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Netherlands
5 years+ experience

Senior solidity engineer, with focus on gas optimization

Hi there! I'm a Senior Solidity Engineer with 4 years of professional experience based in Amsterdam. I'm an expert at Solidity and have significant experience writing gas efficient Solidity (even assembly) and also omni-chain contracts. I've worked on various ERC20/ERC721 contracts and DeFi applications. I'm currently looking to be a freelancer as a Solidity Engineer, Auditor and optimizer If you're interested in working together, please contact me.

Available now

United States
5 years+ experience

Creative & Enthusiastic Web3 Full-stack Engineer | Professional with JavaScript/TypeScript/React/Python

* Feedback from clients... - Takeo is an amazing developer who's extremely dedicated to his job. His robust knowledge of web3 & web2 programming, along with his passion for problem-solving was impressive, to say the least. Takeo helped in developing complex scripts to help us generate metadata & art for RatDAO. His patience and problem-solving skills also shined through in the smart contract development of our NFT mint. Takeo helped us launch a smooth, pain-free mint with zero hiccups. Aside from the smart contract development, Takeo'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 ideas, fixing bugs, and additional smart contract development. - Takeo was the incredibly talented dev for our 'just for fun' NFT Project, SOL Summer. Takeo is incredibly smart and on top of current happenings. Whenever we ran into a sticky moment, Takeo troubleshot the issues and came up with strong solutions. I look forward to working with Takeo again soon, and you'll be lucky if you work with him too! - Takeo 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! - Takeo and I worked on an NFT project, actually a gaming & metaverse ecosystem. He is a great developer. I recommend him. Thank you for taking the time to read my profile. Regards, Takeo

Available now

North Macedonia
5 years+ experience

coinhero3546

Hi I am an individual Full-stack Web3 Engineer with 8 years experience. My Skills are - Web3, BlockChain, Solidity, Rust, Solana, Smart Contract, Ethereum, Ganache, Truffle, Polygon, Hardhat, Alchemy - Javascript,Landing Page, ChatGPT, Web Scrapping, Beautiful Soup, Data Mining - React, Redux, Next.js, Vue.js, GraphQL, MySQL, Node.js, Express.js, PHP, - Python, Django, Flask, Pytorch, - Artificial Intelligence, Neural Network, Deep Learning, Computer Vision, Computer Graphics, three.js, Babylon.js , - Android, iOS, Java, Swift, React Native, Flutter, - Game Development, Unity, Desktop Application, C++, C#, OpenCV I am working as a freelancer. If you're interested in working together, please contact me.

Available now

India
2-5 years experience

I have no programming experience in Web3, but I intend to learn it from all sides to increase my knowledge level to be a good Web3 developer one day.

Hi there! I'm a Senior Automation Developer with more than 7 years of professional experience based in India. Previously I've worked as a Dot net developer at Atos, Econship Pvt Ltd. I'm an expert at Python and have significant experience using Python in Automation and Web Development. I've worked on few Blockchain projects in my spare time. For example I created a smart contract which could used as a governance to build a smart city. 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.

Available now

Colombia
5 years+ experience

Full-stack blockchain developer with extensive Web3 experience; goal-oriented, quick learner, and problem solver.

Hi there! I'm a Daniel Márquez with 8 years of professional experience. Previously I've worked as a Blockchain developer in various companies, I consider myself as a full stack web3 developer very goal-oriented and a person that focus on solving obstacles. I'm an expert at EVM Blockchains integration and also have a lot of experience with Stellar network, I have significant experience using React, Node, Typescript, Solidity, Truffle or Hardhat, Ganache and many other tools for frontend and backend development. I've worked on various Blockchain projects , I've created from NFT minting pages and smart contracts to entire Stellar Anchor implementation with banking systems. I'm currently looking for a part or fulltime as a Blockchain Developer. If you're interested in working together, please contact me.

Available now

Vietnam
2-5 years experience

Cardano blockchain developer

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.

Available now

Italy
2-5 years experience

I am a smart contract developer willing to learn, I have experience developing smart contracts that interact with various defi protocols and others such as Nfts, ERC20 tokens, Multi-sig wallets and more.

Hi there! I'm a Smart Contract Developer with [2] years of experience based in Argentina. I have significant experience using Foundry, Hardhat, Brownie, scaffold-eth and Ape frameworks. I've worked on various Blockchain projects IN MY SPARE TIME. For example I created a SMART CONTRACT WHICH Interacts with various DeFi Protocols, i completed the SpeedrunEthereum track. I'm currently looking for a [PART TIME / FULL TIME / FREELANCER] as a [Smart Contract Developer]. If you're interested in working together, please contact me.

Available now

Kazakhstan
2-5 years experience

I'm a Software Engineer with interest in full stack development

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.

Available now

Morocco
2-5 years experience

Ambitious

Hi , - im a blockchain (smart contract / fullstack ) developer, experienced as a freelancer in that field. My strengths are critical problem solver , creative development ideas .

Available now

India
2-5 years experience

I am an avid learner.

A seasoned backend developer with 4 years of experience working with a fintech firm named Arcesium India Pvt Ltd. I have learned Haskell and Plutus (Plutus Pioneer Program 3rd Cohort) and have some experience working on Web3 applications on Cardano blockchain.

Available now

Vietnam
2-5 years experience

I am an experienced developer with a strong background in JavaScript, including 6 years of experience, and expertise in React.js with 3 years of experience. I also have proficiency in ASP.NET. I have a proven track record of developing high-quality software applications, working collaboratively with team members, and staying up-to-date with the latest technologies and industry trends. I have excellent problem-solving skills and a passion for continuously learning and improving your skillset.

Hi there! I'm a Fullstack with 6 years of professional experience based in Vietnam. 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.

Available now

Italy
5 years+ experience

Senior Python developer

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.

Available now

Nigeria
2-5 years experience

I love problem solving.

Hi there! I'm a Michael Emmanuel with 5 years of professional experience based in Nigeria. Previously I've worked as an Editor, web developer and content creator for several companies. I'm an expert at Web Development and have significant experience using other digital skills to solve problems. I'm currently looking for a PART TIME, FULL TIME, FREELANCE as a social media manager, content creator, web developer. If you're interested in working together, please contact me.

DeFi
NFT

Available now

Italy
2-5 years experience

Not good at promoting myself but we can have an honest chat

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.

Available now

Canada
5 years+ experience

I am a senior fullstack developer with more than 3 years of experiences in dapp development

Hi, How do you do? I’ve read your job notifications carefully and think that role fits me perfectly. I am a full stack developer who has more than 8 years of experiences in software development. Until now, I developed many projects including Website, Desktop app, Mobile app and dapp. My main programming language is JavaScript, TypeScript and python. While I used MERN stack in website development, Electron in desktop app, react native in mobile app. Also I am very familiar with Django as backend framework. In the past, I worked as a senior frontend developer, a senior fullstack developer and a lead smart contract developer. Especially, I have enough experiences with developing dapps such as NFT projets and DeFi apps. My main tech stack in dapp development was react, web3, Node.js, subgraph and solidity. I used MUI as UI kit, redux as state management, tailwindcss for styling, web3.js and ethers.js module for integration with blockchain in frontend development. Also, I used solidity, rust and move as smart contract language, while using node.js, Django, subgraph as backend. In the past, I developed several dapps. These are typical projects I built in the past. https://rubyswap.finance/ - Dex Platform for crypto trading - React.Js, Smart Contract, Web3, Figma https://monox.finance/ - a new DEX for capital inefficiencies caused by liquidity pairs, by using a single token pool model https://app.bidify.org/ - NFT Marketplace Mint and Auction - React.js, TailwindCss, Smart Contract https://xion.finance/ - DeFi Xion Global cross-chain Staking - crypto shopping up to 100% cashback rewards - Angular, Solidity. My experienced industry is follow: E-commerce, SaaS, Booking, Defi, DApp, NFT marketplace, Gaming platform, Metaverse. My skills are follows: HTML, SASS/LESS, BootStrap, TailwindCSS, UX/UI JavaScript, ES6, TypeScript, React.JS, Angular, Python React Native, Expo, Electron Node.JS, Next.JS, Express, Django, GraphQL MongoDB, PostgreSQL, MySQL, DynamoDB, AWS My blockchain experiences are follows: Ethereum, Binance Smart Chain, EVM networks, Aptos, Solana DeFi (AMM models, Yield Farming, Staking, Lquidity Pools), DEX, NFT Smart contract development using Solidity, Rust and Move language My github is follow: https://github.com/snowman108 Looking forward to hearing from you for the further progress. Best Regards.

Available now

Canada
5 years+ experience

Well-qualified Blockchain Developer familiar with wide range of programming utilities and languages.

Hi there! I'm a Full Stack Developer with 8 years of professional experience based in Canada. Previously I've worked as a Lead Blockchain Developer at Apifiny and Senior Full Stack Developer at Gearheart Inc. I'm an expert at Web Development and Blockchain Development and have significant experience using MERN/MEAN stack, Solidity, Rust, Move, Web3, Etherjs. I've worked on various Blockchain projects professionaly. For example I created a Smart Contract for https://treedefi.com and https://bscpad.com. I'm currently looking for a Full Time as a Blockchain Developer role. If you're interested in working together, please contact me.

Available now

India
2-5 years experience

Problem-solver.Passionate.Tech-Enthusiast

Hi there! I'm a Full stack developer with 1+ years of professional experience based in India. I have significant experience using ReactJS, Typescript, Java, Python, SCSS, Redux. I've worked on various Blockchain projects in my spare time. I'm currently looking for a part time or freenlacing job as a blockchain developer. If you're interested in working together, please contact me.

Available now

Switzerland
5 years+ experience

Senior Blockchain Full Stack Developer

As a passionate senior software engineer & blockchain developer with over 8 years of experience and good temper and full potential, I participated in many software projects with my skills (OOP, Web, E-commerce, Mobile App). I am a highly capable blockchain developer to research, design, implement, and distribute a secure blockchain-based network and also to make reliable, scalable, reusable applications and interfaces on top of blockchains. Always ready for the challenge and handicap to make next-generation and innovation of the growing world!

Available now

Switzerland
2-5 years experience

Smart contract developer / security auditor

Hi there! I'm a Blockchain Security Engineer with 1 years of professional experience based in Switzerland. Previously I've worked at Credit Suisse. I'm an expert at python and Solidity. I've worked on various Blockchain projects. I'm currently looking for a part time or freelancer as a blockchain developer or security auditor. If you're interested in working together, please contact me.

Available now

Chile
5 years+ experience

Web3 and Smart Contract Developer with more than 5 years of experience.

Hello everyone. I am a smart contract developer with 5 years of professional experience. Previously I have worked as Blockchain Developer at Pirates World, Nudara, Risebit.co, Kurusetra and other blockchain projects. I am an expert in web3 development, javascript (Angular in frontend and Nestjs in backend), Google Kubernetes Engine and Smart Contracts with solidity and have significant experience using chainlink, truffle, Open Zeppelin, Wallet Connect, web3.js and ether.js technologies. I can create contracts for: ERC-20 token with antibot systems, blacklist, transaction tax. NFT ERC-721 with randomized rarity systems through chainlink VRF or cryptographic signature. NFT ERC-1155 Crypto mining system. Marketplace for tokenized and oracularized NFTs. IDO/INO Systems. Lending and Borrowing. Governance. Flexible/Blocked Staking with variable or fixed APR. Cryptographic signature login systems. Click to Earns as Cryptomines/CryptoLegions/CryptoSurvivor. Play to Earns. I am currently looking for a freelancer/part-time/full-time job as a Web3/Smart contract Developer. If you are interested in working together, please contact me.

Available now