Naga Sri Sai Chaitanya Kolluri
Hyderabad,TS
Summary
Results-driven Backend Engineer with over 2 years of experience at Cognizant, specializing in Java, Spring Boot, Kafka, MySQL, MongoDB, Redis, Docker, and Kubernetes. Proven expertise in developing scalable microservices, secure REST APIs, and event-driven systems for high-profile enterprise clients including Liberty Mutual and American Express. Strong proficiency in JWT/OAuth2 authentication, CI/CD automation, and performance optimization, with a track record of solving over 700 data structure and algorithm problems. Passionate about system design and innovative applications of Generative AI.
Overview
2
2
years of professional experience
1
1
Certification
Work History
Software Engineer
Cognizant India
12.2022 - Current
- Liberty Mutual Insurance (Agents of Hub Squad), American Express: Software Developer - Worked on backend microservices to support customer and agent workflows, ensuring secure, scalable, and reliable applications. Key initiatives include Party API, Party Proxy, Party Delta Detection (OM Change Data Capture), Household Doc Loader, and complete end-to-end ownership of the Party Test Harness.
- Roles and Responsibilities:
- Designed and implemented RESTful API endpoints using Java & Spring Boot.
- Performed vulnerability analysis and remediation to ensure compliance and security.
- Built Kafka-based event-driven workflows to enable change data capture and asynchronous processing.
- Migrated CI/CD pipelines from Bamboo to GitHub Actions, streamlining automation.
- Deployed microservices on AWS using Kubernetes, ensuring high availability and scalability.
- Developed JUnit test cases, added exception handling, and conducted code reviews to improve code quality.
- Collaborated with cross-functional teams in an Agile/Scrum environment for sprint planning and delivery.
- Technologies Used: Java, Spring Boot, Kafka, MySQL, MongoDB, DataSource DB, ReactJS, Redis, Git, GitHub Actions, Kubernetes, AWS
Full Stack Developer Intern
Smartinternz
05.2021 - 12.2021
- Internship: Full Stack Developer - Contributed to the development of an HRMS system to streamline onboarding, role assignment, and employee management. Worked across frontend (React + Bootstrap) and backend (Spring Boot APIs), ensuring secure, optimized, and user-friendly application delivery.
- Roles and Responsibilities:
- Built modular React + Bootstrap components, improving responsiveness and overall UX.
- Developed Spring Boot RESTful APIs, reducing system downtime by 20%.
- Optimised MySQL database performance using indexing and query tuning, achieving 35% faster queries.
- Implemented JWT-based authentication, role-based access control, and Spring Security.
- Followed Agile/Scrum methodology with sprint planning, daily stand-ups, and cross-functional collaboration.
- Technologies Used: ReactJS, Bootstrap, Java, Spring Boot, MySQL, JWT, Spring Security, Git, Agile/Scrum
Education
B.Tech - CSE
Gudlavalleru Engineering College
01.2022
Intermediate - MPC
BIEAP Board
01.2018
Skills
- Language: Java, JavaScript, SQL
- Frameworks: SpringBoot, JPA, Hibernate, Spring Security, Rest Services, ReactJS
- Database: MySQL, PostgreSQL, MongoDB, Redis
- Tools: Kafka, Docker, Kubernetes, GitHub Actions, Bamboo, AWS (EC2, S3, VPC, Beanstalk, Railway), Git & GitHub, ELK Stack, JUnit, Mockito
Certification
- AZ-900 Certified (Microsoft Azure Fundamentals).
- Solved 700+ LeetCode problems, global rank 65,782, coding streak 500+ days.
- Active contest participant (rating 1563, top 210K / 700K+ globally).
- Qualified for GEC Peer Mentoring & Corrective Feedback programs.
- Hackathon participant, Cognizant Vibe Coding.
STRENGTHS
- Strong in backend architecture design, scalable microservices, and problem-solving.
- Enthusiastic team player with excellent communication and adaptability.
- Passionate learner, keen on Generative AI, distributed systems, and emerging technologies.
Timeline
Software Engineer
Cognizant India
12.2022 - Current
Full Stack Developer Intern
Smartinternz
05.2021 - 12.2021
Intermediate - MPC
BIEAP Board
B.Tech - CSE
Gudlavalleru Engineering College