Jagadeesh J

About Jagadeesh J

An innovative Java Developer with expertise in Core Java, J2EE, and modern Java versions (Java 8,11 & Java 17), specializing in enterprise application development with Spring Boot, Spring MVC, and Hibernate. Proficient in both backend and frontend development, delivering scalable, high-performance applications. Backend Development:Strong expertise in Spring Boot, Servlets, JDBC, Hibernate, and microservices architecture.Designed and developed RESTful APIs with Spring Security for authentication & security.Experience with MySQL, PostgreSQL, and MongoDB for efficient database management.Worked with Apache Kafka and IBM MQ for real-time data streaming solutions. Frontend & UI Development:Developed dynamic, user-friendly UIs with React.js, Bootstrap, and Tailwind CSS. Cloud & DevOps:Proficient in AWS services (ECS, S3, IAM, Lambda, CloudWatch) for cloud-based deployments.Hands-on experience with Docker & Kubernetes for containerization and orchestration.Built and managed CI/CD pipelines using Jenkins, Maven, Git, and GitHub.Ensured code quality and testing with JUnit 5, Mockito, and SonarQube. Agile & Collaboration:Experienced in Agile & Scrum methodologies, actively contributing to sprint planning, stand-ups, and retrospectives.Strong collaboration skills with Git, Bitbucket, Jira, and IntelliJ IDEA for development and project management.

Experience

1. Full-stack Java Developer

   Fiserv

   Jan 2023 — Present

   Engaged in front-end development using HTML, jQuery, Angular 8, JavaScript, and AJAX for dynamic user interfaces.Built Spark applications using Scala and Java to process data from RDBMS and streaming sources in real-time.Designed and implemented ETL pipelines using Python, Snowflake, and SnowSQL for data extraction, transformation, and loading.Developed Python/Django-based web applications integrated with MySQL DB and third-party services such as email, messaging, and storage.Worked on backend development using Node.js, Express, and Go (Golang), along with MongoDB and third-party services like Firebase and Kinvey.Utilized Angular 8 to create complex UI components, filters, and font size modifiers with Redux for state management.Designed and operationalized large-scale data and analytics solutions on Snowflake Cloud Data Warehouse.Used Spark Streaming APIs to process Kafka data in real-time, saving it into Cassandra for further analysis.Developed business logic and backend components using Java 11, Spring Boot, Spring AOP, Hibernate/JPA, and RESTful web services.Implemented OAuth2 security in RESTful APIs for user authentication and data security.Deployed microservices using AWS Docker containers and automated deployments using AWS Code Pipeline and ECS.Developed and deployed Dockerized Spring Boot applications using AWS Elastic Beanstalk.Created and managed AWS Lambda functions, EC2 instances, and security configurations in AWS VPC.Integrated Swagger UI and wrote comprehensive integration tests to ensure API functionality.Used Jenkins for managing CI/CD pipelines, automating the build and deployment process for various environments.Managed MongoDB databases with CRUD operations, ensuring high availability and performance.Worked with Apache Tomcat to run and manage Spring Boot applications.

Education

• Presidency University Bangalore

  Bachelor of Technology - BTech, Data science

• Kennesaw State University

  Master's degree, Computer Science