Kevin Tan

Led development of a full-stack financial platform using React, TypeScript, and Node.js APIs, supporting real-time transaction workflows and complex approval systems across high-volume financial data. Implemented secure backend services (REST/GraphQL) with authentication using JWT and RBAC for multi-tenant access. Built and optimized CI/CD pipelines with GitHub Actions and Docker, reducing release friction. Implemented PostgreSQL-backed services for transaction processing and reporting with optimized queries. Collaborated with product, QA, and design to deliver production-ready features. Improved frontend performance through modular architecture and testing.

Led frontend development of Ramp’s corporate card dashboard using React and Redux, refactoring legacy components, improving performance, and enhancing user flows for transaction management, expense tracking, and card settings modules. Integrated GraphQL and WebSockets to implement real-time updates for account balances, transaction history, and approval notifications. Built and maintained CI/CD pipelines using GitHub Actions and Docker, automating testing, build, and deployment workflows for staging and production environments. Implemented unit and end-to-end testing with Jest, React Testing Library, and Cypress, covering critical workflows like expense approvals, bulk payments, and reporting exports. Standardized UI with Styled Components, created reusable design tokens and component libraries, and optimized webpack bundle splitting, which reduced load times and improved responsiveness for complex dashboards with large datasets. Developed reusable UI components and modular systems,

Built AI-driven applications using React, TypeScript, Node.js, and Python (FastAPI); developed end-to-end systems enabling LLM-powered features in real time. Implemented secure APIs with request validation, authentication, and rate limiting. Designed event-driven architectures and integrated cloud services (AWS, Terraform) for scalable, asynchronous processing. Created real-time data visualizations with WebSockets and dashboards. Automated deployments with Terraform, Jenkins, and AWS; built reusable frontend components with Tailwind CSS.