Pavan Kumar Reddy Kalla

About Pavan Kumar Reddy Kalla

Senior AEP/AJO Technical Consultant with 6 years of experience designing and implementing…

Experience

1. Software Developer

   American Express

   Jan 2024 — Present · Roswell, GA

   Built a responsive customer portal in React, implementing dynamic route guards and protected views, consuming RESTful APIs for patient records and appointment management.•Developed modular React.js interfaces with component-based architecture, Redux for state management, and optimized data fetching using React Query for efficient UI rendering.•Designed and implemented Node.js APIs with Express, leveraging Sequelize ORM to interact with AWS RDS MySQL, including transactional support for multi-step data updates.•Created automated CI/CD pipelines using GitHub Actions to build Docker images, execute multi-stage testing, push to AWS ECR, and deploy using ECS rolling updates.•Utilized Node streams to efficiently process large CSV file uploads, parsing and batch-inserting data to prevent memory overload.•Configured AWS API Gateway to securely expose Lambda functions for health checks and scheduled reportaggregation tasks.•Integrated secure JWT authentication with refresh tokens across Node APIs, connected to a centralized identity management service.•Implemented observability by instrumenting APIs and frontend with Prometheus-compatible metrics, visualizing application health in Grafana dashboards.