Harshitha Ayenugula

About Harshitha Ayenugula

As a Full Stack Software Engineer with 4+ years of hands-on experience, I specialize in building scalable, resilient, and high-performance distributed systems across both front-end and back-end technologies. My expertise spans Java and Spring Boot, React and TypeScript, Kafka, gRPC, and Reactive Java, along with cloud and container technologies such as AWS, Docker, and Kubernetes.At T-Mobile, I play a key role in developing and operating microservices for a customer account platform serving 50M+ customers, focusing on Kafka-driven async workflows, schema-first API design, Resilience4j fault tolerance, and end-to-end observability across 8 microservices — cutting MTTR from 4 hours to 45 minutes and reducing API response latency by 25%.Previously at Bharti Airtel, I contributed to large-scale payment platforms powering UPI transactions at 800+ TPS and 1M+ daily transactions with 99.9% uptime. I worked extensively on Reactive Java services, real-time fraud detection using Kafka Streams tumbling windows, gRPC-based service contracts, and AWS-based automation workflows that reduced operational overhead and improved system reliability.At Cisco Systems, I engineered an internal service request management platform using Java, Spring Boot, and React.js, resolved critical N+1 database performance issues cutting load times from 8 seconds to under 2 seconds, and maintained 85% test coverage with JUnit 5 and Mockito across sprint releases.Adept at working in Agile environments, I collaborate closely with cross-functional teams to translate complex business requirements into scalable technical solutions. I have strong experience in CI/CD pipelines, containerized deployments, performance tuning, and database optimization across PostgreSQL, MySQL, and Oracle.With a Master\'s degree in Computer Science from the University at Buffalo, I have a solid foundation in distributed systems, operating systems, databases, and concurrency. I am driven by solving complex engineering problems, improving system performance at scale, and designing architectures that can sustain real-world production demands.

Experience

1. Software Engineer

   T-Mobile

   May 2025 — Present · NY, US

   Launched full-stack features for the Customer Account Services platform (React.js, TypeScript, Java/Spring Boot), enabling plan upgrades, billing updates, and service provisioning for 50M+ customers.• Standardized a Schema-First API contract approach using OpenAPI/Swagger, eliminating integration friction between React frontends and Spring Boot microservices and reducing integration defects during releases.• Replaced 4 synchronous REST calls with Kafka async consumers for account update and activation flows, eliminating timeout cascades during downstream service degradation and enabling independent consumer group scaling.• Optimized high-traffic REST APIs using Java/Spring Boot and PostgreSQL, supporting 2K+ requests per minute and reducing average API response latency by 25% through SQL query tuning and connection pool optimization.• Configured Resilience4j circuit breakers (20-call sliding window, 50% failure threshold) with cached-state fallbacks, preventing cascading failures during peak iPhone Launch traffic spikes.• Instrumented correlation ID-based structured logging across 8 microservices via SLF4J/Splunk, enabling end-to-end request tracing and cutting MTTR for production incidents from 4 hours to 45 minutes.• Optimized CI/CD pipelines using Docker, Jenkins, and Kubernetes, cutting deployment turnaround time by 50% across development and staging environments.

Education

• Gokaraju Rangaraju Institute of Engineering and Technology

  Bachelor's degree, Computer Science

• University at Buffalo

  Master's degree, Computer Science