Rajeev

He assumed technical ownership and responsibility for developing/deploying enhancements + bug fixes for the multi-application shared Data Cache Service built upon AWS ElastiCache with Redis, Java, and Spring Boot—hosted on AWS EC2 with Docker instances running on ECS. Document application design /architecture /setup etc. and share knowledge with other developers/teams.

• Utilized SOLID design principles and creational/structural/behavioral Gang of Four design patterns to develop robust application code (i.e. Factory, Adapter, Decorator, Strategy)
• Increased unit test code coverage by more than 60% for Java/Spring REST MVC microservice applications with JUnit and Mockito.
• Developed code using Java 8 features like lambda expressions, streams, predicates, and new date time API. Developed a Web Application using Java with the Google Web Toolkit API with PostgreSQL.
• Managed Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Chef, and Puppet. Hands-on experience with building tools like ANT, and Maven.

Technologies:  AWS (ElastiCache, EC2, ECS, Lambda), Redis, Java, Spring Boot, Docker, SOLID, REST, Spring MVC, JUnit, Mockito, APIs, Google API, PostgreSQL, Chef, Puppet, Ant, Maven, Git, HTML, CSS, Bootstrap, JavaScript, jQuery, Node, MongoDB, NoSQL, New Relic, Selenium WebDriver, Test Automation, Cucumber, Selenium, Apache POI, IntelliJ, IDE, Groovy, Artifactory

Worked with highly scalable, distributed, micro-service based applications. Architect in redesigning the legacy monolithic app into reactive micro services architecture.  Spearheaded the redesign of the payment modernization experience with major Reactive framework and integration of GBM machine learning in real-time applications.  Implemented DevOps practices such as infrastructure as code, continuous integration and automated deployment. Migrated the apps to be CI/CD Jenkins CI, compliance.

• Dockerized the apps for cloud readiness (AWS) and automate testing using ATDD Cucumber, Selenium, Protractor. Was also responsible for deploying / maintaining/ product support of the Apps in cloud Linux environment.
• Configured and Deployed application on Tomcat and WebLogic Application Server.
• Developed Automated testing scripts GUI & API’s using cucumber, protractor, selenium, readyapi and postman. Participated in coding Spring MVC components to handle requests.
• Implemented the Model View Controller architecture by developing controller and service implementation classes. Developed JavaScript and JQuery functions for all Client side Validations.
• Implemented design patterns like Front Controller, MVC, Business Delegate, Data Transfer Objects and Data Access Objects. Used Log4j Logger for all logging purposes. Developed server-side services using Java multithreading, Java, Springs, and Web Services (SOAP, AXIS).

Technologies:  Apache Spark, Cassandra, Kafka, Zookeeper, Docker, Spring Boot, Angular, ELK, DevOps, Jenkins, AWS, Cucumber, Selenium, Protractor, Linux, GitHub, Tomcat, WebLogic, Automated Testing, APIs, Spring MVC, MVC, JavaScript, jQuery, Log4j, SOAP, HTML, CSS, JSP

Followed Agile Methodology and participated in daily SCRUM meetings. Effectively used J2EE Design Patterns namely Session Facade, Factory Method, Command, and Singleton to develop various base framework components in the application. Worked on generating the web services classes by using SOA, WSDL, UDDI, and SOAP. Developed and implemented, the MVC Architectural Pattern using Spring MVC.

• Used UML to design various data, models including dataflow diagrams, workflow diagrams, sequence diagrams and interaction diagrams.
• Developed POJO objects corresponding to the database schema and implemented persistence in the business logic using Hibernate. Developed configuration files corresponding to beans mapped and backend database tables. Used Log4j for logging the output to the files.
• Implemented Ant and Maven build tools to build jar and war files and deployed war files to target servers. Used CVS for concurrent development in the team and for code repository.
• Used Eclipse as IDE for the development, build, deployment, and testing of the application.

Technologies:  Java, J2EE, Apache Spark, Cassandra, Apache Kafka, Docker, Spring Boot, Angular V7, 6, 4, ELK, Spring MVC, JavaScript, React, Node, SQL, XML, IntelliJ, Eclipse, REST, SOAP, WSDL, JAXB, GitHub, SLF4J, Log4j, JUnit, CI/CD, Openshift, Kuberneates, Maven, Gradle, Selenium, Groovy, RabbitMQ, AWS, Snowflake, Lambda, Rest API, Flutter, macOS, Windows, JSON, AJAX