Rex Parmar

Software Engineer Intern at Cognizant

Developed and maintained enterprise web application supporting large-scale data migration and workflows using Python and JavaScript (React) with a 95% success rate. Built backend services and REST APIs using AWS API Gateway and AWS Lambda to process, validate, and transform structured datasets, ensuring data accuracy and integrity through AWS DynamoDB and AWS S3. Designed responsive React-based UI for monitoring job execution, progress tracking, and report generation. Implemented cloud infrastructure components to support high-throughput, fault-tolerant processing using AWS CloudWatch and AWS SQS.