Sekhar Reddy

Thread Count Monitoring Root Cause Analysis: Updated the thread count runbook by implementing code changes to check high timed thread count status and identify the root cause using the runbook.

◦ Shipped SplitBill Microservice: Delivered a scalable SplitBill microservice using Java, Spring Boot, and microservices architecture; implemented multi-party payment requests, real-time state tracking (pending/paid/expired), and scheduler-driven reminders/expiry notifications, reducing manual follow-ups by 30%. ◦ Optimized Certificate Retrieval for Kubernetes: Reduced deployment time by 80% by enabling runtime SSL certificate retrieval from Kubernetes Secrets (vs. build-time embedding), eliminating manual updates and stabilizing the build-and-release workflow across services. ◦ Implemented Secure NFC Tokenization: Implemented secure tokenization for NFC-based transactions, applying encryption and OWASP-aligned controls to reduce sensitive data exposure risk by 40% while preserving low-latency contactless flows. ◦ Created Card Token Lifecycle Controls: Created a Card Token Lifecycle Management module (suspend/resume/replace) and accelerated processing via multithreading, reducing token-processing errors by 25% with PCI-DSS-compliant handling. ◦ Drove Design & Code Reviews: Drove design discussions, code reviews, and documentation updates to ensure testability, maintainable architecture, and clean handoffs, cutting PR rework by 15%. ◦ Authored Visa Encryption & Signing Framework: Authored an end-to-end encryption and signing framework for Visa integration (keystores/truststores, dynamic key mapping, JWS verification), decrypting inbound requests and generating signed/encrypted JSON responses to enforce confidentiality, integrity, and authenticity.

◦ Produced trainer metrics APIs: Accomplished responsive dashboard delivery by creating Java/Spring Boot APIs with optimized queries and server-side aggregation to compute trainer metrics efficiently. ◦ Implemented email OTP verification service: Accomplished reliable user verification by shipping an OTP workflow via Azure Communication Services with retry and fallback handling. ◦ Launched bulk upload processing: Accomplished scalable CSV ingestion by implementing validation, batch processing,and error reporting for high-volume uploads.

◦ Delivered Integration Services: Delivered backend services using Java EE, Spring Boot, and REST APIs for third-party integrations, boosting backend response reliability by 20%. ◦ Reduced JSON Processing Runtime: Reduced execution time by 30% by optimizing large JSON processing with multithreading and Java parallel streams. ◦ Elevated Test Coverage & Debugging: Elevated unit/integration validation using JUnit, Mockito, and TestNG,increasing test coverage by 25% and accelerating production issue diagnosis and resolution. ◦ Upgraded Spring Boot Baseline: Upgraded services from Spring Boot 2.5 → 2.6.9, strengthening maintainability and reducing compatibility issues by 15%.

The internship is of three months where I have worked on some interesting projects by using java and spring boot and have been trained with Java, Springboot Technologies.

I learned more things outside than in college.