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• Developed strong understanding of RESTful API development, crafting efficient and well-documented APIs to facilitate smooth data exchange between the frontend and backend.• Deployed and managed Java applications using Amazon Elastic Container Service (Amazon ECS) for containerized, scalable, and highly available deployments, with experience in creating and configuring ECS clusters to efficiently run Java-based microservices and distributed applications.• Utilized Apache Kafka, Spring Integration and Apache Spark for the process of Data Migration from Application to Application. • Developed stored procedures, Triggers and functions in Oracle to process the trades using PL/SQL and mapped it to Hibernate Configuration File and also established data integrity among all tables• Implemented the web services client to consume the third-party service API for validating credit cards.• Designed the UML, created class, sequential diagrams using Borland Together Architecture, modified code, configured WebLogic server and project in Oracle.• Worked on utilizing AWS cloud services like S3, EMR, Redshift, Lambda, Athena, and GlueMetastore. Used AWS Glue to crawl the data lake in S3 to populate the Data Catalog.• Usage of version control repository SVN (Subversion by apache), JIRA/ Quality Center for ticketing, Wiki for documentation, Jenkins for nightly build.• Proficient in monitoring and troubleshooting system performance using tools like Prometheus, Graphite, and CloudWatch, ensuring optimal functionality and reliability of Java-based applications.• Design shipping rate template upload UI using Adobe Flex and Developed Jasper report and used Ajax, Mockito, Web 2.0 to scrape the event data from various web sites.• Diploid payments processing technique and their development frameworks like Spring Doc, Spring Data REST, Spring HATEOAS, Spring Actuator.

• Designed and managed databases using Java and created Java-based APIs (RESTful Web Services) utilizing springboot and PostgreSQL.• Implemented Object-relation mapping in the persistence layer using hibernate frame work in conjunction with Spring Aspect Oriented Programming (AOP) functionality.• Developed user interface using JSP, AJAX, JSP Tag libraries and Struts Tag Libraries to simplify the complexities of the application. Developed user interfaces using JSP, JSF frame work with AJAX, Java Script, HTML, DHTML, and CSS.• Experienced in utilizing RabbitMQ and Amazon SQS messaging services within projects to facilitate efficient communication and streamline online operations.• Created SQL queries, PL/SQL Stored Procedures, Functions for the Database layer by studying the required business objects and validating them with Stored Procedures using DB2. Also used JPA with Hibernate provider.• Implemented functionality using Servlet, JSP, HTML and Struts Framework., Hibernate, Spring, Java Scripts, Hazel cast and WebLogic.• Docker for efficient containerization and deployment of applications in a microservices architecture.• AWS Kinesis and AWS Lambda to implement real-time data streaming and analytics. • Designed Use Cases using UML and managed the entire functional requirements life cycle using water fall model.• Worked with MySQL and SQL Server, possessing a strong grasp of relational database concepts. Proficiently constructed Query and Filter Expressions in DynamoDB to extract refined results from the NoSQL database.• Effectively utilized Cassandra database management system for storing user-generated data, and configured and accessed PostgreSQL database to retrieve application data using JDBC Application interfaces.• Worked on designing software solution by analysing system performance standard and increasing performance efficiency by 25%

• Managed repositories efficiently, utilizing SourceTree's user-friendly interface as a GIT client, while collaborating with GIT command lines and Stash. Employed AJAX and JSON communication to access data payloads from RESTful web services.• Defined and constructed layers, server-side objects and client-side interfaces based on J2EE design patterns, Developed and implemented Swing, spring and J2EE based MVC (Model-View-Controller) framework for the application.• Worked extensively with AWS services like EC2, S3, VPC, ELB, Autoscaling Groups, Route 53, Elasticache and Elastisearch, CloudTrail, CloudWatch, CloudFormation, CloudFront, SNS, and RDS.• Implemented client-side functionalities, including validations, service calls, sorting, and filtering, using scripting languages like jQuery and JavaScript. Made extensive use of Hibernate in the data access layer to retrieve and update information in the database.• Developing a user interface with HTML, CSS, JSP, jQuery, Ajax, AngularJS and JavaScript in cooperation with front-end developers.• Worked on Java Servlets, JavaServer Pages, Spring Framework which include Spring MVC, Spring Security and Spring Boot. • Focusing on back-end development to efficiently manage data processing, storage, and retrieval using Java frameworks like Spring and Hibernate.• designing and improving the database's schema, creating challenging SQL queries, and assuring the security and integrity of the data.• Worked on NoSQL databases like Cassandra and Mongo DB. • Learning company standards of software application software development, Agile, and iterative development methodologies. • Assisted in developing product roadmaps, providing specific suggestions that led to a 10% decrease in the overall timeline