justindann

• Led a cross-functional team in the creation of the Web3 game website on SEI Blockchain using React, Tailwind CSS, Material-UI and Web3.js, resulting 70K+ wallets, 200K+ gameplays, 60K+ quests completed, 100K+ Twitter followers. • Implemented a comprehensive testing suite and CI/CD pipelines using Storybook, Jest, Cypress, GitHub Actions, and Vercel, resulting in a 90% code coverage, reducing bug rates by 60% pre-deployment, and increasing deployment frequency by 200%. • Collaborated with UX/UI designers to turn complex designs into a responsive web interface, ensuring seamless cross-device functionality and maintaining over 95% user experience consistency across key browsers.

• Designed and developed a high-performance NFT analytics platform using React, Next.js and Redux, focusing on server-side rendering and SEO best practices, which improved rendering efficiency by 40% and reduced server response times by 30%. • Engineered and deployed interactive data visualization components using D3.js, Snap.svg, and Lodash, improving user engagement by 50% and providing clear insights into complex NFT transactions and trends. • Utilized Emotion CSS for styling, reducing load times by 20%, and adopted Material-UI, improving UI consistency by 50%. • Enhanced data retrieval efficiency by 25% through strategic integration of RESTful and GraphQL APIs. • Streamlined build processes using Webpack and Babel, reducing build times by 50% and improving code quality.

• Designed and developed an e-commerce platform with TypeScript, Angular, NgRx, RxJs and Bootstrap, handling over 100K monthly active users, streamlining complex workflows, and processing transactions exceeding $5M per month. • Collaborated with backend teams to optimize API endpoints, achieving a 20% reduction in frontend loading times, thereby significantly improving the overall user experience and contributing to a lower bounce rate on the site. • Coordinated the deployment across AWS, Azure and GCP, ensuring 99.9% uptime and a 40% reduction in operational costs.

• Contributed to the development of a real-time chat app using Vue.js, WebSocket and Firebase, which dramatically improved user interaction and satisfaction for our online platform, leading to a notable increase in daily active users. • Developed and maintained websites primarily using HTML, CSS, SASS, JavaScript, and jQuery adhering to coding standards. • Utilized Git and Agile methodologies to manage a repository with 1,000+ commits per week, maintaining a 97% success rate on builds and updates, and conducted thorough code reviews to ensure high-quality standards and bug-free releases.