Navamani Balusamy
Java Backend Developer
About
Java Backend Developer with 3 years of experience at TCS developing enterprise backend applications using Java, Spring Boot, Spring Security and REST APIs. Experienced in secure REST APIs, JWT authentication, role-based authorization, JPA/Hibernate and MySQL. Improved API response time by 25% through query optimization, caching and asynchronous processing.
Skills & Expertise (22)
Work Experience
Engineer
TCS
Jan 2024 - Present
Backend Developer – Credit Card Application Module | Java, Spring Boot. Developed REST APIs using Java and Spring Boot for a Credit Card Application system supporting region-wise KYC routing and compliance workflows. Implemented JWT-based authentication and role-based authorization using Spring Security. Improved API response time by 25% through SQL query tuning, caching and asynchronous processing. Followed layered architecture using Controller, Service and Repository components and RESTful API practices.
Education
B.Tech – Computer Science and Engineering - VIT University
2019 - 2023 · Afghanistan
Certifications
Java + Spring Boot + Microservices with REST API
Udemy · 2025
SQL Programming Basics
Udemy · 2025
Java Tutorial
Udemy · 2024
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Skills (22)
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