infiniteaengus

Senior Web3 Developer

 Senior Web3 Frontend Developer with 8 years of experience in designing, developing and deploying innovative web applications. Adept at collaborating with crossfunctional teams to deliver high-quality software solutions that meet business requirements. Passionate about leveraging  cuttingedge technologies to create userfriendly, scalable, and secure web applications. 


Experience: 5 years

Yearly salary: $100,000

Hourly rate: $60

Nationality: 🇯🇵 Japan

Residency: 🇺🇸 United States


Experience

Lead Frontend / Web3 Developer
NFTy Meta
2022 - 2023
- Translated Figma designs into a fully functional marketplace frontend using React 18,harnessing the latest features and optimizations offered by the React framework. - Integrated web3 functionality seamlessly into the marketplace using ether.js and wagmi. - Leveraged wagmi hooks to facilitate easy interactions with wallets, contracts, and transactions, ensuring a user-friendly and efficient decentralized experience. - Established a robust CI/CD pipeline using Docker for containerization, CircleCI for continuous integration, and AWS S3 with Cloudfront for efficient content delivery. - Configured CircleCI YAML for streamlined deployment of web applications into multiple domains, accommodating various whitelabels and environment values. Developed an admin dashboard using Next.js, providing a performant and responsive user interface for administrators. - Integrated Grapesjs to implement a web builder feature, empowering marketplace admins to easily customize the style and layout of their platforms without extensive coding knowledge. - Improved frontend performance through the strategic use of react-window for efficient rendering of large lists. - Implemented infinite scroll and lazy loading techniques to dynamically load content, ensuring a smooth user experience. - Optimized DOM structure, limiting it to 30-50 elements in the browser even when navigating over 1 million NFTs, significantly enhancing overall frontend responsiveness. - Developed unit tests and component snapshot tests using JEST and Enzyme
Lead Full-Stack Engineer
HODL Devs
2021 - 2024
- Developed Superchief NFT marketplace - implemented web development, smart contracts, and Web3 integration using Next.js, Typescript, Solidity, Ethers.js, C#, Nethereum, AWS RDS, AWS EC2, and AWS S3. • Leveraged Next.js and Typescript for the frontend to intricately handle dynamic user inputs and provide artists with a sophisticated interface for uploading rich metadata • Implemented a real-time bidding system using Solidity smart contracts for on-chain execution • Implemented a secure authentication and authorization system using C# on the backend, ensuring that only invited artists had the privilege to mint NFTs. Nethereum, a .NET library for interacting with Ethereum, was employed to secure and manage user authentication. • Utilized AWS RDS for relational database management and AWS EC2 for scalable computing capacity. • Integrated Imgix with AWS S3 for image optimization and compression Developed SUI Coin flip Game with Typescript, React, Node.js, Move and AWS • Overcame gas costs with the implementation of the Shinami Gas Station API for gasless transactions, enhancing accessibility for all users. • Utilized a load balancer to efficiently distribute incoming user requests, ensuring optimal performance during peak traffic. • Developed smart contracts using Move language designed for the Libra Blockchain (now Diem), ensuring transparency and provable fairness in the game logic on-chain. • Implemented web development and UI/UX design using Next.js, Typescript, and Figma to deliver a seamless and engaging user experience.
Senior Full-Stack Engineer
HockeyShare
2019 - 2022
- Successfully migrated the main website management project from Laravel 6 (PHP 7.2) to Laravel 9 (PHP 8.1), ensuring compatibility with the latest PHP version. - Updated all necessary modules to align with PHP 8.1 standards and incorporated new features like enhanced routing, validating the functionality of all features. Developed a robust video processing microservice using Node.js, leveraging the latest framework capabilities. - Implemented image scraping from a diagrammer website utilizing Puppeteer and PhantomJS for efficient data extraction. - Produced videos from images using the powerful FFmpeg open-source library, enhancing the platform's multimedia capabilities. - Migrated an existing AngularJS diagrammer project to React 18, leveraging the latest advancements in the React ecosystem. - Implemented smooth touch gesture detection using Hammer.js, enhancing the user experience with responsive and intuitive interactions. - Improved search performance significantly, achieving response times as low as 50ms. - Added documents, established indexes, and fine-tuned relevancy settings, ensuring an optimized search experience. - Configured primary keys to necessary fields, enhancing data retrieval efficiency using MeiliSearch. - Enhanced the speed of web applications by implementing phpFastCache, alleviating database load and reducing latency. - Leveraged caching mechanisms to store frequently accessed data, minimizing the need for repetitive database queries and improving overall system performance
Lead Frontend Develoer
Warashibe, Inc
2018 - 2019
- Developed the Sky Contract Platform (Atlas) using React, Java Spring Boot, MySQL, and implemented JWT user authentication/authorization to establish a secure contract management system. - Converted critical features from a legacy loan origination system built with ASP.NET Web Forms to a new web application powered by React, Redux, Typescript, and ASP.NET Core. - Crafted and optimized RESTful APIs using Node.js, Express, Spring Boot, and ASP.NET Core, resulting in a remarkable 75% improvement in response times, enhancing overall system performance and user experience. - Developed an email communication strategy, utilizing SendGrid to streamline and optimize our message delivery, ensuring efficient and reliable communication with stakeholders
React | React Native Developer
NRI FT India
2015 - 2018
- Designed and implemented user-friendly, responsive web pages using React Native to facilitate seamless client onboarding, access to personalized financial planning resources, and real-time communication with financial experts, accommodating 500+ users effectively - Crafted and optimized React v15.0 pages for Jeep car manufacturing robots, integrating with Azure and SQL, improving overall performance by 15%. - Expertly executed the migration of the project from JavaScript to TypeScript, upgrading from MUI v4 to MUI v5, and transitioning from react-relay to Apollo for GraphQL. - Building BRIDGEs to use the GroundSDK (developed with Swift) in React Native, which enabled seamless integration and improved overall performance. - Robot Operational Control: an Electron desktop application that communicates with autonomous vehicles. The application manages vehicle’s connection and status as well as route planning, and controls the vehicle to carry out the desired jobs. - Utilized Apollo GraphQL pub-sub system for the application to receive vehicle telemetry messages at a frequency of 0.5 second, and publish/subscribe events between vehicle and backend services. - Optimized Openlayers map rendering performance by reducing memory usage with React hooks, which decreased map re-rendering time from 140ms to 20ms and enabled the application to connect from only 5 vehicles to up to 50 vehicles simultaneously.

Skills

front-end
nextjs
react
react-native
solana
solidity
english
japanese