Sravanisree Mangala

About Sravanisree Mangala

I’m a Backend AI Engineer with 5+ years of experience building scalable systems and…

Experience

1. Java Developer

   EXL

   Sep 2024 — Present · AZ, US

   Designed scalable microservices using Spring Boot, integrating with AWS DynamoDB, and building features such as alert management, notification delivery tracking using Graph QL APIs and AWS Lambda.• Enabled real-time mobile engagement, increasing user activity by 25%, implementing push notifications feature with AWS Lambda and SQS to deliver real-time updates.• Developed backend functionality in Java to support update operations by querying AWS DynamoDB using Local Secondary Indexes and Global Secondary Indexes with dynamic key conditions and filter expressions.• Reduced database load by 40% by implementing a fine-grained Redis cache eviction strategy to clear cached entries based on custom keys and device types.• Accomplished a 60% reduction in DynamoDB read latency, by optimizing alert count queries using index-based access and multithreaded chunking with Futures.• Used Postman to execute and test Graph QL queries and mutations, validating API functionality, and integration with backend services during development and debugging phases.• Introduced pagination for alert fetch APIs, optimizing payload size and improving client rendering times.• Monitored and analyzed application logs in AWS CloudWatch across development and QA environments to identify bugs and trace issues, facilitating quicker root cause analysis and resolution.• Designed and executed end-to-end integration tests using Cucumber framework to validate feature flows across alerts, mutations, and push notifications.• Utilized Azure DevOps for source control, CI/CD pipeline automation, and managing pull requests.

Education

• The University of Texas at Arlington

  Master's degree, Computer and Information Sciences, General