James Brown

About

Having 15 years of experience in full-stack development, James Brown is a blockchain developer with hands-on experience building NFT marketplaces and decentralized applications. He has worked on ETH, BSC, Solana, and Polkadot and is strong at Solidity, Python, Rust, and Golang for the backend and React, Web3.js, and TypeScript for the frontend development. James also has experience in blockchain architecture such as L2 solutions, Cross-Chain, and Substrate, and has a deep understanding of Bitcoin, Ethereum, and Hyperledger blockchain technologies.

Employment

3 roles

Jan 2021 - Present 5 years 4 months

Blockchain Developer (Solidity and DeFi)

Independent

Built and improved blockchain and Ethereum applications.
Developed some Parachain using Substrate on Polkadot.
Built many NFT tokens based on ERC20, ERC721, ERC777, and SPL.
Developed Smart Contracts and DeFi apps in Ethereum, Binance Smart Chain, and Solana.
Used Web3.js to integrate several Smart contracts into frontend designs.
Worked with Uniswap, Sushiswap, Swapping tokens, Staking, Yield Farming, Lottery Smart Contracts, etc.
Built a Web application to maintain the administrative, financial, and clinical aspects of the company.
Developed all web applications from scratch using .Net Core, MVC, and CSS Framework.
Built over 30 client web pages using JavaScript, Angular, Vue, and React.
Developed more than multiple servers using Node.

Nov 2021 - Sep 2022 10 months

Web3 Developer

Solstarter

Built IDO, staking contracts using Solidity and Rust.
Used Figma to work with frontend.
Integrated Web3.js and Ethers.js for blockchain integration.
Worked with REST and GraphQL API integration.
Worked with UI/UX performance optimization.

Jan 2020 - Dec 2020 11 months

Blockchain Developer/Architect

PeopleBrowsr

Developed Smart Contracts and audits using Solidity, Python, Rust, and Golang.
Designed and built end-to-end DApps using React, Vue, and Web3.js.
Used Truffle and Anchor framework for Smart Contracts using Solidity and Rust.
Helped to build and improve blockchain and Ethereum applications.
Experienced in Architecture and coding of Enterprise-grade Blockchain Applications.
Worked with permissioned blockchain, R3 Corda and Kotin smart contracts.
Handled Smart contract integration on DApp.
Secured smart contracts using OpenZeppelin library.
Built NFT social media platform.
Developed Token Presale, Crowdfund contract.Net Developer.