Thiru Vikram 1001

Java Developer

Madurai, Tamil Nadu, India 2+ yrs exp 84 · Excellent

About

Java Full Stack Developer with 2+ years of experience designing, developing, and optimizing enterprise-grade applications using Core Java (8/11/17), Spring Framework, Spring Boot, Spring MVC, Spring Security, and Hibernate/JPA. Strong foundation in Object-Oriented Design, Data Structures & Algorithms, Design Patterns, Multithreading, and the Collections/Streams API. Proven track record improving application performance by 30% and SQL query efficiency by 70% through backend optimization, profiling, and tuning. Experienced building and consuming RESTful APIs and Microservices, working across MySQL, PostgreSQL, Oracle, and MongoDB, and integrating event-driven systems using Apache Kafka. Comfortable across the full SDLC in Agile/Scrum teams, with hands-on exposure to Docker, Kubernetes, AWS (EC2, S3), Jenkins, GitHub Actions, and CI/CD pipelines. Strong debugging, unit testing (JUnit/Mockito/TDD), and cross-functional collaboration skills, with a continuous-learning mindset toward cloud-native and distributed systems development.

Skills & Expertise (77)

Java 8/11/17 Intermediate

6.8/10

Years Exp

REST APIs Intermediate

6.5/10

Years Exp

Spring Framework Intermediate

6.5/10

Years Exp

Docker Intermediate

6.5/10

Years Exp

SQL Intermediate

6.3/10

Years Exp

Microservices Architecture Intermediate

6.3/10

Years Exp

Agile Intermediate

6.0/10

Years Exp

JavaScript Intermediate

5.8/10

Years Exp

Data Structures & Algorithms Intermediate

5.5/10

Years Exp

SonarQube AWS (EC2, S3 Load Balancing code reviews Unit & Integration Testing Joins TDD Mockito JUnit Terraform GitHub Actions Indexing Jenkins Kubernetes Normalization Eclipse Distributed Systems SOA MVC Architecture System Design Basics Jira SDLC Scrum VS Code Log4j IntelliJ IDEA Gradle Maven Bitbucket GitHub Git SLF4J Streams API Spring MVC Spring Boot Observer Builder Factory Singleton Memory Management JVM Spring Security Lambda expressions Generics Multithreading & Concurrency Exception Handling Collections Framework OOP CSS3 HTML5 Swagger MongoDb Oracle Postgresql MySql RabbitMQ Apache Kafka Postman Openapi Query Optimization XML JSON GraphQL SOAP RESTful Web Services JPA Hibernate Spring Data JPA

Work Experience

Java Full Stack Developer

ChainSys India Pvt. Ltd.

Apr 2024 - Jun 2026

Developed scalable data migration and enterprise modules using Java, Spring Boot, and Hibernate/JPA, following clean-code and object-oriented design standards. Designed and implemented RESTful APIs for ETL and microservices workflows handling high-volume, high-concurrency data processing. Improved application performance by 30% and SQL data-retrieval efficiency by 70% through multithreading fixes, JVM profiling, and query optimization. Implemented centralized exception handling, structured logging (Log4j/SLF4J), and monitoring, reducing production incidents by a significant margin. Built and consumed REST APIs integrated with Apache Kafka for event-driven, asynchronous processing across distributed services. Containerized services using Docker and supported deployment pipelines with Jenkins/GitHub Actions as part of CI/CD adoption. Wrote unit and integration tests with JUnit and Mockito following TDD practices; participated in peer code reviews to maintain code quality. Collaborated with QA engineers, business analysts, and senior developers in Agile/Scrum ceremonies including sprint planning, standups, and retrospectives. Managed codebases with Git/Bitbucket and builds with Maven; documented modules and APIs using Swagger/OpenAPI for cross-team consumption. Applied Spring Security for authentication/authorization and role-based access control across internal enterprise applications.