DAYANA DEEPTHI KALLURU

Developed a full-stack research analytics platform processing 50K+ structured records, reducing manual data preparation time by 40% through automated preprocessing pipelines. Designed and optimized RESTful APIs and SQL queries using Java-based backend services, improving system response time by 25% under concurrent workloads. Contributed to system design and microservices-style backend architecture, collaborating in Agile/Scrum teams and participating in peer code reviews to ensure scalable software development.

Built multithreaded Java backend services using ExecutorService and CompletableFuture to process 100K+ telemetry records per cycle, enabling efficient distributed data processing. Refactored legacy modules using SOLID principles and design patterns, reducing memory overhead by 20% and improving maintainability across multiple backend components. Implemented unit tests using JUnit and Mockito and optimized SQL queries, improving debugging turnaround time by 30% and increasing backend system reliability.

Developed a full-stack e-commerce application using Java Spring Boot backend APIs and React frontend, implementing 12+ REST endpoints for cart and order management. Implemented JWT-based authentication and role-based access control, securing 10+ APIs and ensuring protected access across user workflows. Improved order retrieval performance by 25% through optimized SQL queries and database indexing strategies.