kerberos0727

● Designed, developed, and deployed multiple high-performance smart contracts on the Etherem, BSC, Polygon, Harmony, Avalanche, Solana blockchain using Solidity/Hardhat/ Remix and Rust/Anchor. ● Reduced costs by 40% using an solidity smart contract to automate supply chain management processes. ● Implemented various DeFi protocols on Ethereum using Solidity and migrated functionalities to the Solana blockchain with Rust. ● Implemented interactive and responsive charts and graph components using D3.js and Chart.js to visualize complex data and provide insights. ● Collaborated closely with UX/UI designers to create an engaging and seamless user experience, resulting in positive feedback and high user satisfaction ratings for the crypto wallet application. ● Wrote "off-chain" services to collect and send transactions within the TON blockchain using Node.js, TypeScript, and Highload Wallet. ● Implemented Websocket API to ensure real-time data transmission between systems and handled various APIs to fetch real-time coin data from Etherscan, Infura, CoinMarketCap, etc, and set RESTful API to store data to AWS RDS and DynamoDB. ● Mentoring 3+ developers into full-stack pros.

● Connected the application to the Metamask using web3.js to enable sign-in and make a transaction in the application. ● Developed the gateway to be connected to the Blockchain network using Contract ABIs and Web3.js. ● Identified and enhanced code inefficiencies that led to a 33% increase in app stability within one month on the job. ● Enhanced a customer's website content ranking algorithm and front-end features, which increased user base and retention by 79%. ● Enhanced test coverage by over 98% using industry-standard tools such as Jest and Cypress Enzyme, while closely collaborating with the QA team to improve platform efficiency based on end-user feedback. ● Utilized NoSQL databases for efficient data storage and retrieval in decentralized applications.

● Improved the UI/UX of 20+ client websites and mobile apps with reusable and scalable frontends using React/Vue/WP and Swift/Objective-C/React-Native/Xamarin, etc. ● Improved user interfaces by updating menus to be more intuitive, attracting 5% more clients than the previous quarter. ● Managed state using React Hook, Redux Toolkit, and Redux-Saga, ensuring optimal performance and scalability of the application. ● Adapted various UI libraries and frameworks such as Chara UI, Material UI, Bootstrap, Tailwind CSS, and SCSS, to create responsive and attractive web pages, increasing productivity and reducing development time. ● Optimized the frontend pages and SEO, using various tools and techniques, such as Google Analytics, Lighthouse, Webpack, etc., ranking higher on search engines. ● Developed enterprise SaaS applications, focusing on scalability, security, and maintainability.