Zilin Jin

Built secure, high-performance applications in a fast-paced startup environment, leveraging the T3 stack, microservices architecture, and seamless CI/CD practices.

• Collaborated with top-tier engineers in a high-velocity startup setting, driving rapid feature development and innovation.
• Built high-quality front-end solutions with the T3 Stack, React-Query, and Zod, ensuring responsive, robust, and type-safe applications.
• Engineered dynamic web applications using Next.js, facilitating seamless serverless functions and improving the performance of back-end operations.
• Developed and deployed scalable microservices using NestJS, Docker, and Kubernetes, supporting rapid scaling and high availability.
• Implemented monorepo strategy, improving codebase consistency, reusability, and development efficiency.
• Streamlined CI/CD pipelines through Github Actions, achieving automated, reliable, and faster deployments.
• Ensured 100% type-safe code with TypeScript, preventing runtime errors and enhancing code reliability.
• Secured API responses to prevent sensitive data exposure, achieving 100% compliance with data protection best practices.
• Optimized app performance with dynamic loading and tree-shaking, reducing initial bundle size and improving load times by 30%.

Led full-stack initiatives to develop scalable microservices and high-performance front-end solutions.

• Mentored and guided junior developers, elevating code quality and efficiency across the team, and reducing defect rates by performing code reviews.
• Architected scalable microservices with NestJS and TypeScript, leveraging dependency injection to boost efficiency and reduce development costs by up to 30%.
• Optimized data flow and latency by implementing caching with Redis and messaging systems with RabbitMQ and Apache Kafka, achieving a 25% reduction in average response times.
• Integrated Elastic Search for efficient data retrieval, enhancing search functionality and reducing query times by 50%.
• Conducted thorough performance testing that identified critical bottlenecks using test tools like JMeter.
• Monitored product health in real-time using Sentry and Datadog, reducing incident detection time by 60% and enabling rapid troubleshooting.
• Used Docker for containerization, enabling consistent deployment environments and reducing setup time by 70%.
• Built responsive, optimized UIs with React.js, customized Webpack, Babel, and Vite for code-splitting and transpilation, leading to a 35% decrease in page load times.
• Automated unit and end-to-end tests within CI/CD pipelines using Jest, Cypress, and Playwright, increasing deployment frequency by 50% with consistent quality.

Engineered high-performance, scalable backend solutions for 15+ client projects, optimizing databases, enhancing security, and ensuring zero downtime.

• Engineered backend architectures using Laravel(PHP) and MEAN stack, ensuring robust performance and client satisfaction across 15+ projects.
• Optimized database queries in PostgreSQL, MySQL, and MongoDB, boosting data processing speed by up to 30%.
• Executed thorough unit testing to maintain high code quality and reliability, reducing bugs in production.
• Identified and resolved performance bottlenecks swiftly, improving application response times.
• Delivered hotfixes on live systems with minimal downtime, maintaining stability and functionality.
• Designed flexible database schemas for complex applications, supporting scalability and data integrity.
• Implemented security best practices on backend infrastructure, reducing vulnerability exposure.