JayaSundar Sajja
Java Backend Developer
About
Around 3 years of professional experience as a Java Backend Developer, specializing in the design, development, integration, testing, and deployment of enterprise-level applications using Java technologies across large-scale distributed environments. Experienced in delivering high-quality backend software solutions across multiple industries, including banking, healthcare, e-commerce, and insurance, adapting development methodologies and architecture patterns to meet domain-specific business requirements. Strong knowledge of Core Java concepts, including Object-Oriented Programming (OOP), Collections Framework, Exception Handling, Multithreading, and Concurrency, enabling the development of scalable, secure, and maintainable enterprise applications. Hands-on experience implementing modern Java features such as Lambda Expressions, Functional Interfaces, Stream API, and Parallel Streams to develop clean, efficient, and high-performance applications. Extensive experience working with the Spring Framework, including Spring Core, Spring MVC, Spring AOP, Spring Data JPA, Spring Security, Spring Boot, Spring Batch, Dependency Injection (DI), and Spring Testing for developing enterprise applications. Developed scalable backend applications using Java, Spring Boot, Spring MVC, Hibernate, JPA, and RESTful Web Services. Strong expertise in designing and implementing data persistence solutions using Hibernate ORM and Spring Data JPA, enabling efficient object-relational mapping, optimized database performance, and reliable data management. Skilled in designing, developing, and consuming RESTful Web Services, following REST architectural principles to build scalable, loosely coupled backend APIs. Strong database expertise with relational databases including MySQL, SQL Server, and PostgreSQL. Hands-on experience in writing SQL queries and developing Stored Procedures, Functions, Views, Indexes, Sequences, and Triggers to support application functionality, optimize query performance, and ensure efficient database management. Experience in deploying enterprise applications on application servers including Apache Tomcat, WebLogic, WebSphere, JBoss, and GlassFish. Experience working with Apache Maven for project build management, dependency management, and application packaging. Strong debugging and troubleshooting skills with the ability to analyze production issues and deliver reliable, stable, and high-quality backend applications. Hands-on experience with Docker for containerizing Java Spring Boot applications by creating Docker images, managing containers, and deploying applications across development and testing environments.
Skills & Expertise (39)
Work Experience
Java Backend Developer
BNCS Solutions pvt ltd
Oct 2025 - Present
Developed a Real Agricultural Market Workflow System to automate and streamline the operations of the Guntur Mirchi Yard, one of Asia's largest chili trading markets. The application digitizes the end-to-end auction and trading process between farmers, traders, and commission agents by providing secure backend services, business logic, database integration, and RESTful APIs for efficient transaction processing and data management.
Java Developer
Harsha Trainings Hyderabad
Jul 2023 - Sep 2025
Strong expertise in Core Java, including Multithreading, Collections, Generics, Serialization, File I/O, and Exception Handling, enabling the development of efficient and scalable enterprise applications. Strong understanding of Object-Oriented Programming (OOP) concepts, including Classes, Objects, Inheritance, Polymorphism, Abstraction, Encapsulation, and Exception Handling, enabling the development of robust and maintainable applications. Developed POJO-based entity classes and implemented Hibernate ORM with JPA for seamless integration with relational databases, enabling efficient object-relational mapping, optimized data persistence, and reliable data retrieval. Managed project dependencies and build lifecycle configurations for Spring Boot applications using Apache Maven (pom.xml), ensuring effective dependency management, version control, and streamlined build processes. Designed and implemented RESTful web services using Spring Boot, Spring MVC, Spring Data JPA, and Hibernate, developing scalable backend services for enterprise applications. Developed and maintained complex SQL scripts, including Stored Procedures, Functions, Triggers, Views, and Indexes, to implement business logic, optimize database performance, and ensure data integrity. Improved database performance through query optimization, indexing strategies, and efficient data access techniques, ensuring reliable and high-performance backend applications. Designed scalable backend applications using JPA and Hibernate, implementing object-relational mapping to ensure efficient data persistence and optimized database interactions. Automated project builds and dependency management using Apache Maven, configuring the build lifecycle and plugin management to ensure consistent builds and efficient deployment.
Education
Bachelor of Computer Science - Jawaharlal Nehru Technological University
2018 - 2022 · Afghanistan
Certifications
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Skills (39)
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