Haoran Qi

Cutting-edge Blockchain Engineer develops novel technologies to expand cryptographic applications. Incorporates security and processing considerations into engineering planning. Tireless integrator of redundant safeguards to protect against catastrophic failures and security breaches.

Decentralized Transaction System

Github: https://github.com/luobaiYoRHa/ETH_transaction_system

• Developed a responsive React frontend utilizing TypeScript and Tailwind CSS to provide a seamless user experience for connecting MetaMask wallet, sending transactions, and viewing transaction history.
• Implemented a Solidity smart contract deployed on the Ethereum blockchain to securely record and retrieve transaction data, ensuring transparency and immutability.
• Optimized application performance through effective state management using React Context API, ensuring efficient and scalable handling of asynchronous blockchain transactions.

Decentralized Voting App

Github: https://github.com/luobaiYoRHa/VoteSystem

• Developed robust smart contracts in Solidity to manage voting operations, including vote casting, delegation, and result tallying, deployed them on the Sepolia testnet using Infura, and tested the smart contracts with Hardhat.
• Introduced a delegation mechanism allowing users to transfer voting rights, enhancing accessibility and participation rates by enabling proxy voting.
• Utilized Vue.js and Web3.js to create a responsive and intuitive user interface, facilitating seamless interaction with the blockchain for non-technical users via MetaMask integration.

Twitter’s Voice

Github: https://github.com/luobaiYoRHa/twitterAPI

• Developed an application using React Native that integrates with the Twitter API to fetch user tweets and generate a summary of the tweets that the users follow. Users can edit the summary and convert it into audio, providing a unique multimedia experience.
• Leveraged OpenAI API and custom services to transform tweet text into audio broadcasts, offering a novel way to consume Twitter content.
• Utilized React Navigation for smooth interface navigation and implemented audio playback using react-native-sound. The application supports secure and efficient audio file storage using Uploadcare and Pinata, ensuring reliability and ease of access.