Java Developer Spring Boot

MOUNIKA DUMMU

Dallas, TX ***** 469-***-**** ************.*******@*****.***

https://www.linkedin.com/in/mounikadummu/ https://github.com/dummumounika/ PROFESSIONAL SUMMARY

• Experienced Java Developer with 3 years of expertise in backend development, microservices architecture, and cloud computing.

• Skilled in engineering scalable, secure, and high-performance backend systems using Java 8 features, Spring Boot, Microservices, JPA, and RESTful APIs.

• Proficient in applying design patterns like Factory and Singleton to ensure clean, maintainable codebase.

• Designed, containerized, and deployed microservices using Docker and AWS, enhancing deployment speed and reliability across multi- environment systems.

• Applied SOLID principles and design patterns to deliver maintainable, efficient code across large-scale enterprise projects.

• Delivered high-performance backend solutions in Agile teams through cross-functional collaboration and a focus on clean, efficient architecture.

WORK EXPERIENCE

Associate Aug 2021 – Dec 2023

Cognizant Technology Solutions Hyderabad, India

Client: Comcast

• Contributed to Comcast’s unified advertising platform, supporting multiple environments (Dev, Dev-Canary, UAT, Stage, Prod) for seamless order placement in linear and digital campaigns targeting specific cities across the U.S., impacting over 100 campaign launches per quarter.

• Engineered scalable backend services using Java 8 features and Spring Boot, improving system performance by 35% and operational efficiency by 25%, leading to faster campaign execution and reduced operational costs.

• Architected and modularized microservices for authentication, order processing, campaign tracking, and reporting, cutting system downtime by 20%.

• Applied core OOP concepts, SOLID principles, and design patterns (Factory, Singleton) to build robust, extensible, and maintainable Java applications, reducing maintenance overhead by 15%.

• Utilized Aspect-Oriented Programming (AOP) to separate cross-cutting concerns (logging, security, transactions), accelerating feature development by 10%.

• Integrated Redis caching, improving API response times by 30% and reducing database load during high-traffic periods.

• Strengthened service resilience with Resilience4j (circuit breaker, retries) and API rate limiting, decreasing outages by 40% and improving system stability during peak loads by 50%.

• Streamlined inter-service communication using Feign Clients to simplify RESTful interactions and enhance modularity, reducing API integration time by 20%.

• Automated email notifications for campaign updates using Java Mail API, improving communication and reducing manual overhead by 15%.

• Managed secure media storage and retrieval using AWS S3, ensuring durable and scalable handling of ad creative assets for over 200 active campaigns monthly.

• Containerized microservices using Docker and orchestrated cloud deployments on AWS ECS with EC2 instances and RDS databases, enabling consistent, scalable delivery pipelines and reducing deployment time by 40%.

• Enhanced observability by integrating centralized logging (ELK Stack) and distributed tracing (Zipkin), decreasing troubleshooting time by 30%, speeding up issue resolution for over 50+ incidents.

• Integrated Swagger UI for real-time REST API documentation, streamlining onboarding for 10+ new developers and cutting integration time by 15 hours per engineer; became go-to resource for API questions.

• Accelerated debugging and unit testing processes through structured Log4J logging and JUnit testing frameworks, reducing issue resolution time by 50%, improving overall code quality.

• Mentored junior developers on microservices best practices, containerization strategies, AWS cloud deployments, and clean code principles, resulting in a 20% productivity improvement and faster feature delivery. Intern April 2021 - Aug 2021

Cognizant Technology Solutions Hyderabad, India

• Contributed to the development of 15+ RESTful APIs using Spring Boot and JPA for managing product listings, user registration, and cart functionalities in an internal monolithic application, collaborating within a backend team of 6 engineers.

• Facilitated inter-service communication with REST Template, reducing latency between order management and user modules by 20%.

• Assisted in designing and implementing custom exception handling, standardizing API error responses across 5 major modules and improving debugging efficiency by 25%.

• Collaborated with teammates to develop asynchronous email notification services using Java 8’s CompletableFuture, improving system responsiveness during user-triggered events by 30%.

• Supported environment configuration management by maintaining multiple profiles (Dev, UAT, Prod), reducing deployment errors across stages by 15%.

• Helped implement Redis caching, optimizing product search performance and reducing database query load by 40%, enhancing user experience during peak traffic.

• Participated in refactoring Java modules, improving execution speed by 25% and reducing runtime errors by 30%, leading to more stable application releases.

• Developed and executed 60+ unit and integration tests using JUnit and Mockito, increasing critical module reliability by 35% and catching issues earlier in the development cycle.

• Worked closely with senior developers and mentors to gain hands-on experience with Agile practices, Git version control, and Maven-based CI pipelines, helping improve sprint delivery rates by 20%. PERSONAL PROJECT

BookMyShow – Microservices Project

Live Demo: https://movie-booking.maneeshsettipeta.tech/home GitHub Repository: https://github.com/BookMyShow-Microservices

• Designed and implemented a scalable microservices-based movie ticket booking platform, improving system scalability and feature extensibility by 60% and supporting 500+ concurrent users.

• Created 6+ core services (User, Admin, Search, Booking, Payment, Notification) using Spring Boot, applying SOLID principles and Java 8 features to enhance code maintainability and reduce technical debt by 40%.

• Dockerized services and orchestrated deployments on AWS ECS (EC2) while managing images with AWS ECR, reducing downtime by 65%.

• Integrated AWS RDS (PostgreSQL) for transactional data storage and AWS S3 for secure user profile image management, enhancing system reliability and data durability by 35%.

• Established centralized configuration management with Spring Cloud Config Server, service discovery with Eureka, and unified routing with API Gateway, increasing system efficiency by 50% and reducing service startup times.

• Secured user and admin endpoints using JWT authentication and Spring Security, strengthening access control and preventing unauthorized access across 100% of critical APIs.

• Introduced Resilience4j for circuit breaking and retry mechanisms, reducing system crashes and enhancing fault tolerance by 55%.

• Scheduled automated seat status update jobs, cutting booking errors by 30% and boosting user satisfaction ratings.

• Centralized logging with ELK Stack for efficient debugging, decreasing troubleshooting times by 60%.

• Built asynchronous operations for the notification service and applied the Factory Design Pattern to dynamically manage service implementations, improving application responsiveness by 25%.

• Configured secure CORS policies to support controlled frontend-backend communication across different origins.

• Created a custom shared dependency library using JitPack (models, utility classes), promoting code reuse and reducing code duplication by 40% across microservices.

• Established an automated CI/CD pipeline using Maven and Docker, cutting manual deployment effort by 70% and improving release cycles. EDUCATION

Master of Science in Computer and Information Science January 2024 - May 2025 Southern Arkansas University, AR, USA GPA: 4.0/4.0 TECHNICAL SKILLS

• Programming Skills : Java, SQL

• Frameworks : Spring Boot, Spring Cloud, JPA, JDBC, Spring Security, Spring AOP

• Microservices Architecture : API Gateway, Config Server, Service Discovery, Circuit Breaker

• Design Patterns : Singleton, Factory

• Principles and Practices : Solid principles, Multithreading, Java Collections

• Databases and Web Services : PostgreSQL, Redis, REST APIs

• Cloud and Messaging : AWS (EC2, ECS, S3, RDS, Route 53, IAM)

• Monitoring and Logging : Log4J, ELK Stack, Actuator, Zipkin

• Build and Deployment : Maven, Jenkins, Docker

• Tools and Platforms : GitHub, IntelliJ IDEA, Eclipse, Postman, Swagger, Jira, Junit, Mockito

• Platforms : Linux, Windows

• Other Skills : Problem-solving, Data Structures and Algorithms CERTIFICATIONS & AWARDS

• AWS Cloud Practitioner, Amazon Web Services (2025)

• Rising Star of the Year (2022), Cognizant Technology Solutions

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