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Blockchain Developer
Active 2 days agoAvailable now📍INDIASolidity Ethereum Smart Contracts Web 3 Blockchain Dapps AWS Cloud Cryptography ERC20 ERC721 NFT EVM JavaScript Hardhat Truffle Go Git GCPSummary • Blockchain Developer with 8+ years of software development experience • Proficient in Smart Contract design, development, and deployment. • Strong programming skills in Solidity, Python, and JavaScript with TDD • Hands-on experience in ERC20, ERC 721/1155 token standards, and token development on EVM chains like Ethereum & Polygon. • Familiarity with enterprise blockchain solutions, consensus algorithms, and P2P networks • Excellent knowledge of blockchain use cases like Cryptocurrency, Smart Contracts, Wallets, Digital Assets, Tokens, Decentralised Finance, NFT, NFT Marketplace, asset bridges, Oracles, and ZK protocols. • Expertise in cryptography, digital signatures, hashing, contract security, and gas optimisation. • Skilled in databases like MySQL, Hive, Google BigQuery, S3, and IPFS • Web 3 libraries like Web3.js, Ethers.js, matic.js, Alchemy SDK, Polygon zkEVM • Front-end tech like HTML/CSS, JS, React JS , Backend tech like Node JS. • Integration libraries like Openzeppelin, Chainlink, Opensea, Infura • Cloud services like AWS, Amazon Managed Blockchain, Microservices • Tools like Docker, ChatGPT, GitHub and UnixSDET-QA Automation Engineer-Automation Tester
Active 4 days agoAvailable now📍Singapore1. I’m senior software development engineer in test (QA Lead) - with more than 10 years of experience 2. Last 5 years - I only focus on work with Blockchain projects (Crypto Exchanges, DEFI, NFT, Tokenization... ) 3. I have deep knowledge about testing of Crypto Currency Exchange (CEX &DEX), Dapps, DEFI, NFTs, Crypto Marketplace 4. I have long successful experience in startups from seed round till final steps 5. I have a good skillset and preparatory test tools for work with Dapps like Metamask wallet, Ganache, Truffle, Infura.- Hey, nice seeing you here! Here's some of my story: # Currently I've been developing NFT products for Big Head Club, a company founded by Mack Flavelle. Worked as a Full-stack Developer, but mostly dealing in the web2 side of things (front-end, serverless functions, databases if needed), while interacting with smart contracts through libraries such as ethers.js, wagmi and providers such as Alchemy and Infura. Did contribute code reviews, architectural considerations and a little code to the Solidity side of things though. # In the past I've been a Full-stack Developer in, and eventually lead of, a compact and efficient team at a SaaS company which serves Brazil's biggest franchises, such as Burger King and Stone. I've helped the company more than double its MRR two years in a row, spearheading development of chat systems, ticketing systems, checklist and data visualization apps, all while mentoring junior developers, implementing CI/CD automation and creating reliable cloud infrastructure.
Full-stack Developer
Active 6 days ago WEB3 Product Manager / Software- Blockchain developer
Active 16 days agoInfuraJavaScript Solidity CSS Metaplex Selenium Anchor WordPress PHP Alchemy Moralis The Netlify Remix.ethereum Node.js IPFSFilecoin Cargo Jenkins CICD pipelines Web3.js React.js Next.js AWS Hardhat MongoDB Postman GITI am a Web3 Product Manager with experience in blockchain and smart contract development. My expertise lies in DeFi smart contracts and NFT development. I have a deep understanding of blockchain fundamentals such as smart contracts, Web3, and DAOs, and I am knowledgeable about decentralized exchanges and other DeFi protocols. I have developed applications on the Ethereum and Solana blockchains as well as Polygon layer 2 side-chains. I have created, compiled, tested, and debugged smart contracts using Solidity, Rust, and JavaScript languages. I also have experience with full-stack development using various languages and web frameworks, including JavaScript, Flask, PHP, React/Express/Node.js, MYSQL/MongoDB, Serverless/Lambda, S3, EC2, Cloud9, and SAM CLI development on AWS Cloud. I have worked collaboratively in cross-functional teams to build web3 platforms with a focus on IT modernization and digital transformation.Computer Engineering
Active 2 months agoAvailable now📍El SalvadorInfuraRemix HardHat Truffle Ganache Ethers.js Web3.js OpenZeppelin Alchemy Oracles Chainlink IPFS TheGraph zk-SNARKs Zokrates Web3 Dapps ERC-20 Tokens ERC-721 NFTs DAOs Defi Solidity Java JavaScript TypeScript SQL HTMLCSSC++ C# Python XML JSON Next.js Node JS React Angular Spring MVCBoot JPA Hibernate JUnit jQuery AJAX Bootstrap Ethereum EVM Hyperledger R3 Corda Windows Linux Android Mobile Applications PostgreSQL PostGIS Microsoft SQL Server Oracle MySQL MongoDB InfluxDB Sybase Git Github Version Control Apache Tomcat Docker Grafana Photoshop Unity Android Studio Crystal Reports SCRUM REST API.I graduated CUM Laude with an average mark of 9.27 during my university career. Due to my performance, the university awarded me with the 2021 Academic Excellence Bursary, which is only given to the best student of the year. I have 2 years of experience as an Analyst/Programmer. As an Analyst I am able to write quality functional specifications based on user requirements. As a Programmer I can translate functional specifications into code with surprising ease, delivering quality programs and meeting deadlines on time.- Dynamic and creative software developer with over 5 years of experience in producing robust code for high-volume companies. Eager to support the dev team at Sharetempus Inc. with top-notch coding skills. In previous roles, doubled code-efficiency of Consensus Base Inc., Deep understand of POS vs POW and Dapp development experience. While working on the Dapp development, developed smart contracts using Solidity & Rust. For Dapp and Smart contract development and audit, I have used Web3, Solidity, Hardhat, Infura, Truffle, MIST/Remix. Deep understanding of the Defi-EcoSystem and its sub-services (Lending Pools, AMMs, Assets Managements)
Solidity Developer
Active 3 months ago - Hi I am full stack blockchain and web developer. I have used Solidity to deliver smart contract on ETH by using ERC20, 721, 725 and 1155 protocols such as Tether and NFT. Also by using this, I have delivered I published smart contract and build web-wallet and mobile-wallet for token management. In addition to these, I have done some of crypto currencies trading platforms by using web3 and scatter libraries. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Web/Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Flash Loans ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Linos Share, BestMining like MLM Crowdfunding HYIP Platforms ✔ ICO, STO, Blockchain Copyrighting and White paper ✔ Token Design - Stable coins, Utility, Security, Investment, Dividend coins ✔ API Development and Integration: blockchain.info, inrura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Yearn, UniSwap, Curve, Balancer, Synthetic, Compound, Fulcrum, dYdX, Sushi Swap, Zapper, Maker, Polkadot, Substrate, WBTC, mStable, Alchemy, (BellaProtocol), MLM, NFT, BakerySwap, Pickle, UMA Project, YFV, YFII, dForce, Swerve, Zoom Protocol, Pancake Swap. ✔ Blockchain stack : Web3, Solidity, Infura, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, TRON, USDT, YFI, Bel ✔ Wallets and Clients: MEW, Parity, Gemini Mist, Metamask, Ganache Web Stack: ✔ Web3Js, Solidity, Truffle & Hardhat ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/ Typescript, ReactJS/NextJS, NodeJS/NestJS ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing) For example, I have worked on https://omen.eth.link/, https://minty.art, https://app.fullhouse.io/, https://pernamint.com/, https://marketcap.com/, https://dutchswap.com which is cryptocurrency exchange platform by using web3 with PHP and python So I think I am suitable on this position. I can work on client's working hours as good communication is key in remote freelancing. I love to solve problems and also have good attitude and ethics in development. I am ready to start working any time and can put over 40 hours per week so please contact me any time. Kind regards
MERN/Rust/Golang/Solidity/Blockchain Developer
Active 4 months ago Ethereum Developer
Active 5 months agoAvailable now📍ChinaI have worked with most of the fundamental frameworks of Ethereum such as Ganache, Remix, Infura, and Metamask as well as done tests using Truffle and have a great understanding of Ethereum in many ways. I have also studied the Yellow paper and understand the technical details of Blockchain in general. I have also done my own project based work over Ethereum on Github (https://github.com/ArthurBonsu/eth-thedrugtesttutor) and have had to deal personally and solve arising from writing Smart Contracts as wellFull Stack Web3 Developer
Active 5 months agoInfuraHTML5 CSS3 JavaScript React.js Redux Solidity MongoDB Ethers.js Web3.js Hardhat Truffle Remix IDE Moralis Alchemy IPFS Smart Contract Responsive Design Digital MarketingI began to my crypto journey in 2017 as a trader and investor like many people. In early 2021 i was started to highly interest about blockchain and web3 and started learn blockchain fundamentals like a sponge. I bought excellent courses, got certificates from top universities and watched many youtube tutorials about web3/blockchain development, after a while i began to build my own dApps with passion and dedication. Among of my dApps, my favorite is MintZilla. It's a codeless token generation platform and designed and developed all structures by me. MintZilla has many daily users right now and running truly autonomous and decentralized. Besides these, i have very strong digital marketing background. Right now, i'm mixing my coding skills, digital marketing experience and web3 enthusiasm in a perfect way and building interesting decentralized applications. You can check my skills and experience by reviewing MintZilla : https://www.mintzilla.club Best regardsFull Stack Developer
Active 6 months agoOpen to offers📍LaosSince 2017, I am a full-stack JavaScript developer with experience creating websites and web applications through building Technical and Functional specifications, Database Design, Development of web applications, Application delivery, Training of staff, Technical support, and writing documentation. I have professional experience working with Vue.js, AngularJS, Node.js, PostgreSQL. I am junior in blockchain development. I have knowledge in developing Ethereum Smart Contract in Solidity language and blockchain tools including hardhat, Pinata, NFT Storage, Infura, etherJS library.Web3/Blockchain Developer
Active 7 months agoAvailable now📍United StatesDear Hiring Manager As an upbeat and educated professional with hands-on experience in web development, it is a privilege to be applying to your company. I am dedicated and passionate about all aspects of web developments and am confident in my ability to be a great asset to your company. As a seasoned developer who is always excited to learn and hone my skills through practical applications, I look forward to the opportunity to improve both myself and the company with my talents as an employee. In my career as a blockchain and full stack developer, I have acquired an extensive knowledge of the web2 development as well as web3 development based on decentralized system. My ACM ICPC engagement career at Singapore Institute of Technology (SIT) provided me with rigorous training in algorithms and data structures and analytical thinking method. I’m well versed in C/C++, JavaScript , Solidity, Rust, GoLang, HTML, CSS and frontend frameworks such as React.JS, Next.JS, etc… While working in my previous role, I have gained a solid grasp of DeFi, DEX and NFT marketplace based on layer1 blockchain networks. I’m very familiar with the blockchain development tools such as ganache, metamask, truffle and hardhat coupled with Infura, IPFS, Chainlink and so on. And also, I have a deep understanding of gas fee optimization using layer2 side chains such as Polygon and Arbitrum and also hands-on experience in improving the security of smart contract using solidity design patterns such as Proxy, Storage, reentrancy and honeypot. In addition to my technical skills, I have strong interpersonal skills and as for my personal characteristics I would describe myself as a committed team player and self-starter. Thank you very much for your time and consideration. I look forward to proceeding with the hiring process and being able to contribute to your company to the absolute best of my ability. Sincerely, Ryan AshelyFull Stack Blockchain Developer
Active a year agoAvailable now📍ItalyDeep-Thinker, curious and resilient are my main characteristics. I am at ease when searching for new information and learning new concepts. I have strong problem-solving skills which have been developed over time, fostering my analytical side. I want to learn, contribute, and build among other peers who will always work for achieving great things.Solidity Engineer
Active a year agoAvailable now📍IndiaI have 12 year IT experience (Manual / Automation Testing), Agile/ Software Developer in Test. Gaming Domain. Blockchain platform & technology. SMART Contract (Solidity, ERC-20 & ERC-721, Truffle /Ganache, Metamask) Auditing Technique ,Vulnerability Mocha, Chai & OpenZeppelin Web3.js/ React.js/ Redux Basic knowledge of Infura & Heroku, Defi, DAPP, NFT Automation/Manual Testing (VB Script) NFT Marketplace Basic Knowledge of Layer2 solution – ZK Rollup Agile Methodology -Scrum/ Kanban / Mentorship / Microservices.Blockchain Developer
Active a year agoAvailable now📍ChinaDear Client. I have experience in Smart contract development with Solidity. I have used Solidity to deliver smart contract on ETH by using ERC20, 721, 725 and 1155 protocols such as Tether and NFT. Also by using this, I have delivered I published smart contract and build web-wallet and mobile-wallet for token management. In addition to these, I have done some cryptocurrency trading platforms by using web3 and scatter libraries. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Web/Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Flash Loans ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Forsage, Linos Share, BestMining like MLM Crowdfunding HYIP Platforms ✔ ICO, STO, Blockchain Copyrighting and Whitepapers ✔ Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins ✔ API Development and Integration: blockchain.info, inrura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Yearn, Uniswap, Curve, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, Sushi Swap, Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, DDorce, mStable, Alchemy, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pickle, Fortube, PerlinX, UMA Project, YFV, YFII, Synthetix, dForce, Swerve, Zoom Protocol, Pancake Swap. ✔ Blockchain stack : Web3, Solidity, Infura, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, TRON, USDT, YFI, Bel ✔ Wallets and Clients: MEW, Geth, Parity, Gemini Mist, Metamask, Ganache Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ PHP / Laravel / Yii (2) ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing) For example, I have worked on https://sorare.com/, https://marketcap.com/, https://dutchswap.com which is cryptocurrency exchange platform by using web3 and scatter.js with PHP and python I can work on client's working hours as good communication is key in remote freelancing. I love to solve problems and also have good attitude and ethics in development. Thanks for read. Best.- I'm on the younger side when it comes to professional developer experience, but my native fluency of the space, coachability, and learning speed put me a cut above the rest. I established a Blockchain youth organisation where I served as an instructor for Web3 development and solidity smart contracts. I've also worked as a De-Fi portfolio manager at a family office fund, not for disclosure. I'm ready to start formally building the future of De-Fi! And speaking of build, here's my stack! - Solidity - Truffle/Hardhat - The Graph - Remix + Debugger - Slither Static Analysis - Basic AMM Algorithms - NextJS/React - CSS + Tailwind - Alchemy/Infura/Moralis - NodeJS (context: Unit testing)
Solidity Engineer
Active a year ago Senior Blockchain Developer
Active 1 years agoAvailable now📍SerbiaSolidity React.js Typescript Web3.js Truffle Javascript Node.js API integration Google cloud AWS HerokuWeb developer focussed on Blockchain and Crypto-related projects, Crypto Gambling and Betting platforms, Trading Platforms and Exchanges, crypto lending and payment solutions. Last 5 years I have worked on several successful DeFi projects. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Multichain Web and Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Flash Loans ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins ✔ API Development and Integration: blockchain.info, inrura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Uniswap, Compound, Mooniswap, Sushi Swap, WBTC, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pancake Swap. ✔ Blockchain stack : Web3, Solidity, Infura, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, TRON, USDT, Solana ✔ Wallets and Clients: MEW, Geth, Parity, Gemini Mist, Metamask, Ganache Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ JavaScript/ Typescript, React.js, Node.js ✔ PHP / Laravel ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing)Blockchain magician
Active 1 years agoAvailable now📍South AfricaInfuraBlockchain Cryptocurrency Ethereum Smart contracts (Remix - Solidity) Truffle Ropsten Rinkeby Goerli Polygon React Native HTML JavaScript Web3 Nodejs Postman (RESTful API) NPM GIT IPFS PythonSelf taught and fast leaner. Completing my Master of Engineering in Electrical Engineering with a research topic: Development of a blockchain-based smart contract data provenance tracking application within a smart manufacturing environment.- I am an experienced full stack developer who loves crypto and DeFi. I am a crypto investor and I spend most of my spare time researching it. While I do not yet have professional experience working with it, I am studying it intensely. In the Udacity nanodegree program I have used the Bitcoin Core client to sign messages in my own simplified blockchain implementation and now I am using web3, Remix, Ganache, Infura and other tools to program with Ethereum smart contracts. I am a very fast learner and I have mastered other fields in short time frames before. For example I founded https://www.mendi.io/ which is a company that has created a brain training headband that can boost mental wellbeing, performance and health. I did the original research and development for the product involving software development, electrical & mechanical engineering, neurofeedback, neuroscience and physics. I usually get obsessed about something, and crypto + DeFi is this thing for me now. I am a very curious person and I love to learn. I will finish the Udacity nanodegree soon and I will start the Consensys Blockchain Developer Bootcamp the 1st of September so I will have a good grasp of Ethereum. I am currently working in one of Swedens largest Fintech companies so I know how build, operate and maintain software systems at scale. I love finance as a field and I am very interested in learning more about it, and also to build the future financial systems is my dream. While I do not meet all if your requirements, I believe I can be up and running in a very short time. Looking forward to hearing from you, -
Web3.js Developer
Active 1 years ago - I have developed arbitrage trading bots for the Defi ecosystem, lead the solidity development for a winning Chainlink hackathon NFT project, and currently work in the medical technology field as a robotics software developer. I have experience with many of the common tools and frameworks used in the Ethereum ecosystem, namely Truffle, Ganache, Remix IDE, Infura, Geth, and web3js. I have a strong preference for the Brownie framework due to its Python integration. My experience in the heavily regulated avionics and medical industries and their required stringent software testing standards lends itself well to blockchain development, when bugs can lead to catastrophic losses and exploit. As such, I take a test driven development approach to solidity development, writing high coverage unit tests before coding. My dream is to build world changing applications in the DeFi space, and help bring open and free banking to all. Chainlink hackathon winning project - https://github.com/cds95/crypto-champions
Solidity Developer
Active 1 years ago Blockchain | Web3 | DeFi | NFT | DApp Developer
Active a month agoAvailable now📍PolandInfuraSolidity Go Rust Python Java C++ C# JavaScript TypeScript PHP HTML CSS Web3.js Web3.py Ether.js Moralis Alchemy QuickNode Chainlink Hardhat Truffe Remix Ganache Anchor Cosmos-sdk Polkadot.js React React Native Redux Next.js Vue.js Solid.js WordPress Shopify SCSS SASS TailwindCSS MUI ChakraUI Bootstrap Node.js Express Laravel Yii2 Django Flask ASP.NETAs an accomplished blockchain developer with a decade of experience in web and decentralized app development, I possess a deep passion for the emerging possibilities of the web3 world. Since beginning my career as a blockchain developer in 2018, I have specialized in developing DApps on various chains including EVM, BSC, Cosmos, Polkadot, Solana, Near, and Aptos, honing my skills in NFT and DeFi smart contract development as well as web3 integration for the frontend. With my expertise in emerging technologies like ZK-rollup, Account Abstraction, Metaverse, and OpenAI, I am committed to delivering pioneering and impactful applications that improve the lives of millions worldwide.- I am very good at Rust, Typescriot, Javascript and Solifity, and well versed or I would say an expert in the blockchain technology and it's aspects. I have worked mybutts of learning and building open source products for the past 3 years and I can confidently say that I can do anything blockchain. I am passionate about the industry and will keep working in this industry for a very very long time. My LinkTree is https://linktr.ee/iamkhalifamba Rust, Solidity, Typescript, Javascript, NodeJS, EVM, DeFi, Substrate, APIs, Web3.js, Ethers.js, Polkadot.js, Truffle, Hardhat, Ganache, PoS, NPoS, PoW, Infura, Writing, Cryptography, libp2p. Remote will be most desirable. Best regards, Khalifa MBA (Muhammad-Jibril B.A.)
Business development
Active a month ago Senior Solidity / Blockchain Engineer
Active 5 months agoAvailable now📍VietnamI have ten years experience in Software development. I love blockchain and try very hard to study about blockchain technology.- I am an experienced Blockchain and AI engineer. I have an extensive 3 years of development and research experience and more than 2.5 year of Blockchain development experience. My Expertise - -Custom Blockchain Development -Smart Contracts Development -Bitcoin -Ethereum -Polkadot -Binance Coin Working Experience on following- -ERC20 -ERC223 -ICO (Initial Coin Offering) Development -Decentralised Application (DAPPS) Development -Crypto Wallets -Token Exchange -NFTs -Web3 -Smart Contract Development - Solidity and Ink -Crowd-sale token contract -MultiCrypto Wallet -Solidity -Truffle -MetaMask -Infura
Senior Blockchain Developer
Active 5 months ago Blockchain Dapp & Web App Senior Engineer
Active 7 months agoSolidity Smart Contract Haskell Node.js React.js Express.js Angualr.js Vue.js BootStrap Algorithm C++ C# MySql MongoDB Laravel Next.js Nuxt.jsBlockChain Master From March 2019 to April 2022 Sonfiey Combine Hongkong ✔️ DEX and Centralized Crypto Exchange ✔️ Advanced Trading Platform (Stocks / Forex / Option / Futures) ✔️ Smart Contract Development(ERC20 / BEP20 / ERC777 / ERC721 / ERC1155 ) ✔️ DeFi development(Pancake Swap / Uniswap / Curve / Compound / Mooniswap / Sushi Swap / Polkadot) ✔️ NFT Marketplace based on Opensea & Rarible ✔️ Blockchain stack (Web3 / Ethers / Solidity / Rust / Infura / Truffle / OpenZeppelin / Remix) Senior Web Developer From September 2016 to February 2019 Gray Cash Poland ✔️ CSS, HTML, Bootstrap ✔️ React.js, Node.js, AngularJS, Vue.js ✔️ CMS (WordPress, Shopify, Magento, Joomla, Drupal) ✔️ PHP framework (Code Igniter, Laravel) ✔️ developing REST APIs with NodeJS. ✔️ Blockchain(Solidity, Solana, NFT) ✔️ MySQL, Rest, GraphQL, MongoDB,Oracle, AWS. ✔️ modern ES5, ES6 standards ✔️ C/C++, Python, high algorithm- Hi. I am a senior Blockchain developer, specialized in custom cryptocurrency and blockchain development, having extensive experience in ICO, POS – Proof of Stake, blockchain website, web portal, & smart contracts application development. I am very proficient with the solidity programming language, Ethereum, token generation(Fungible and Non Fungible Token(NFT) development, digital currency exchange, proof of work (POW), and building innovative, highly customized, robust, feature-packed, and modular blockchain development solutions. As a full-stack web & blockchain developer, I have successfully delivered a wide range of custom cryptocurrency and blockchain development projects using the solidity language with eye-catching user-friendly UI design and high-end functionalities. I understand all aspects of developing Blockchain applications: design, architecture, development, and publishing. Plz review my previous worked projects. https://motogp-ignition.com/ https://www.saltswap.finance/ https://fullhouse.io (https://app.fullhouse.io) https://ezone.gg/ ✔Skillsets and experienced area - Cryto currency development with Web3, Solidity, Solc, Remix, Infura, Truffle, Ganache, Metamask, hardhat, Parity - Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins - Openzepplin, ERC 20, ERC 223, ERC 721, ERC 809, ERC 1155, ERC 1238 - DEX and Centralized Crypto Exchange & DApp - Audits & Analytics for cryptocurrency - Advanced Trading Platform and API - DeFi Development - Yield Farming & Liquidity Mining Protocols - Automated Market Making (AMM) protocols - Trading bots for cryptocurrency to exchange Bitcoin | Ethereum | TRON | USDT - P2P/Pool Lending and Borrowing - ICO, STO, Blockchain Copyrighting and Whitepapers ✔ API Development and Integration: blockchain.info, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Yearn, Uniswap, Curve, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, Sushi Swap, Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, mStable, Alchemy, Binance Launchpool (BellaProtocol), BakerySwap, Pickle, PerlinX, Synthetix, Pancake Swap. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle, hardhat ✔ PHP / Laravel / Yii (2) ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ Python, Django ✔ Rust ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing) As a dedicated and full-time freelancer, I can 100% overlap your timezone for better communication and development. Software development is not only my job but also it's my passion so from my skills and experience, I can jump in and give you a sturdy pace to move forward to achieve your certain goals. I am ready to do all my best for you and am looking forward to working with you. Best.
Senior Full Stack Web & Blockchain Developer
Active a year ago - Hi. I am a senior Fullstack Web & Blockchain developer, specialized in custom cryptocurrency and blockchain development, having extensive experience in ICO, POS – Proof of Stake, blockchain website, web portal, & smart contracts application development. I am very proficient with the solidity programming language, Ethereum, token generation(Fungible and Non Fungible Token(NFT) development, digital currency exchange, proof of work (POW), and building innovative, highly customized, robust, feature-packed, and modular blockchain development solutions. As a full-stack blockchain developer & solidity programmer, I have successfully delivered a wide range of custom cryptocurrency and blockchain development projects using the solidity language with eye-catching user-friendly UI design and high-end functionalities. I understand all aspects of developing Blockchain applications: design, architecture, development, and publishing. Plz review my previous worked projects. https://motogp-ignition.com/ https://ezone.gg/ https://www.hippohotel.io/ https://www.pawzees.club/ https://www.zodiacfriends.io/ ✔Skillsets and experienced area - Cryto currency development with Web3, Solidity, Solc, Remix, Infura, Truffle, Ganache, Metamask, hardhat, Parity - Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins - Openzepplin, ERC 20, ERC 223, ERC 721, ERC 809, ERC 1155, ERC 1238 - DEX and Centralized Crypto Exchange & DApp - Audits & Analytics for cryptocurrency - Advanced Trading Platform and API - DeFi Development - Yield Farming & Liquidity Mining Protocols - Automated Market Making (AMM) protocols - Trading bots for cryptocurrency to exchange Bitcoin | Ethereum | TRON | USDT - P2P/Pool Lending and Borrowing - ICO, STO, Blockchain Copyrighting and Whitepapers ✔ API Development and Integration: blockchain.info, inrura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Yearn, Uniswap, Curve, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, Sushi Swap, Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, DDorce, mStable, Alchemy, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pickle, Fortube, PerlinX, UMA Project, YFV, YFII, Synthetix, dForce, Swerve, Zoom Protocol, Pancake Swap. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ PHP / Laravel / Symfony ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ Python, Django ✔ Rust ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing) As a dedicated and full-time freelancer, I can 100% overlap your timezone for better communication and development. Software development is not only my job but also it's my passion so from my skills and experience, I can jump in and give you a sturdy pace to move forward to achieve your certain goals. I am ready to do all my best for you and am looking forward to working with you. Best.
Full Stack Web and Blockchain Developer
Active a year ago Backend Engineer
Active a year agoAvailable now📍ChinaDear client I just read your job posting and I think this is what I can do as I have experiences in Smart contract development with Solidity I have used Solidity to deliver smart contract on ETH by using ERC20, 721, 725 and 1155 protocols such as Tether and NFT. Also by using this, I have delivered I published smart contract and build web-wallet and mobile-wallet for token management. In addition to these, I have done some of cryptocurrence trading platforms by using web3 and scatter libraries. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Web/Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Flash Loans ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Forsage, Linos Share, BestMining like MLM Crowdfunding HYIP Platforms ✔ ICO, STO, Blockchain Copyrighting and Whitepapers ✔ Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins ✔ API Development and Integration: blockchain.info, inrura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ DeFi development: Yearn, Uniswap, Curve, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, Sushi Swap, Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, DDorce, mStable, Alchemy, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pickle, Fortube, PerlinX, UMA Project, YFV, YFII, Synthetix, dForce, Swerve, Zoom Protocol, Pancake Swap. ✔ Blockchain stack : Web3, Solidity, Infura, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, TRON, USDT, YFI, Bel ✔ Wallets and Clients: MEW, Geth, Parity, Gemini Mist, Metamask, Ganache Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing) For example, I have worked on https://pernamint.com/, https://marketcap.com/, https://dutchswap.com which is cryptocurrency exchange platform by using web3 and scatter.js with PHP and python Also I have worked for a company and published smart contract on main net too. You can check one of those from following one. https://bscscan.com/address/0x3dbf25ecc1c94bcb17a3e2e82d0bdf394a810330#readProxyContract https://etherscan.io/token/0xe53940db3ce1ccc33375129b6e211b39221035e4 https://bscscan.com/address/0x12ee26463C5586d8D9132E3A230EA19a6B7Eb742 So I think I am suitable on this position. I can work on client's working hours as good communication is key in remote freelancing. I love to solve problems and also have good attitude and ethics in development. I am ready to start working any time and can put over 40 hours per week so please contact me any time. Kind regardsC.E.O
Active a year ago✔ Web3.js Ethereum Solidity Truffle Hardhat Polygon BSC ✔ JavaScript Typescript Vue.js React.js Node.js ✔ MySQL MongoDB Redis ✔ TDD methodology (Unit-testing)Web and Mobile development services for Blockchain and Crypto startups. Building Custom DApps, Crypto Gambling and Betting platforms, DeFi Ecosystems, Decentralised Trading and Analytic Solutions, Trading Platforms and Exchanges, Crypto Lending/Borrowing Platforms, Clone Swaps, Crypto Wallets. Drop me a line to see my full portfolio! Solutions we provide: ✔ DEX, Centralized Crypto Exchange and Hybrid Exchanges ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Multichain Web and Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ Flash Loans, Trading Bots, Liquidity Bot, Arbitrage Bots, Front run bots ✔ Impermanent loss, governance tokens, synthetic token ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps, Smart contracrs, Tokens ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Forsage, Linos Share, BestMining like MLM Crowdfunding HYIP Platforms ✔ ICO, STO, Blockchain Copyrighting and Whitepapers ✔ Token Design - Stabilcoins, Utility, Security, Investment, Dividend coins, Tokenomics ✔ NFT Marketplace, NFT Staking Platform, NFT Wallets, NFT Minting dapps ✔ API Development and Integration: blockchain.info, infura.io, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, yearn.finance, sushiswap.org ✔ Platfoms: Ethereum, Binance Smart Chain (BSC), Huobi ECO Chain (Heco), Polygon (Matic), Fantom, Egem, Avalanche, TomoChain, any EVM compatible platform. ✔ DeFi development: Yearn, Uniswap, Curve, Olympus DAO, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, SushiSwap, Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, DDorce, mStable, Alchemy, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pickle, Fortube, PerlinX, UMA Project, YFV, YFII, Synthetix, dForce, Swerve, Zoom Protocol, Pancake Swap. ✔ Fast DeFi Clone: forks of apeswap, quickswap, pankcakeswap, sushiswap, moonswap, bakeryswap, apeswap, pantherswap, olympus dao, 1inch and more. ✔ Blockchain stack : Web3, Solidity, Infura, Hardhat, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, TRON, USDT, YFI, Bel, Solana, Polygon (Matic), BSC ✔ Wallets and Clients: MEW, Geth, Parity, Gemini Mist, Metamask, Ganache, Trust Wallet ✔ APIs we work with: KuCoin, Bittrex, Bittrex Global, Coinbase Pro, Binance, Kraken, Poloniex, Huobi, Gemini, Bibox, BitMart, Huobi Global, HitBTC, OKEX, Bitstamp. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle, Hardhat, Polygon, BSC ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ MySQL, MongoDB, Redis ✔ TDD methodology (Unit-testing) Have Turnkey and Whitelabel solutions for your fast start. Can provide dedicated teams for constant product growth. Just drop me a line!Full Stack & Blockchain Developer
Active a year agoAvailable nowAddicted to finding clear solutions with over 10 years of experience in programming with the following skills. Full stack web developer with 10+ years of experience - React.js, Vue.js, Angular - Node.js - Elixir & Phoenix - Relational and Non-Relational Databases administration, especially Redshift, Snowflake, RDS, MySQL, PostgreSQL, MongoDB, DynamoDB, Redis, and RabbitMQ - DevOps * Cron-job enabled Data pipeline infrastructure creation in AWS and GCP * CI/CD implementation leveraging services like AWS CodePipeline, AWS CodeBuild, Amazon SNS, AWS Lambda, AWS CodeCommit, Amazon API Gateway, AWS CloudFormation. and Version Control Software Apps like Bitbucket and Github - Data mining, transforming, loading, warehousing, and visualizing - Data Analytics & ETL pipeline implementation(complex systems preferred) - Data/Web Scraping and handling quite big data using Dask Framework Blockchain developer with 6+ years of experience - Blockchain Skills * Decentralized applications (DEX, DEFI, NFT) that work on Blockchain * NFT minting & NFT staking & NFT breeding & NFT marketplace * Token ICO(Whitelist, Merkletree, Private sale, presale, public sale, vesting) & staking & compounding & farming & liquidity, & DEX & CEX * DeFi & DAO & Smart contract Auditing & Oracle * Blockchain games(Gambling, Auction, Lottery, Casino, FPS, RPG) - API Development & Integration blockchain.info, poloniex.com, bitfinex.com, coinbase.com, kraken.com, cex.io, coinmarketcap.com, cryptokitties.co, uniswap.org, aave.com, opensea.io - Token Development & Protocol ERC20/ERC777/ERC721/ERC721A/ERC1155/ERC1238/ERC1967/BEP20/BEP721/spl-token - Chains Ethereum, Solana, BSC, Polygon, Fantom, Bitgert, Avalanche, Harmony, Elrond - Language Solidity, Rust, C++, Go - Framework Hardhat, Truffle, anchor, Metaplex, CandyMachinev2 - web3 web3.js, Ether.js, solana-web3.js - RPC provider Infura & Alchemy & Moralis What I ensure - Highly readable idiomatic code - Advanced communication skills in English and prompt response to your messages - Fair time tracking Attention to details - High availability and reliability - Experience in collaborating with US-based and distributed teams I prefer challenging and non-standard tasks utilizing cutting-edge technologies. I am a quick learner and also a very honest and trustworthy person. I think mutual respect is a big key to success. I wish a great collaboration with you.