Chandana Duggasani Venkata

• Developed and deployed Spring Boot microservices for Walmart compliance processing, handling high-volume transactional data.
• Designed and implemented RESTful APIs using Spring MVC/Jersey with JWT-based Spring Security for authentication and authorization.
• Built responsive UI components using Angular, React, PrimeNG, JavaScript, HTML5, and CSS3 to deliver a dynamic single-page application.
• Integrated Cassandra and MySQL databases using Spring JDBC and Hibernate ORM, optimizing data access and transaction performance.
• Implemented event-driven processing using Kafka and Spark Streaming to ingest real-time data and store in HDFS.
• Developed Node.js services for crypto integrations and secure communication with HSM devices.
• Created serverless workflows using AWS Lambda, API Gateway, S3, and DynamoDB for scalable, event-based processing.
• Built CI/CD pipelines with Jenkins, Git, and Gradle, enabling automated build, test, and deployment across QA and production.
• Automated sanity and regression testing using Selenium WebDriver, TestNG, and JUnit, with email alerts on failures.
• Applied Spring AOP, IoC, Swagger, Java 8 Streams, and multithreading to improve code modularity, documentation, and performance.
• Monitored production services on Apache Tomcat, performed root-cause analysis, and implemented process improvements to reduce incidents.
• Worked in Agile/Scrum environment, contributing to design reviews, UML documentation, and cross-team deliverables.

Environment: Java 8, Spring Boot, Spring MVC, Angular, React, Node.js, REST/SOAP, Kafka, Spark, Cassandra, MySQL, Hive, AWS (Lambda, API Gateway, S3, DynamoDB), Jenkins, Git, Gradle, Selenium, TestNG, JUnit, Apache Tomcat, Linux/Windows.

• Developed and deployed Spring Boot microservices to support enterprise banking applications and product delivery.
• Built secure RESTful APIs using JAX-RS (Jersey) with JWT-based authentication.
• Implemented SOAP/WSDL web services for integration with legacy banking systems.
• Designed data access layers using Spring JDBC, Hibernate, and MongoDB, supporting both relational and NoSQL data models.
• Developed Oracle PL/SQL objects including tables, views, triggers, packages, and stored procedures for complex transactions.
• Built Kafka-based data pipelines for distributed messaging and persisted data into HBase for high-throughput processing.
• Applied Java 8 features (Streams, Lambdas, functional interfaces) and Spring AOP/IoC to improve code modularity and performance.
• Implemented CI/CD workflows using Git, Maven, and Jenkins for automated build and deployment.
• Supported production releases, performed log analysis with Log4j, and resolved defects in an Agile/Scrum environment using JIRA.

Environment: Java 8, Spring Boot, Spring MVC, JAX-RS, REST/SOAP, AngularJS, JavaScript, HTML5, CSS3, Hibernate, Oracle, MongoDB, Kafka, HBase, Maven, Jenkins, Git, JUnit, Tomcat, Windows.

• Developed a Java-based application to manage and update student status records using core Java and Hibernate.
• Built UI components using AngularJS, HTML5, CSS3, and JSON with client-side validations following MVC architecture.
• Implemented RESTful web services for data exchange across internal modules.
• Designed and managed data persistence using MongoDB and MySQL.
• Performed unit testing with JUnit and supported manual QA testing and production deployments.
• Assisted with application support, software installations, and environment setup for development teams.
• Worked in an Agile/Scrum environment using JIRA for task tracking and defect management.

Environment: Java, Spring MVC, AngularJS, REST, Hibernate, MongoDB, MySQL, JUnit, HTML5, CSS3, JavaScript, Tomcat, Windows.

• Developed enterprise web applications using Spring MVC, Struts, Servlets, and JSP following MVC architecture.
• Built dynamic UI components using AngularJS, JavaScript, jQuery, HTML5, and CSS3 to enhance user experience.
• Implemented SOAP web services using JAX-WS/JAX-RS for integration with internal healthcare systems.
• Designed data access layers using Hibernate ORM, Spring Data, and JPA, with complex queries on Oracle.
• Created reusable CRUD component libraries to accelerate development across multiple projects.
• Developed custom JSP tag libraries and backend controllers for modular, maintainable code.
• Wrote PL/SQL stored procedures for transactional operations and optimized database performance.
• Performed unit testing using JUnit, PowerMock, and EasyMock and documented solutions in Confluence.

Environment: Java, Spring MVC, Struts, AngularJS, JSP, Servlets, Hibernate, JPA, Oracle, SOAP, JUnit, JBoss, HTML, CSS, JavaScript, jQuery.