John McLaughlin
Verified Expert in Engineering
Blockchain Developer
John拥有开发以太坊去中心化应用(dApps)的专业经验。, including an NFT factory and marketplace deployed on Mainnet and L2 chains such as Polygon, Arbitrum, Optimism, and zkSync. He has created two video/audio storage apps using IPFS/Filecoin and designed and deployed a Hyperledger Fabric permissioned blockchain to organize McKurz Capital's financials. John has also designed container orchestrations using Docker and Kubernetes for various web2 and web3 apps.
Portfolio
Experience
Availability
Preferred Environment
React, Next.js, Solidity, Web3, Ethers.. js、Truffle、Hardhat、Markdown、IPFS、Docker、以太坊虚拟机(EVM)
The most amazing...
...application I've developed is an NFT factory/marketplace for the April 2022 ETHGlobal DAOHacks hackathon, which won prizes.
Work Experience
Web3 Back-end Developer
Polemarch LLC
- Developed an Ethereum NFT marketplace for listing Bitcoin ordinal inscriptions with full function to create, mint, 并列出代表比特币序号的EVM nft, BRC-20 tokens, and name inscriptions.
- Contributed to the smart contract Solidity smart contract behind the NFT marketplace featured createNFT, listNFT, cancelListing, addToCart, burn, and other relevant functions.
- Worked on the contract design that utilized OpenZeppelin audited contract library to ensure safety and security.
- Designed and developed a REST API for storing Bitcoin inscription off-chain data such as collection value, curation, 以ETH/USD为单位的上市nft实时定价, etc. API使用MongoDB进行存储.
Blockchain Developer
Levi Sirmons
- Developed an Ethereum wallet that removed and added specific functionalities to the basic Metamask web3 wallet.
- Added permissions to the web3 wallet where it can be used by team members who do not possess administrative rights and permissions to the firm's treasury wallet(s).
- 创建了一个web3钱包浏览器扩展分发，可以上传到Chrome, Firefox, or Brave.
- Assisted in designing a team workflow that allows for close supervision of trading strategies by platform administrators.
Blockchain Developer
Currentz Corp.
- 在Currentz担任首席区块链开发人员. Designed, developed, and deployed ER-C721 and ERC-1155 Solidity smart contracts for the Ethereum and EVM-compatible blockchains.
- Created a defined process for the team to set up NFT drops with a user interface for customers to mint and claim NFTs from their creative economy platform.
- Integrated not only Web 3.0 payments using cryptocurrencies through a Metamask wallet but also purchasing the NFTs using a credit card where customer knowledge of Web 3.0 is not necessary.
- Deployed contracts on Layer 2 chains such as Polygon or Optimism to allow the platform and its customers to save transaction "gas fees" when using cryptocurrencies.
Senior Blockchain Developer
John Nesgoda - Web3 Startup
- 开发了具有代币经济学功能的以太坊Solidity智能合约.
- 实现多签名钱包功能作为保管方法.
- 为多签名钱包编排增加了支付流功能.
- Designed and deployed a platform membership NFT token with an expiration date and the functionality to extend the expiration date.
Lead Blockchain Developer
McKurz Capital Incorporated
- 创立McKurz，作为Web3应用程序的兼职开发商店, 将我们的应用程序提交给11个ETHGlobal和两个Chainlink黑客马拉松. Several of these apps won prizes in hackathon competitions and the interest of venture capital firms.
- Built Ethereum smart contract web apps using development tools such as Truffle and Hardhat, with React and Next.js as front ends.
- Deployed an NFT factory/marketplace to the Polygon blockchain during the ETHGlobal DAOHacks hackathon.
- Developed a few storage apps deployed to the Filecoin blockchain that were submitted to hackathons last year, 包括20世纪60年代至90年代迪斯科的迪斯科摇滚回购, rock, 流行音乐和Fin File Crypto的加密投资视频和文件.
Adjunct Lecturer
CUNY-College of Staten Island
- Instructed on personal finance, using accounting software such as MS Excel and QuickBooks.
- Led students on financial topics through a technology lens to better equip them for the 21st-century digital economy.
- 讲授区块链的历史, industry trends, 以及对比特币等各种项目的投资分析, Ethereum, Solana, decentralized finance protocols, and NFTs.
Teacher
纽约市教育局
- 教授数学主题，如基本代数, 中级代数和三角学, and logic and pre-calculus.
- Instructed entrepreneurship students about website development using HTML, CSS, and JavaScript.
- 扩展学生的知识，将JavaScript开发扩展到Node.js, React, and Next.Js，以及关于基于服务器的开发的其他主题.
- 向学生介绍区块链的历史和用例, 以太坊智能合约理论, 以及基于加密货币的应用的潜力.
Experience
Nature NFTs Marketplace
http://nature-nfts-marketplace-polygon.vercel.app/Legal Documents Marketplace
http://legaldoc.surge.sh/Decentralized Token Exchange
http://mckurz-dex.vercel.app/安全港金融奖励币押注应用程序部署到zkSync
http://safeharbour-finance.vercel.app/Education
教育管理硕士学位
City University of New York (CUNY) - Hunter College - New York City, New York, United States
数学教育硕士学位
City University of New York (CUNY)-Brooklyn College - New York City, New York, United States
会计、工商管理和英语专业本科以上学历
St. 约翰大学-纽约市，纽约，美国
Certifications
AWS合作伙伴:认证(技术)
亚马逊网络服务培训和认证
ConsenSys认证以太坊开发者|课程.consensys.net/certificates/nywvhuwfkt
ConsenSys Academy
超级账本区块链技术|课程.edx.org/certificates/900e628fce4743c8b17b73c4372bc562
The Linux Foundation | via edX
Python超级课程:构建十个真实世界的应用程序.我/ uc - 5 - d483724 - 79 d7 - 481 b - ab4e c7738cfa9750 /
Udemy
Modern React with Redux | ude.my/UC-CGW77936
Udemy
Codecademy强化课程:从头开始构建前端Web应用程序|凭证.net/6acs57hh
Codecademy
Docker精通:来自Docker船长的完整工具集.my/UC-S8K3EJQD
Udemy
Skills
Libraries/APIs
React, Node.js, Web3.js, Twilio API, OpenZeppelin, React Redux
Tools
Microsoft Excel, MetaMask, Excel 2010, Git, GitHub, Docker Compose, Docker Swarm, Docker Hub, MATLAB, Excel 2013
Frameworks
Next.js, Truffle, Hardhat, Flask, Redux
Languages
Solidity, JavaScript, HTML, CSS, HTML5, Python, TypeScript, Python 3, Python 2, Markdown, Rust
Paradigms
DevOps，微服务架构，分布式计算
Platforms
Docker, Linux, Ethereum, Hyperledger, Windows, Blockchain, Blockchain Platforms, DigitalOcean, Hyperledger Fabric, Amazon Web Services (AWS), Netlify, Twilio, Azure, Vercel, Kubernetes, AWS Cloud Computing Services
Storage
数据库，PostgreSQL, MySQL, Docker Cloud, Redis
Industry Expertise
Cybersecurity
Other
Web3, Ethers.. js，分布式团队管理，指导 & Coaching, Time Management, Infura, Non-fungible Tokens (NFT), Decentralized Finance (DeFi), Ethereum Smart Contracts, Ethereum Test Network, Google Drive, Technical Writing, Smart Contracts, Blockchain & Cryptocurrency, Decentralized Exchanges (DEXs), Full-stack, ERC-20, Multisig, Blockchain Design, 分散自治组织(DAO), OpenSea, Bitcoin, CTO, Electronic Payments, Fraud Prevention, Cryptocurrency Wallets, Payment APIs, Fintech, Branding, Cryptocurrency, Decentralized Systems, Web 3.0, Fintech Consultant, Foundry, Polygon, Cloud, Crypto, Security, IT Security, Advisory, Strategy, Back-end Development, Web Development, Troubleshooting, Data Queries, Writing & Editing, Pulse Width Modulation (PWM), Ethereum Virtual Machine (EVM), Tokenomics, Software Architecture, Technical Leadership, Leadership, DApps, Cryptography, Computer Science, White Papers, Solana, Project Consultancy, Arbitrage, IPFS, CSS5, Arbitrum, zkSync, Govtech, Mobile Advertising, Blockchain as a Service, APIs, GPU Computing, Filecoin, Intuit QuickBooks, K-12 Education, Business, Mathematical Finance, Personal Finance, Excel 365, AWS Partner Network (APN)
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