Umesh Reddy Janumpally

About Umesh Reddy Janumpally

As a versatile Full Stack Developer, I specialize in building scalable, efficient, and…

Experience

1. Senior Java Full Stack Developer

   Apple

   Mar 2025 — Present · Austin, TX, US

   Designed and developed secure, scalable full-stack modules for Apple\'s LLM-based product called ‘ENDOR’ using Java(Spring Boot) microservices for high-performance backend processing. Utilized Spring Boot and Java 17 to create stateless, scalable services with built-in security and API governance. IntegratedSpring Security, OAuth2, and JWT for implementing industry-standard authentication and authorization protocols. Developed web-based admin dashboards using HTML5, CSS3, and JavaScript to manage and audit user permissions,roles, and authentication tokens. Designed and implemented the Bulk Permission Check API, capable of validating billions of access checks efficiently usingbatching mechanisms, worker pool patterns, goroutines, and Go channels, significantly improving system performanceunder heavy load. Containerized all microservices using Docker, ensuring environment consistency across development and production.Deployed services in Kubernetes (EKS) clusters, leveraging Helm charts for deployment automation and versioning. Built reusable React components using functional programming and hooks (useState, useEffect, useContext, useReducer)to manage UI state, side effects, and inter-component communication. Utilized Oracle PL/SQL for storing and retrieving authorization metadata, audit trails, and entitlements with optimizedquery performance.

Education

• Jawaharlal Nehru Technological University Hyderabad (JNTUH)

  Bachelor of Technology - BTech