If you're interested in working together, please contact me.