Java Developer (7 hours )

Job Description

Senior Java Developer PROFESSIONAL SUMMARY: • 8+ years of Software experience in Design, Development and Deployment of Web-based Client- Server business applications using OOP, Java/J2EE technologies. • Experience in Agile software development process, Test Driven Development and Scrum methodologies. • Proficient in applying design patterns like MVC, Singleton, Session Facade, Service Locator, Decorator, Front Controller, Data Access Object. • Experienced in developing web applications by implementing Model View Control (MVC) architecture using JSP Servlets, J2EE Design Patterns, Struts, Spring Framework (Spring MVC/IOC/ORM/AOP/Security/Boot). • I have worked in creating dash boards, reports using BackBone.Js. • I have extensively used the following frameworks: SpringMVC, Struts framework, JSF, spring and hibernate. • IOC and Dependency Injection in various aspects of Spring Framework (Core, Web, JDBC, MVC and DAO). • Deployed Production ready Java/ J2EE applications using Elastic Beanstalk, where it auto configures the capacity provisioning through Autoscaling, load balancing, application health monitoring and Proficient in using Amazon Web Services AWS. • Performed various ETL Transformations between Sources toTarget Data mapping workshops. • Extensive experience focusing on services like EC2, VPC, Cloud Watch, Cloud Front, Cl TECHNICAL SKILLS: Java Technologies JDBC, Servlets, JSP, JST, Struts, Spring 2.5/4.0, Hibernate, WebServices (SOAP, REST), JSF, JMS, JAXB. Applets, AWT Frameworks Apache Struts 1.3 /2.0, Spring 2.5 /4.0, Spring MVC, Hibernate,jQuery 1.6 /1.8, JSF, JUnit, Testing, Log 4j, Spring Boot, Spring Security, AOP,ANT, Maven, IBM MQ Series 5.3 ApplicationServers WebLogic 8.1/10.3, Tomcat, JBoss, WebSphere 6/7 IDE & Tools Eclipse 3.3+, IntelliJ, NetBeans 5.5+, RAD 7.0, Rally, Quality Center8.0, Visio, AQT, SQL Developer, TOAD, SOAP UI, Rational Rose,JBuilder, Console, Jenkins, Sonar, Gradle. Reporting Tools SQL Server Reporting Services Databases Oracle 10g/11g, MySQL, MS SQL Server 2008/12/16, MySQL 5.1,DB2 Version Control GIT, SVN, CM Synergy, Rational Clear Case, CVS, VSS Software Process/ Methodologies Agile, Waterfall, Test Driven Development Operating Systems Unix, Linux, Windows, MS-DOS Architectures J2EE, Layered, Service Oriented Architecture (SOA) MVC1, MVC2 Programming Languages Java, Java 8, J2EE, Scala 2.12.1 SQL, PL/SQL, JavaScript. DevOps/ CloudTools Jenkins, Git, Docker, Kubernetes, AWS PROFESSIONAL EXPERIENCE: Cigna- Bloomfield, CT Nov 2023 – Till Date Full Stack Developer • Developed Restful web services and microservices with Java, Spring Boot, Groovy, and Groovy on Grails. • Implemented Java 8+ features such as lambda expressions, filters, and Parallel operations on collections for effective sorting mechanisms. • Build interactions of multiple services through REST and Apache Kafka message brokers. • Developed POC’s and Solution’s for various system components using Microsoft Azure. • Created Azure Logic app to integrate services in the organization. • Utilized Grafana, Swagger, and Splunk to inspect and analyze the performance of services. • Implemented unit test using Spock, feature test using Selenium, and performance test using Gatling to achieve service accuracy. • Implementing Java EE components using Spring MVC, Spring IOC, Spring Transactions, and Spring Security modules. • Developed Restful web services and microservices with Java, Spring Boot, Groovy, and Groovy on Grails, integrating .NET APIs for seamless data exchange and interoperability between Java and .NET components. • Translating functional requirements into technical design specifications. • Implemented POJO & DAO and used Sprint Data JPA and Hibernate to create an object-relational mapping of the database using annotations and reduce boilerplate code. • Utilized Camunda to implement business decision and workflow automation. • Maintained CI/CD process with GitHub, Jira, Docker, OpenShift, and Jenkins to speed up the process from code base to production and used Maven to build the application. Environment: Java8+, Spring Boot, Groovy, Kafka, RESTful web services, .NET, Microservices, Grafana, Swagger, Jenkins, Git, Azure, Jira, Spock, Selenium, pair programming, Gatling, Maven, MySQL, JSON, IntelliJ, DB-Visualizer. Client: Kyndryl – IBM Role: Senior Full Stack/ Java Developer Jun 2023 –Oct 2023 Responsibilities: • Collaborated with cross-functional teams to identify and remediate vulnerabilities by analyzing Mend scan results. • Utilized the Maven repository to source non-vulnerable library versions, enhancing code security. • Successfully deployed code to VT (Validation and Testing)and QA (Quality Assurance) environments, ensuring rigorous validation. • Managed and tracked project changes efficiently using JiraSoftware and Agile methodologies. • Leveraged tools like Eclipse, Postman, and Visual Studio Code for development tasks, ensuring code quality and efficiency. • Proficiently used Jira, White Source, Git, Jenkins, and JFrogfor project management, version control, and streamlined development and deployment processes. Client: Ulta Beauty - Bolingbrook, IL Aug 2022- Mar2023 Role: Java Developer Responsibilities: • Deployed Spring Boot based Micro services Dockercontainers Using AWS EC2 containers services and using AWS admin console. • Designed website user interface, interaction scenarios and navigation based on analyst interpretations of requirement and use cases. • Worked one-on-one with client to develop layout, colorscheme for his website and implemented it into a final interface design with the HTML5/CSS3 and JavaScript. • Migrated the server using the AWS services to a cloudenvironment. • Experienced in inter-facing and e-Learning layout forweb/desktop/mobile using HTML. • Worked on developing the server-side code of the applicationusing Node JS and Express JS. • Involved in writing application-level code to interact with API's, Web Services using AJAX, JSON and XML. • Experience in working with AWS, EC2, and S3, Cloud watchplatform. Created multiple VPC, Subnets in AWS as per requirements. • Strong Expertise in producing an API using RESTful WebServices for web-based applications and consuming RESTful Web Services using AJAX and JQuery and rendering JSON response on UI. • Designed and developed User Interface Web Forms usingFlash, CSS, JavaScript. • Created Dynamic Integration of JQuery Tab, JQuery, andanother JQuery component integration with Ajax. • Worked with Typescript decorators, interfaces, type restrictions and ES6 features. Client: AT&T, Atlanta, GA Mar 2019 - Jul 2022 Role: Full StackDeveloper Responsibilities: • The application is designed using J2EE design patterns andtechnologies based on SOA architecture. • Used Java 8 features including Parallel Streams, Lambdas,functional interfaces and filters. • Worked on REST APIs, and Elastic Search to efficientlyhandle and searching JSON data. • Worked with Container service Docker with build port andother utilities to deploy Web Applications. • Interacted with users, customers and Business users forrequirements and training with new features. • Developed various helper classes needed following core java multithreaded programming and collection classes. • Developed Web Based UI using frameworks JQuery,Bootstrap, JavaScript and AJAX for client-side validations. • Implemented Circuit breaker pattern, integrated hystrixdashboard to monitor spring microservices. • Secured the REST API’s by implementing OAuth2 token-based authorization scheme using Spring security. • Installed, secured, and configured AWS cloud servers andAmazon AWS virtual servers (Linux). • Deployed Spring Boot based microservices Docker container using AWS EC2 container services and AWS admin console. • Worked on spinning up AWS EC2 instances, Creating IAM Users and Roles, Creating Auto Scaling groups, Loadbalancers and monitoring through Cloud Watch for theapplications, S3 buckets, VPC etc. • Create and configured the continuous delivery pipelines fordeploying microservices and lambda functions using CI/CD Jenkins server. • Used Apache Kafka for reliable and asynchronous exchange of information between business applications. • Worked on Swagger API and auto-generated documentationfor all REST calls. • Implementing or exposing the Microservice architecture withSpring Boot based services interacting through a combination of REST and Apache Kafka and zookeeper message brokers. • Extensively used Hibernate 4.2 concepts such as inheritance,lazy loading, dirty checking and transactions. • Used Jenkins and pipelines to drive all Microservices builds out to the Docker registry and then deployed to Kubernetes, Created Pods and managed using Kubernetes. Environment: Java, Java 8, HTML 5, CSS 3, Bootstrap,Python, ReactJS, Node JS JavaScript, Ajax, Maven, Spring4.x, Hibernate 4.x, Docker, AWS S3, VPC, REST, WebLogicServer, Swagger API, Kafka, Kubernetes, Jenkins, GIT, Junit, Mockito, Oracle, MongoDB, Agile Scrum. Client: CenturyLink, Denver, CO Jun 2018 – Feb 2019 Role: Full StackDeveloper Responsibilities: • Designed and developed business components using SpringAOP, Spring IOC, and Spring Batch. • Involved in requirements gathering and analysis from theexisting system. • Worked with Agile Software Development. • Implemented DAO using Hibernate, AOP and service layerusing spring, MVC design. • Developed Java Server components using spring, Spring MVC, Hibernate, Web Services technologies. • Using Java1.7 with generics, for loop, static import, annotations etc , J2EE, Servlet, JSP, JDBC, Spring3.1 RC1,Hibernate , Web services (Axis, JAX-WS, JAXP , JAXB)JavaScript Framework (DOJO, JQuery, AJAX , XML, Schema). • Used Hibernate as persistence framework for DAO layer toaccess the database. • Used Github and Jenkins for building the CI/CD pipeline and day to day builds and deployments using Gradle. • Designed and developed Restful APIs for different modulesin the project as per the requirement. • Developed JSP pages using Custom tags and Tilesframework. • Developed RESTful service interface using Spring boot tothe underlying Agent Services API. • Developed the persistence layer (DAL) and the presentationlayer. • Used MAVEN for build framework and Jenkins forcontinuous build system. • Extensive experience of developing Representational statetransfer (REST) based services and Simple Object Access Protocol (SOAP) based services. • Developed GUI using Front end technologies JSP, JSTL,AJAX, HTML, CSS and Java Script. • Developed a code for Web services using XML, SOAP andused SOAPUI tool for testing the services proficient in testing Web Pages functionalities and raising defects. • Configured and deployed the application using Tomcat andWeb Logic. • Used Log4J to print info, warning and error data on to thelogs. • Prepared auto deployment scripts for Web Logic in UNIXenvironment. • Used Java Messaging artifacts using JMS for sending outautomated notification emails to respective users of the application. Environment: Java, J2EE, Spring Core, Spring Data, Spring MVC, Spring AOP, Jenkins, Spring Batch, Spring Scheduler, Restful Web Services, SOAP Web Services, Hibernate, Eclipse IDE, Angular JS, JSP, JSTL, HTML5, CSS, JavaScript, Web Logic, Tomcat, XML, XSD, Unix, Linux, UML, Oracle, Maven, SVN, SOA, Design patterns, JMS, JUNIT, log4J, WSDL, JSON, JNDI. Client: Verizon, Irving, TX Apr 2017 – May 2018 Role: Java Developer. Responsibilities: • Identified the Business requirements of the project andinvolved in preparing System Requirements for the project. • Used XML/XSLT for transforming common XML formatand SAML for Single Sign-On. • Designed configuration XML Schema for the application. • Used JavaScript for the client-side validation. • Extensively used Git for version controlling and regularlypushed the code to GitHub. • Used Spring Boot framework to create properties for various environments and for configuration. • Developed both Restful and SOAP web services dependingon the design need of the project. • Used XML Http Request Object to provide asynchronous communication as part of AJAX implementation. • Used Redux to create a store which contains all the states of the application, fetched data from the back end and used Middleware Redux-promise efficiently. Used SAML to implement authentication and authorization scenarios. • Implementing or exposing the Micro services to base onRESTful API utilizing Spring Boot. • Used Rest Controller in Spring framework to create RESTful Web services and JSON objects for communication. • Extensively used MVC, Factory, Delegate and Singletondesign patterns. • Developed server-side application to interact with databaseusing Spring Boot and Hibernate. • Deployed Spring Boot based micro services Docker container using Amazon EC2 container services and using AWS admin console. • Used Spring Framework AOP Module to implement logging in the application to know the application status. Environment: Core Java/J2ee, React JS, Micro Services, CSS,JDBC, Ajax, Spring AOP Module, Ant Scripts, JavaScript, Eclipse, UML, Restful, Rational Rose, Tomcat, Git, Junit, Ant. Client: Capital group, San Antonio, TX Jan 2016 –Mar 2017 Role: Java Developer Responsibilities: • Involved in requirements gathering and analysis from theexisting system. • Worked with Agile Software Development. • Designed and developed business components using SpringAOP, Spring IOC, and Spring Batch. • Implemented DAO using Hibernate, AOP and service layerusing spring, MVC design. • Developed Java Server components using spring, Spring MVC, Hibernate, Web Services technologies. • Using Java1.7 with generics, for loop, static import, annotations etc., J2EE, Servlet, JSP, JDBC, Spring3.1 RC1,Hibernate, Web services (Axis, JAX-WS, JAXP, JAXB)JavaScript Framework (DOJO, jQuery, AJAX, XML, Schema). • Designed and developed Restful APIs for different modulesin the project as per the requirement. • Developed JSP pages using Custom tags and Tilesframework. • Developed the User Interface Screens for presentation logicusing JSP and HTML. • Developed SQL queries to interact with SQL Server databaseand involved in writing PL/SQL code for procedures and functions. • Used MAVEN for build framework and Jenkins forcontinuous build system. • Developed GUI using Front end technologies JSP, JSTL,AJAX, HTML, CSS and Java Script. • Developed a code for Web services using XML, SOAP andused SOAPUI tool for testing the services proficient in testing Web Pages functionalities and raising defects. • Configured and deployed the application using Tomcat andWeb Logic. • Used Design patterns such as Business Object (BO), Service locator, Session façade, Model View Controller, DAO and DTO. • Used Log4J to print info, warning and error data on to thelogs. • Prepared auto deployment scripts for Web Logic in UNIXenvironment. • Used Java Messaging artifacts using JMS for sending outautomated notification emails to respective users of the application Environment: Java 1.6, Spring-Hibernate integrationframework, Angular JS, JSP, Spring, HTML, Oracle 10g, SQL, PL/SQL, XML, Web logic, Eclipse, Ajax, jQuery. EDUCATION Ramkumar Sundarajan Meenakshi - Lead Architect (www.linkedin.com/in/ramkumar-sm) And possibly ateam members like Ankur and/or Viswajith What to expect: From this morning’s interview Spoke with Ankur and Viswajith 1 hour call Very technical interview What did they talk about Java Concepts Java, Spring Boot Scenario based on designing a microservice Be ready to talk in detail about your past projects Be ready to answer some technical and situational questions Be ready to explain the how’s and the why’s of your projects: Osmania University - Bachelor of Science CERTIFICATION: AWS Certified Solutions Architect- Associate from AmazonWeb Services ( What to expect: From this morning’s interview Spoke with Ankur and Viswajith 1 hour call Very technical interview What did they talk about Java Concepts Java, Spring Boot Scenario based on designing a microservice Be ready to talk in detail about your past projects Be ready to answer some technical and situational questions Be ready to explain the how’s and the why’s of your projects Answer all questions in technical way only based on this experience From now answer in technical way only in English Show more Show less