SUMMARY:

• Over 8+ years of strong software experience in design, development and deployment of web - based Client-Server business applications using OOP, Java/J2EE technologies.
• Experience working with various Software Development Life Cycle (SDLC) methodologies based on Agile, Scrum, Waterfall Model, Iteration.
• Expertise in design and development of various web and enterprise-level applications using Java/J2EE technologies Such as Spring, Hibernate, EJB, JPA, JSF, Struts framework, Servlets 3.x.
• Strong experience in Spring Framework modules such as Spring MVC, IOC, AOP, JDBC, JTA, IO, Spring Boot, Spring Boot Actuator, Spring Batch, Spring Cloud, Spring Security Spring Microservices, Spring REST, Spring Eureka, Spring Ribbon, Spring Netflix, Spring Zuul.
• Experienced in UI frame works such as JQuery, Ajax, Google Web Toolkit (GWT), JavaScript, NodeJS, ReactJs, BackboneJS, Angular js, Angular 2, Angular 4, Tag Libraries, Custom Tags .
• Good knowledge in Angular 2.0 directives to create reusable elements and attributes, along with easy to test and maintain client side interactivity in web applications.
• Extensive experience in developing scalable, reliable and efficient enterprise applications using Java, Spring, Struts, Web Services, RESTful, JSF, JDBC, JSP, Servlets, EJB, JMS, XML, JAXB, PL/SQL, Unix scripting.
• Experienced in implementing Service oriented architecture and Web Services using SOAP, RESTFUL .
• Expertise in Microservices developing SOA (Service Oriented Architecture) and J2EE Web Services based on SOAP, WSDL, UDDI, JAX-WS, JAXB, JAX-RPC using tools like Apache Axis.
• Experienced in Middleware persistence frameworks like Hibernate/JPA Entities for mapping Java classes using Hibernate Query Language ( HQL ) , HSQL Named Queries, Criteria, Projections.
• Strong understanding of Micro services patterns - Circuit Breaker/Hystrix, DDD, Aggregator, Proxy Chaining .
• Implemented Java 8 features such as LambdaExpressions, Streams, Method references and Optionalclass to reduce the code size and simplify the operations.
• Experienced in working with Spring JDBC Templates, JMS Templates, Spring EAI, Spring Rest Templates .
• Experience in implementing n-tier Enterprise application with J2EE design patterns like IOC, AOP, MVC, Business Delegate, Service Locator, Session Façade, DTO, DAO, Front Controller, Factory and Singleton.
• Worked with high volume and complex PL/SQLstored procedures and packages using Oracle SQL.
• Proficient in implementation of ORM and Non-ORM frameworks like Hibernate, JPA, JDBC, iBatis.
• Experience in database modeling, design and development of PL/SQL stored procedures, packages in relational databases: Oracle 9i / 10g / 11g, SQL Server 2005/2008, DB2, PostgreSQL and MySQL.
• Strong experience with MongoDB development (reports, schema design, map reduce functions) and migrations from SQL relational databases to NoSQL databases like MongoDB, Cassandra and CouchDB.
• Expertise in design with Use Case, Sequence, Activity, and Class diagrams using UML, Sparxand Visio.
• Proficient in using Amazon Web Services AWS . Extensive experience focusing on services like EC2, VPC, Cloud Watch, Cloud Front, Cloud Formation, IAM, S3, Amazon RDS, ElastiCache, SNS, SQS .
• Development of services that utilize AWS SDK's (Dynamo DB, Elastic Beanstalk, EC2, Lambda).
• Expertise writing the Test Cases to be automated and performed functional testing of the front end using Selenium (IDE and Web Driver) & created Data Driven framework using Junit, Mockito, Easy Mock.
• Hands on experience with build tools like ANT, Maven, Gradle and logging tools like Log4J, SL4J.
• Experienced in Apache Spark for implementing advanced procedures like text analytics and processing using the in-memory computing capabilities written in Scala .
• Experience in creating Asynchronous Messaging configuration in Tomcat, Weblogic and web sphere Servers .
• Involved in CI/CD process using GIT, Jenkins creation, Maven build and publish, and Fabric implementation.
• Experience with Application Servers like IBM WebSphere, Oracle/BEAWebLogic,JBoss and Tomcat.
• Experience working on several Docker components like Docker Engine, Hub, Machine, creating Docker images, Compose, Docker Registry and handling multiple images primarily for middleware installations.
• Developed Interactive graphs using D3.js with JSON data.

TECHNICAL SKILLS:

Languages: Java 1.8, J2EE, Scala 2.12.1, Python 3.6.0, Drools, SQL, PL/SQL, Scala

Web Technologies: SERVLETS 3.1, JSP 3.0, JavaBeans 3.0, Java Servlets API 3.0

Frameworks: Spring 4.3, Hibernate 4.3, Angular JS 1.0/1.5/2.0, Spring Security 3.2, Spring MVC, Spring Boot, Spring Data, Spring Cloud, Spring Eureka, Spring AOP, Spring HATEOS, Spring Hystrix, Struts, Servlets, Java Swing, Applets, Spark

Design Patterns: Singleton, DTO Pattern, DAO Pattern, Delegate Pattern, Service Facade, Factory Pattern, Front Controller Pattern, MVC Pattern.

Application/Web servers: Apache Tomcat 8, IBM WebSphere 8.x/9.x, Jetty, JBOSS

Relational Databases: Oracle 10g/11g/12c, SQL server 2012/2014/2016, MySQL 5.7, DB2 11.1, PostgreSQL 9.4.10

NoSQL Databases: MongoDB, Cassandra, Couch DB, Neo4j, Cockroach DB

Internet Technologies: HTML 5, JavaScript 1.8, XML 2.0, JSON, CSS 3 and CSS 4, JQuery 2.11, Angular 1.6.6, Angular 2.0, Angular 4.0, BackBone.JS 1.3.1, Polymer.JS, Node JS 6.0.

Cloud Environments: Azure, AWS, Netflix Eureka, Mesos, Kubernetes, Docker.

IDE: Eclipse, NetBeans 8.0.2, IntelliJ IDEA 2017.1, Spring Tool Suite (STS) 3.8.3, WebStorm, Atom

Operating system: Windows 10, Linux Mint 18.1, Unix

Messaging: JMS MQ, IBM MQ, Rabbit MQ, IBM MQ 8.0

Testing Tools: JUNIT4.12, JMeter, Mockito, TestNG, Jasmine, Karma

Reporting Tools: Jasper Reports 6.0, Crystal Reports XI, SSRS 5.0

Methodologies: Agile, Waterfall, TDD (Test-Driven-Development), Scrum, Kanban

Build Tools: Ant 1.10, Maven 3.3.9, Gradle 3.4.1, Jenkins

Version and Source Control: GIT, Bit Bucket, CVS, SVN, GITHUB 2.12.0

XML Technologies: XML, XSLT, TCP/IP, LAN, WAN

SOAP, WSDL, JAX WS, JAX: RPC, REST, SAX/DOM parsers, Jersey, XML, XSD

PROFESSIONAL EXPERIENCE:

Confidential, Bloomington, MN

Sr. Java/ J2EE Full Stack Developer

Responsibilities:

• Involved in analysis, design, and implementation and testing phases of SDLC through Agile Methodology.
• Developed applications using Angular2, Java8 and new features of java (lambda expressions).
• Good working experience in web Designs which includes HTML5, XHTML, XML, CSS3, JavaScript, jQuery .
• Developed UI components using Angular 2 dependency Injection, Models, data binding and controllers.
• Implemented Angular 2 Router to enable navigation from one view to next as agent performs application tasks.
• Developed Application to asses JSON and XML from Restful web service from consumer side using Angular 2.
• Experience with Responsive Web Design, Bootstrap and Plygrid framework.
• Developed various generic JavaScript, Angular functions to implement client side validations.
• Developed Microservices with Spring Eureka to retrieve API routes for the entire cluster. Using this strategy each Microservice in a cluster can be load balanced and exposed through one API gateway.
• Developed Spring Restful/Microservices and implemented Spring Eureka, Netflix, Ribbon as part of Services Discovery using Apache Axis.
• Used Microservice architecture with Spring Boot based services interacting through a combination of REST and Apache Kafka message brokers.
• Involved in implementing Spring Netflix Hystrix fault tolerance library to prevent failure from cascading failures.
• Used Spring Security for session fixation, clickjacking, cross site request forgery.
• Secured API's by implementing OAuth 2.0 token based authentication/authorization using Spring Security.
• Extensively used various Spring Framework modules like MVC, Spring Boot, Spring Data and AOP.
• Implemented the associated business modules integration using Spring, and Hibernate data mapping.
• Implemented Object-relation mapping using Hibernate framework to fetch the data from Oracle 12c database.
• Used Spring MVC Transaction Management, Spring/Hibernate Batch Transactions and Hibernate cache concepts.
• Implemented Hibernate Template to great extent making use of HQL, Named Parameters, Named Queries and interfaces such as Expression, Query and Criteria.
• Developed Mongo DB Data Access Layer implementing Mongo Repository interface from Spring Data.
• Used Streams and Lambda expressions available as part of Java 8 to store and process the data.
• Implemented Spring MVC flow to interact with different modules and extensively used Spring AOP and Dependency injection during various modules of project.
• Developed several REST web services which produces both XML and JSON to perform tasks, leveraged by both web and mobile applications.
• Developed batch processing using Spring Batch in the persistence layer & improved performance of batch processes using Multithreading with Executor Framework for control of asynchronous tasks in parallel threads.
• Developed the Application using design patterns-Singleton, Factory, DAO, DTO prototype and Composite View.
• Implemented Java SE8 features like Lambda, Streams and Predicates to reduce the line of code and better functionality in the Service Layer of the application.
• Used Lombok library in the DTO layer to provide simple, boilerplate-free code.
• Deployed and developed the project using AWS EC2, S3 Buckets, Data pipeline, Elastic Bean Stalk, CloudWatch, AWS Server Migration Service, Lambda, Amazon messaging services (SQS) and Amazon Kinesis Services.
• Used GWT and Amazon AWS (EC2/S3/EBS) for prototyping and subsequent evaluation.
• Developed AWS cloud formation templates and setting up Auto scaling for EC2 instances and involved in the automated provisioning of AWS cloud environment using Jenkins and Chef.
• Worked on creation of custom Docker container images, tagging, pushing images, integration of Spring boot.
• Created the Docker containers and Docker consoles for managing the application life cycle.
• Developed Maven scripts and developed builds using Maven and continuous integration servers like Jenkins.
• Created automation test scripts using Selenium Web-Driver for multiple platforms and browsers testing.
• Worked on ROUTE 53, a scalable cloud DNS web service for effective routing, configuring DNS health checks.
• Used Drools Engine for writing Business Validation rules.
• Developed test cases and performed unit testing using JUnit.
• Used to test performance both on static and dynamic resources using JMeter.
• Resolved bugs/defects by coordinating with team members to assure a positive outcome using Jasper.
• Used JUnit to write unit test cases and mocked the Service and controllers using Mockito Framework.
• Using GIT for Source Control and Version Management and using log4j for logging.

Environment: Java 8, Spring MVC, Spring Boot , Angular 2, HTML5, CSS3, JSON, JavaScript, Node.js, Hibernate, Spring Data, Mongo DB, Oracle 12c, IntelliJ IDEA, Junit 4.4, Mockito, Git, Jasper, Selenium, Drools, AWS, Docker, Spring Cloud, RESTful web services, Apache Tomcat, IntelliJ, Atom, Maven, Jenkins.

Confidential, Houston, TX

Sr. Java/J2EE and Full Stack Developer

Responsibilities:

• Participated in Agile Scrum methodology for application development and involved in analysis, design, coding, and unit testing of business applications in a fast-paced environment .
• Developed User Interface application modules using HTML, CSS and JavaScript, ReactJS, JSON, and AJAX.
• Brief experience on implementing the ReactJS in creating animations based on CSS classes for a new requirement surfaced for the client.
• Extensively used/modified JQUERY to perform AJAX calls for creating interactive web pages on JSON response.
• Used JavaScript, jQuery for user interactions in pages. Creating a responsive web application integrating Bootstrap with ReactJS and media queries.
• Designed Prototype and project layout skeletons using ReactJS, JQuery, Express.js and CSS/LESS and HTML5.
• Used various jQuery and Bootstrap plug-in like date picker, Bootstrap selectors.
• Used Spring Dependency Injection, Annotations and Spring MVC components to implement business layer and navigation part of application.
• Consumed Web Services for getting the credit card information from third party application.
• RESTful web services using Jersey for JAX-RS implementation.
• Designed and Implemented REST web services using JAX-RS, Spring REST.
• Developed REST API's using Spring MVC and Spring boot , hosted all micro services on PCF .
• Developed REST Web Services clients to consume those Web Services as well other enterprise wide Web Services.
• Consumed Web Services for getting the credit card information from third party application.
• Used XStream API to transfer data back and forth between Spring Cloud, Spring MVC and Ext JS.
• Custom Node.js proxy used to simulate API responses before client implementation was complete, and to proxy requests to finished client APIs, handling authentication, custom headers, virtual application root, etc.
• Involved in the configuration of Spring, Spring Cloud, Micro Services Framework and Hibernate mapping.
• Database development required creation of new tables, PL/SQL stored procedures, functions, views, indexes and constraints, triggers and required SQL tuning to reduce the response time in the application.
• Extensively used Hibernate in data access layer to access and update information in the database.Used Hibernate Transaction Management, Hibernate Batch Transactions, and Cache concepts.
• Extensively worked on Hibernate Cache, Query, Criteria and Transactions in secondary project.
• Worked with high volume and complex PL/SQL stored procedures and packages using TOAD.
• Developed Maven scripts and developed builds using Maven and continuous integration servers like Jenkins.
• Implemented the database connectivity using Oracle 11g database as backend.
• Utilized AWS Lambda platform to upload data into AWS S3 buckets and to trigger other Lambda functions.
• JBoss Application server implementation, support, workload management and performance tuning including Web server setup configuration with JBoss App Server.
• Oversaw all aspects of testing JUnit, FIT, and SIT, End to End, Regression, User acceptance and Performance.
• Used version control repository GIT and JIRA for issue tracking.
• Created and configured new JIRA projects and worked with departments to maintain existing JIRA projects.
• Developed and maintained automated regression test cases in Selenium Web Driver using Java programming.
• Used Git as Version Control System for the application.

Environment: Java, J2EE,JDK 1.7, RCP, WebLogic, AWS SDK, Ext JS, Git, JFC, Perl, Spring 4.x, Spring Boot, PCF, AWS SNS/SQS, Hibernate 4.x,Core Java, SOAP/Rest, Web Services, JavaScript, UML, Web Services, HTML5, CSS, SASS, WSDL, JIRA 5.x/6.x, JAXB, Linux, JAX-WS,JAX RPC, JMS,UNIX, NOSQL(MongoDB), Selenium, Camel, ReactJs, BackboneJS, Scala IDE, Ilog, Drools, TFS, Micro Services, JBoss 3.0, AngularJS, AJAX, Apache JMeter, JQuery, JUnit, Maven, Oracle 10g.

Confidential, McLean, VA

Sr. J2EE Developer

Responsibilities:

• Involved in the design and development phases of Agile Software Development.
• Developed the application using 3 Tier Architecture i.e., Presentation, Business and Data Integration layers in accordance with the customer/client standards.
• The application is designed using J2EE design patterns and technologies based on MVC architecture.
• Automate report generation in MongoDB using JavaScript, shell scripting, java.
• Implemented printable chart report using HTML5, CSS3 and jQuery.
• Applied JavaScript for client-side form validation.
• Developed automated solutions to include web interfaces using HTML, CSS, JavaScript and Web services.
• Written Web Services (JAX-WS) for external system via SOAP/HTTP call.
• Created Managed Beans for handling JSF pages and include logic for processing of the data on the page.
• Worked on UNIX, LINUX to move the project into production environment.
• Created Responsive Layouts for multiple devices and platforms using foundation framework.
• Used FileNet for Content Management and for streamlining Business Processes.
• Hibernate an ORM framework was used on DAO layer to persist application data into Oracle database.
• Developed Hibernate with Spring Integration as the data abstraction to interact with the database.
• Involved in developing SQL queries, stored procedures, and functions.
• Extensively used the Spring framework implemented upon the MVC design pattern.
• Implemented Hibernate for Database Transactions on DB2.
• Involved in the configuration of Spring Framework and Hibernate mapping tool.
• Monitoring WebLogic/JBoss Server health and security.
• Creation of WebLogic domains and setup Admin & Managed servers for JAVA/J2EE applications on Non-Production and Production environments.
• Creation of Connection Pools, Data Sources in WebLogic console.
• Used Log4j framework to log/track application.
• Creating and updating existing build scripts using Ant for deployment Tested and implemented/deployed application on WAS 6.1 server.
• Prepared and presented UNIX production and implementation schedules to the Project Manager and client.
• Installed, maintained and fine-tuned the Apache-Tomcat server and WebSphere Application Server in Linux Platform.
• Experienced in build, deploy multi module applications using Maven, ANT and CI servers like Jenkins.

Environment: FileNet, IBM RAD 6.0, Java 1.5, JSP, Servlets, Spring, Hibernate, JSF, ICE Faces, Hibernate, HTML, CSS, JavaScript, UNIX, Web Services- SOAP, WAS 6.1, XML, IBM WebSphere 6.1, Rational Clear Case, Log 4j, IBM DB2.

Confidential, Irvine, CA

Sr. Java/J2EE Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) of the application like Requirement gathering, Design, Analysis and Code development.
• Designed the UML diagrams based on the OOAD principles.
• Developed the application under J2EE architecture using JSP, Struts, spring, Java Beans, and iBATIS.
• Worked on various use cases in development using Struts and testing the functionalities.
• Used AJAX in user validation and suggestion list and to display dialog boxes.
• Involved in preparing the High Level and Detail level design of the system using J2EE.
• Sever side validations are done using Struts Validator Plug-In.
• Created struts form beans, action classes, JSPs following Struts framework standards.
• Developed Web Interface using Struts, Java Script, HTML and CSS.
• Developed presentation screens by using JSP, HTML and JavaScript.
• Involved in the development of model, library, struts and form classes (MVC).
• Used Spring Framework and created the Dependency injection for the Action classes using ApplicationContext.xml.
• Developed the Business logic on the web tier using EJB Stateless Session beans.
• Worked on MQ with J2EE technologies on the WebSphere MQ.
• Used display tag libraries for decoration and used display table for reports and grid designs.
• Worked on Rest based Web services for Mule ESB flows.
• Worked on core java, using file operations to read system file (downloads) and to present on JSP.
• Developed an API to get the Service Level Validations from SAM.
• Providing fixes to the issues identified in testing phase.
• Developed a RESTful service to provide all the CRUD capabilities.
• Analysed, designed and implemented DAO pattern for accessing Database using connection pool.
• Used PL/SQL stored procedures for applications that needed to execute as part of a scheduling mechanisms.
• Involved in configuration of XML flat file and parsing the XML file using the SAX Parser.
• Worked on different ways to increase performance of the Application through use of methodologies like asynchronous calls to database, stored procedures in place of Dynamic SQL, etc.
• Used Rational Clear Case for version control and JUnit for unit testing.
• Implemented JReportfor annual report generation with charts.
• Provided troubleshooting and error handling support in multiple projects.
• Worked on Reconciliation, which involves in providing root cause analysis and data fixes.
• Configured WebSphere Application server and deployed the web components.
• Used VSS for version control and source code management
• Extensively involved in designing UI, reporting and specification documentation.
• Responsible for the user module, setting rights and permission to users through the keywords set with database and testing.

Environment: JDK1.5, JSP, JSF, Struts, iBATIS, Spring, HTML, JavaScript, AJAX, CSS, XML, EJB, PL/SQL, IBM WebSphere Application server 5, Mule ESB, JUnit, SOA, Web Services(JAX-WS), pVSS, SAX Parser, Oracle 9i.

Confidential

Sr. Java/J2EE Developer

Responsibilities:

• Involved in design and development of all modules in the application.
• Developed and deployed Java REST web services using SpringFramework.
• Converted the mock-ups into hand-written HTML,AJAX, XML and JSON.
• Designed and implemented Spring ORM module to integrate Hibernate.
• Implemented SOA architecture with web services using SOAP, WSDL, UDDI and XML.
• Designed and Implemented User Interface in Model-View-Controller Architecture, which accomplishes a tight and neat co-ordination of Spring MVC, JSP, Servlets.
• Developed web components using MVC pattern under Struts framework.
• Responsible for writing detail design documents and class diagrams and sequence diagrams.
• Developed Custom tag libraries to separate presentation and processing logic.
• Designed and developed a REST Web Services using Jersey framework builds on JAX-RS.
• Prepared Unit test cases for existing functionality as per the requirement and execute the same.
• Used WS-Security for authenticating the SOAP messages along with encryption and decryption.
• Prepared Unit test cases for existing functionality as per the requirement and execute the same.
• Worked on core java, using file operations to read system file (downloads) and to present on JSP.
• Involved in Core Java coding by using Java APIs such as Collections, Multithreading, Exception Handling, Generics, Enumeration, and Java I/O to fulfil the implementation of business logic.
• Developed SQL as well as stored procedures to interact with Sybase and MySQL.
• Business level validations were done using Struts Validator framework.
• Used Cascading Style Sheet (CSS) in web pages to separate presentation from structure.
• Developed Struts Action classes using Struts controller component.
• Designed and developed J2EE application using Servlets, JSP, JavaBeans and EJB.
• Entity Beans used for accessing data from the SQL Server database.
• Used JSF to reduce the effort in creating and maintaining this entire application.
• Involved in the building Maven POM files and Maven testing.
• Involved in writing the associations for the query in mapping xml files in Hibernate.
• Used Java Messaging Services (JMS) for reliable and asynchronous exchange of important information such as payment status report.
• Worked exclusively on MDB, Messaging Queues and Posting Error Messages to the Queue.
• Continuous integration to build the project using Jenkins with Maven Builder.
• Worked on the Spring MVC Restful Web services, exposing services and consuming the third party.
• Developed UML models consisting of Use Case Diagrams, and Sequence Diagrams using Rational Rose software.
• Involved in handling Hibernate as part of DB connectivity and persistence as ORM tool and writing HQL queries.
• Developed the JSP using the tag libraries. Perform validations using struts validation framework.
• CVS was used for project management and version management.
• Designed configuration XML Schema for the application.
• Used JUnit Testing Framework for performing Unit testing.
• Strong experience in implementing the Web Services (WSDL using SOAP protocol, JAXB, JAX-RS, RESTful).
• Involved in system design and development using Collections and Multithreading for the action classes.

Environment: JSP, AJAX, Struts framework, Hibernate Framework, JMS, SOAP, XML, Spring Framework, Log4j, Java Script, HTML, Oracle9i, SQL, PL/SQL, Web Sphere, WSAD, JSTL, Struts tags, Junit, Mockito, SQL, Struts, CSS, Jenkins.

Confidential

Java Developer

Responsibilities:

• Involved in gathering and analysing system requirements.
• Played key role in the high-level design for the implementation of this application.
• Developed the Training and Appraisal modules using Java, JSP, Servlets and JavaScript.
• Developed UI using java swings.
• Created tables, views, Types, triggers, complex join queries, stored procedures, and functions and modifications to existing database structure as required for addition of new features
• Involved in Designing the Database Schema and writing the complex SQL queries.
• Involved in Code reviews for other modules developed by peers.
• Designing and establishing the process and mapping the functional requirement to the workflow process.
• Accessed stored procedures and functions using JDBC Callable statements.
• Executed and coordinated the installation for the project.
• Involved in designing and developed presentation layer using JSF, Ajax, JQuery and third-party libraries.
• Worked on web-based reporting system with HTML, JavaScript and JSP.

Environment: Java, JDK, 1.3, J2EE (JSP, Servlets, EJB), JDBC, Apache Tomcat, oracle, HTML, DHTML, SQL, JUnit.