I have been specialized in blockchain development for 5 years and have experience in full stack web development for 8 years.
I love challenges and very sensitive to new techs
I am open to work and summarized my experience/skills below:
- Portfolio: https://davechan.netlify.app/
1) Smart contract development in Ethereum & EVMs like Binance, Polygon, Fantom, Avalanche, Solana.
- Writing / Auditing Smart contract with solidity and unit test / deploy / verify / analyzing with hardhat, truffle, Remix.
- Great expertise about ERC20, ERC721, ERC1155 openzepline libs and standards
- DeFi protocols: staking / vesting / yield farming, liquidity pool, crypto exchange, cross-chain-bridge and DEX router SDKs like uniswap, pancakeswap, spookyswap, sushiswap.
- NFT marketplace, NFT minting / staking on all EVM chains
- Lottery / Raffle /Auction
2) Dapp development in frontend / backend / web3 / API integrations
special langs: React.js, Next.js, Node.js, Express.js, Typescript, web3 / ethers.js, TailwindCSS, ABI / json and DB programming languages like MySQL, Postgresql, subgraph and webpack, Restful API
I am always focusing on development, maintenance, problem-solving and team work collaboration
Deeply knowledgeable in distributed ledger, blockchain security, blockchain architecture patterns, and different blockchain standards and ecosystems. I have been in a part time role of Channel Partner for my region for Crypto Rating company.
I am a passionate Blockchain developer with 8+ years of experience and a strong technical background in developing, designing, and implementing distributed ledger technology solutions.
- Competent in writing and deploying optimized smart contracts using Solidity / Remix.
- Confident in developing robust APIs using NodeJS & creating elegant UIs using ReactJS.
- Efficient in building and deploying web applications.
- Proficient in building decentralized applications (dApps) such as Defi, Dao and NFT on different blockchain networks.
Every day brings something new, different and that surprise is motivating to me.
I'm a Solidity Developer with a passion for building decentralized applications on the Ethereum platform.
I am constantly learning and staying up-to-date with the latest developments in the Ethereum ecosystem and also improving my Solidity and web3 skills.
In my previous projects, I have built a variety of smart contracts, including decentralized exchange, ERC-20 tokens, NFT, auctions, voting systems, and more. I can using tools such as Hardhat, Truffle, and Ganache to develop, test, and deploy smart contracts.
I am excited to bring my skills and enthusiasm to new projects and help bring decentralized solutions to the world.
I am interested in working in a company that operates in the Blockchain / Cryptocurrency sector.
I might start as an intern or Junior Solidity Developer.
- Decentralized Exchange: https://github.com/ionOM/Decentralized-Exchange
- NFT Low Mint Cost: https://github.com/ionOM/NFT-Low-Mint-Cost
"If you think you can do a thing or think you can't do a thing, you're right."
- Henry Ford
My Github: https://github.com/ionOM
I have six years of experience as a Project Manager, two years in IT and four years in Mechanical Engineering. Have got experience of holding a project on the whole lifecycle from contract preparations to deployment. On my last position I successfully accomplished five projects for development of CAD-systems add-ons.
Also, I am an active user of blockchain technologies. I have technical knowledge in blockchain area, have Solidity smart contracts development skills, understand main concepts and standards, know main DeFi protocols and smart contract vulnerabilities. I am constantly improving my skills and enlarge knowledge. I have experience in using Remix IDE, Brownie framework, and also Python scripting using web3.py library. I have experience of interaction as a user and as a developer not with Ethereum network only, but with other EVM-chains like Polygon and BSC.
I have experience of manual testing, Python skills, skills of working with Git, Docker, SQL, basic C# (.NET) skills, basic Machine Learning skills in pet projects. Understand and apply OOP principles, know basic algorithms and data structures, aim to write clean and simple code, understand importance of documentation.
I see my further professional path as a developer and primarily as a developer of decentralized applications. I am very excited of web3 area and I want to apply and increase my skills in that direction.
👨💻Full Stack Web3 Developer |🎓CSE IIITM23 | Tech lead @PolygonGuildLko | alterok at @_buildspace N&W S1 & S3| @developer_dao #1265 | 🏆× 7 Web3 Hackathons
Hey, I am Shikhar. I have been developing EVM-compatible blockchains for around 2 years.I am currently a Polygon Guild Lucknow Tech lead, an active Developer DAO #1265 member & Superteam DAO member. I am also working on scaling and developing my blockchain projects and trying to improve myself every day. I love to build projects and make a change in the world some day. Before getting into blockchain development, I have been a freelance web developer at Upwork, worked on lots of Web2 projects and helped business by developing their websites and web apps.
I have been a buildspace nights & weekends s1 fellow and participated in lots of blockchain hackathons like Polygon BuiltIT 2021, ETHGlobal RoadToWeb3, ETHGlobal Buildquest, ETHGlobal HackMoney, ETHGlobal ETHOnline, Ethernals 2022, MoleHack NFT2.0 by MoleDao etc. Apart from these online hackathons, I have attended in-person hackathons events - Solana Hackerhouse India 2022, Web3Conf India 2022 and ETHIndia2022.
I have won lots of hackathons like Polygon BuiltIT 2021 Best Web2 integration track, ETHGlobal RoadToWeb3 Polygon track, ETHGlobal HackMoney, Ethernals 2022 Filecoin Track, MoleDao NFTHack Brainly Prize etc.
After lose money in crypto games in 2020, I've decided to learn more about the space and use my previous skills (Front/Back end) to get a crypto job.
I've been using the following techs in this industry:
• Sketch/Figma to build UI's
• Blockchain libraries to fetch contract informations like ethers.js, Web3.js
• Tailwind CSS, Sass, common css
• Fetch Oracle APIs
• REST/GraphQL APIs
• Solidity to build smart contracts using Hardhat/Remix environment
• Subgraph to map contracts events / build APIs (GraphQL approach)
• Chainlink integrations
I love to learn everyday and coding became my passion long time ago, so the bigger the challenge, the better. At the moment I'm learning how to use Foundry solidity framework.
In my free time I usually play my guitar and sing some rock songs with friends. I believe that music helps us to innovate, in addition to relieving stress.
Feel free to connect me for sharing ideas, experiences and collaborative thoughts.
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.
Know how to use object-oriented programming languages. Some experience in SwiftUI for developing apps for MacOs.
Currently working on transitioning from Web 2.0 to Web 3.0. great knowledge how blockchain
is working and Smart Contracts, DEFI, DApps, NFT"s. Working experience in Solidity, Remix IDE, Ganache, Hardhat, OpenZeppelin. Good skills in making and deploying Smart Contracts on blockchain.
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)
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
✔ Web3Js, Solidity, Truffle & Hardhat
✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4)
✔ 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.
# Three years of blockchain / Ethereum smart contract development experience (since 2019).
- Solidity: ERC20, ERC721, NFTs, Web3.js, Truffle / Ganache, Remix, MetaMask, etc.
- OpenZeppelin Smart Contract Library, Upgradeable/Pausable Contracts, etc.
- De-Fi protocol integration (eg. Compound Finance).
# Professional background in traditional software application development (10 years) for multiple clients:
- Full-stack software engineering, programming with C++, VC++, SQL, Pro-C, Oracle/Sybase, under Windows and Unix.
- Architecture & object-oriented design. Requirements analysis employing Use Cases, UML, etc.
# Extensive IT business, project management, and people management experience:
- Analytical, problem-solver, and entrepreneurial.
- Track record of taking on new challenges and delivering outstanding results for clients including Specsavers, Meggitt, Harrods, HSS Hire, British Army, and National Grid.
- Highly experienced in both agile and waterfall methodologies. Scrum/DSDM (Atern)/Kanban: Certified Scrum Master. MSP and PRINCE2 Practitioner. Educated teams on Agile development.
- Internal business analysis and process improvement initiatives with the introduction of best practices into teams/departments.
- Certified Blockchain (Application) Developer: 1-year “Blockchain Developer Bootcamp”.
- BSc Hons Computer Science.
- MBA (with electives in Creativity, Innovation & Change, and 'Financial Strategy').
Blockchain | Crypto | Web Developer
Starting from 2014 began proactively working on blockchain related projects as a Blockchain Developer.
My experiences range from creating both front-end blockchain applications to backend architecture design and implementation, smart contract development, testing, auditing, and development for Fintech and other industries that need the power of decentralization, tokenization, and smart contracts.
Expertise in Public Blockchain Platforms:
Ethereum | Solana | Binance Smart Chain
✓ Developing smart contracts by Solidity and Rust programming languages.
✓ Developing RPC using client libraries such as Web3js.
✓ Static analysis of smart contracts for gas consumption and optimization using Remix IDE.
✓ Securing smart contracts using libraries like OpenZeppelin.
✓ Developing Ethereum dApps using Truffle framework.
✓ Integration with crypto wallets such as Metamask & Phantom.
✓ Deploying smart contracts on test networks such as ropsten/rinkeby as well as ethereum/solana mainnet.
Expertise in Private & Consortium Blockchain Platforms
✓ Developing proof of concepts using Hyperledger Composer.
✓ Integration with Fabric Java SDK.
✓ Creating RESTful APIs for client applications to communicate with the blockchain network.
✓ Creating channels, orderers, and peers.
✓ Deployment and instantiation of Chaincode on channels on cloud services like IBM Bluemix and Amazon AWS.
I hold expertise with:
- Solidity / Rust
- React.js / Express.js / Vue.js / Next.js / Angular.js / Redux /Node.js
- MySQL / MongoDB / PostgreSQL / MSSQL
- Heroku / VPS / Amazon Web Services (AWS) / Digital Ocean
- Github, Gitlab, Bitbucket, Trello, Backlog, etc.
Here are the applications that I've built so far.
- Dapp, DeFi development
- NFT game/marketplace development on Ethereum & Solana blockchains in Solidity & Rust
- Ethereum & Binance Smart Chain token development on ERC20, ERC721, ERC1155, BEP20, BEP721 & BEP1155 protocols
- ICO / ITO / IDO / STO, Cryptocurrency exchange & Cryptocurrency wallet Development
Further Expertise & Work Deliverables in Blockchain:
✓ DApp for Supply Chain Management for Food Industry
✓ DApp implementation in Philanthropy
✓ DApp for Anti-Counterfeiting in the Pharmaceutical Industry
✓ Worked on Protocols like Ethereum, IBM Hyperledger, Stellar
✓ SetUp of a Permission-based Consortium Network
✓ Implementation of Private, Public and Permission-based network
If you are looking for a skilled and punctual developer, then hire me. I can assure you that your job will be done perfectly at the right time without making any mistakes. So if you feel interested, have faith in me and give me a chance to make your project successful.
I 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 well
I 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
I am Software Engineer with more than 9 years of unique experience with strong backend and frontend development. As well, I have rich experience for 2 years in developing the Decentralized Blockchain applications using Solana (rust) and Ethereum (solidity).
- Solana: Rust, Solana-token program, Metaplex, anchor, solana-web3.js, NFT, Staking
- Ethereum: Solidity smart contract, Geth, Truffle, Ganache, Remix, Web3.js, Ether.js, Defi, NFT
- Database: MySQL, MongoDB
- Version control: Git, TFS
- DevOps: Docker, Kubernetes, Cloud AWS
- Product testing: Mocha, Chai
- Project management
- Debugging proficiency
I am Highly organized and Able to grasp new concepts quickly. I have Strong listening and communication skills. I am looking for long term relationship in a multinational firm where I can apply and improve my skills.
I'm a Senior Blockchain Developer with around over 5 years of experience. I have worked on DeFi and DApps based on Ethereum Blockchain and I have rich experience in developing and writing Smart Contracts for Ethereum Blockchain.
I have a deep knowledge of blockchain technologies, specifically in constructing the decentralized application, fork & customizing the existing secure smart contracts, implementing trending methods like yield farming, building bridges between networks, etc.
Skills & Expertise
- Blockchain Architecture, DEX, DeFi, DApp
- NFT Mint, NFT Marketplace, OpenSea listing
- Ethereum, Solidity, Solana, Rust, Smart Contract, Web3.js
- ERC20, ERC-223, ERC-667, ERC721, ERC-777, ERC1155
- Remix, Truffle, Hardhat, IPFS, OpenZeppelin, Chainlink
If you think I'm a good fit, then get in touch! I am open to working now.
I worked as a Full Stack Web&Mobile developer for 7 years. In 2017 I entered the Uruguay company. At that time I was fascinated in Blockchain technology and Cryptocurrencies, and then started learning proper Blockchain development skills.
I worked on a few DeFi and NFT marketplace projects and minted various kinds of NFT tokens based on the ERC-721.
Also created ERC-20 tokens and developed Smart Contracts using Solidity and Truffle framework and deployed on Ethereum Mainnet successfully after auditing carefully on Testing network.
While working on decentralized applications, I also got familiar with Web3.js, React.js and MetaMask.
I have a deep understanding about Tokenomics, Lightning Network and Polygon.
I am a full stack software engineer specialized in cryptocurrencies and react development so that I would be right candidate for your project.
My experiences range from creating both front-end blockchain applications to backend architecture design & implementation, smart contract development, testing & auditing, development of dApps for Fintech and other industries that need the power of decentralization, tokenization, and smart contracts including NFT, DEX, DeFi.
With following skills, I can help you.
* Developing smart contracts using a Solidity programming language.
* Developing RPC using client libraries such as Web3, Terra.js.
* Static analysis of smart contracts for gas consumption and optimization using Remix IDE.
* Securing smart contracts using libraries like OpenZeppelin.
* Developing Ethereum dApps using Truffle/Hardhat framework.
* Integration with crypto wallets such as Metamask.
* Deploying smart contracts on test networks such as ropsten/rinkeby as well as Ethereum/BSC, Terra and other mainnets.
Apart from that, I have strong background in development of React.js Single Page Application.
I am proficient in React.js, Redux, Redux Saga, HTML/CSS, SCSS, JSX, jQury, ECMAScript6/7, Typescript, Tailwind, Bootstrap, Material UI, Ant Design, GraphQL, Apollo, MongoDB, NPM, WebPack, Gulp, Grunt, Github, etc.
I am ready to do all my best for you and am looking forward to working with you.
Senior Software Engineer with 10 years of experience who loves "Innovation distinguishes between a leader and a follower." & "Stay hungry, Stay foolish".
Motivated to advance and expand my skill set through targeted mentorship and challenging projects.
Love emerging tech - blockchain engineering.
A savvy-tech developer with a proven ability to develop innovative solutions in the blockchain industry.
I have engaged in several types of projects.
Nowadays, I have built NFT minting, NFT marketplace, P2E NFT Game, Staking, DAO, DEX, Betting and etc.
I have used React, Vue, and Angular for the front-end development and Node.js, Laravel, and Django for the backend development.
For the blockchain development, I have used Solidity for the smart contract development, and Web3.js, Moralis, and Subgraph to integrate with the Smart Contract in the front-end part.
So I am very familiar with the below skills.
- Program Language
- Front End
React / Vue / Angular / NextJS / Redux / Vuex / React Hook / React Native /
Material UI / Ant Design / Tailwind CSS / Bootstrap /
- Back End & DB & Service
Node.js / Express / Laravel / Django /
MySQL / MongoDB / PostgreSQL / Firestore /
GraphQL / Restful API /
AWS / Firebase / Heroku / Vercel /
Git / SVN / Nginx
Ethereum / Binance Smart Chain / Polygon / Avax / Harmony / Solana / Terra /
ERC20 / ERC721 / ERC1155 / ERC721A / BEP20 / BEP721 /
DAO / Defi / NFT / Marketplace / P2E NFT Game / Metaverse / Token /
Smart Contract / Solidity / Rust /
Hardhat / Truffle / Remix /
Web3.js / Ether.js / Solana-Web3 / UseDapp /
Moralis / Subgraph /
IPFS / Pinata
My name is Kevin. I am a Freelance Frontend Developer from Germany, looking to get into Web 3.0 / Blockchain development.
Your offered job looks really promising, so I feel free to send you my CV, perhabs we can get in touch.
About me: Meanwhile I work for more than 8 years in IT. During my master's program of computer science I founded a successful internet startup and later decided to go on a freelance journey. My work is agile and remote by nature. I offer web & mobile app development using modern frameworks including web 3.
I have very strong experience with Vue, but also React & Svelte. Since a few months I heavily invest time into learning about Web 3, Blockchains, Smart Contracts etc. focussing on Ethereum, Solidity, using the Remix IDE, writing tests with Truffle, checking out OpenZeppelin and so on.
I have worked with multiple teams and different MERN stack Projects. I have experience in making custom hooks and Implementing Responsive Design. also have hands-on experience working with AWS.
This year January I Joined BlockC School. where I worked on Solidity Smart Contract Development with Remix IDE. Integrated testing and development with tools like HardHat and Truffle. worked on Integration of Smart contracts with Frontend(React) via EthersJs. Worked on Dao’s, Defi, and Contract Security.
Looking for a opportunities with small or medium size team where I can contribute and make an impact.
To become an IT Professional with a company where I can utilize my skills and gain further experience while enhancing the company`s productivity and reputation. In the long run, I`m confident about leading a programming team.
I have over 2 years of experience in Blockchain development. Developed sites from scratch with Blockchain technology. Looking for long-term opportunities to build websites from the ground up with Blockchain technology.
> Manage server (AWS and Google cloud)
> Project management tools: Jira, Redmine, Trello.
> Using tools: Docker, Git, SVN
Hello, I am a fully experienced Web and Blockchain engineer for 6 years of developing periods. Have many specs in Web and Blockchain world as a Senior Software Engineer with the following skills and experience, look forward to land on the high-tech and high-vision company.
Fully experienced in the following Tech Areas:
- Skillful in developing smart contracts for NFT/DeFi/Gaming with Solidity and ICP
- Enough experienced in developing Frontend with React.js/Web3.js/Ethers.js
- Proficient in developing backend with Node.js and Go
- Expertise in Truffle/Hardhat and Remix
- Enough worked in MySQL/PostgreSQL/MongoDB/AWS DynamoDB/FireBase
Now I am very keen to get any blockchain job opportunity as a Smart Contract/Frontend/FullStack engineer.
Full Stack Blockchain Engineer
As a senior Blockchain(8 years) & Web/Mobile(3 years) developer with over years of experience, I am specialized in custom cryptocurrency and blockchain development.
--- Blockchain Development
✔ DEX and Centralized Crypto Exchange
✔ Advanced Trading Platform (Stocks / Forex / Option / Futures)
✔ Smart Contract Development(ERC[BEP]20/777/721 /1155 )
✔ DeFi development(Pancake Swap / Uniswap / Curve / Compound / Mooniswap / Sushi Swap / Polkadot)
✔ NFT Minting/Staking/Marketplace/Metaverse
✔ Blockchain stack (Web3 / Ethers / Solidity / Rust / Truffle / OpenZeppelin / Remix)
--- Web and mobile Development
✔ Python (Django / Flask), C/C++, Java / Spring Boot
✔ Automation, Web & Data Scraping, Web & Google Search, Data Mining , Data Processing
✔ MySQL, MongoDB, PostgreSQL
✔ Git, AWS, 3rd Party API Integrations , Linux
✔ Objective-C, React Native
I'm looking forward to helping your crypto business grow!
Thank you for your listening!
I've been exploring & learning blockchain technology since 2021, I have learned very most basics of blockchain watching dapps university videos like understanding of blockchain smart contracts using Remix, Smart contracts for Minting Nft's