SUMMARY:

• About 6+ years of experience in analysis, design, development and testing of web/enterprise - based client/server applications & extensive relational database-based applications.
• Experience in designing User Interface (UI) web applications using HTML5, CSS, JavaScript, jQuery, AngularJS, AJAX, JSON, and MVC.
• Extensive experience in design and development of J2EE applications using, Java collections framework, JDBC, Servlets, JSP, Enterprise Java beans, XML, XSLT, JavaBeans, Struts Framework, Spring Framework. Good understanding and knowledge on Java8 features.
• Expertise in various open source frameworks like Struts2.0/1.2, Spring4.0 MVC, Spring Batch, Spring IOC, Spring AOP, Spring Integration, JSF1.2, and ORM Technology like Hibernate 3.0/4.0, Spring JDBC.
• Experience with multiple web and application Servers like Apache Tomcat, IBM Web Sphere, Oracle Web Logic, Glass fish and JBoss.
• Experience working with standard Java Design Patterns (MVC, Singleton, Session Facade, DAO Factory, Business Delegate, Value Object, Front Controller).
• Strong experience in developing the client/server-based applications using Oracle Rational Database Management System.
• Expertise in Client-Server application development using Oracle 12g/11g/10g, SQL PLUS, TOAD, SQL Developer and SQL*LOADER.
• Experience in developing Web Applications using technologies like HTML 5.0, JSP, JavaScript, jQuery, AngularJS, Node JS, Bootstrap JS, CSS, XML, JSON, XSL/XSLT and AJAX.
• Extensive development experience on different IDE's like Eclipse, My Eclipse, NetBeans and RAD.
• Good knowledge of EJB Session beans with JNDI mapped naming & JMS message-driven beans.
• Good knowledge on Micro Services Architecture and benefits of using it.
• Experience in implementing SOA using J2EE Web Services, Axis2, WSDL, SOAP, REST web services.
• Hands on experience in UML Modeling, Rational Rose.
• Extensive experience in implementation of the version control software SVN, CVS, Clear Case, IBM Rational Tools (RTC, RRC), Mercurial.
• Experience in various agile methodologies like Test Driven Development, SCRUM, Waterfall and Pair Programming.
• Experience in developing Unit Test Cases using JUnit tool, Mockito. Involved in Integration testing and User Acceptance testing extensively. Involved in Performance Tuning for the entire application using OEM tool.
• Familiar continuous integration tools like Quick Build, Jenkins, and RTC.
• Good knowledge on Document repositories like EDM, Mobius and IBM FileNet.
• Worked on tools like Siebel, JMT, WINSCP, LOTUS NOTES, and JENKINS.
• Experience in working with FINANCIAL, STATE GOVERNMENT (HEALTH /WEALTH) domains.
• Team Player, quick learner and self-starter with effective communication, motivation and organizational skills combined with attention to details and business process improvements.
• Proven ability to analyze problems, root causes and develop innovative solutions to business challenges and streamlining operations.
• Good experience in Designing, Planning, Administering, Installation, Configuring, Troubleshooting, Performance monitoring of Cassandra Cluster.

TECHNICAL SKILLS:

• HTML5/4
• CSS3
• XML
• Angular 2/4/5/6
• Node.js
• Ext.js
• Backbone.js
• Bootstrap
• React.js
• Redux
• Oracle
• JBoss
• JDBC
• JSF
• Servlet
• DHTML
• NetBeans
• Eclipse
• PL/SQL
• Scala
• PHP
• C++
• JavaScript jQuery
• JSP servlets
• JSTL
• Struts
• JDBC
• JSF
• EJB
• RMI
• JTA
• WSDL
• JMS
• JCA
• CVS,
• SVN
• GIT
• GitHub
• Design Patterns
• Struts
• Hibernate spring spring boot
• Spring security spring cloud
• Jenkins
• Maven chef puppet
• XML
• XSD
• XSLT
• DTD
• DOM
• SAX parser
• XQuery
• Apache Tomcat
• Jobs
• WebSphere
• JBuilder
• Ant,
• Junit
• Log4j
• Selenium angular
• Bugzilla
• JIRA
• MongoDB
• Cassandra
• MySQL
• Sun Solaris
• Red Hat LINUX
• AWS
• Hadoop HIVE
• PIG
• OOZIE
• SPARK
• MapReduce
• Sqoop
• REST
• SOAP
• DOJO
• JSON
• Shell scripting
• Dreamweaver
• Docker
• Drupal
• Rabbit MQ
• Kafka
• Java 8

PROFESSIONAL EXPERIENCE:

Sr Java Developer

Confidential, San Francisco, CA

Responsibilities:

• Worked on Java 8 and its latest functions like, for each () method in Iterable interface, default and static methods in Interfaces, functional Interfaces and lambda expressions, java stream API for Bulk Data Operations on Collections, Java Time API, collection API improvements, concurrency API improvements, java IO improvements, miscellaneous Core API improvements
• Involved in the complete SDLC including the design of System Architecture, development of System Use Cases based on the functional requirements.
• Doing Daily Scrum (Agile) meetings, Sprint planning and estimation of the tasks for the user stories, participated in retrospective and presenting Demo at end of the sprint.
• Used JSP, HTML5, CSS3, and JavaScript to construct the dynamic web pages (presentation Layer) for the application.
• Worked with core Java technologies like Multi-Threading and synchronization.
• Multithreading was used to process data in chunks to improve performance.
• Handed Java Multi-Threading part in back-end component, one thread will be running for each user.
• Developed internal coding using JEE technologies based on the MVC Architecture.
• Implemented Business Logic using Java, Spring MVC, and Hibernate.
• Achieved Dependency injection by creating Spring services, Spring controllers and DAOs to wire objects of business classes.
• Implemented DAO pattern to fetch data from database using Hibernate to carry out various database operations and avoid redundant database access statements.
• Designed and developed business components using Spring Boot, Spring Dependency Injection (Core), Spring AOP and Spring Annotations.
• Developed reports include Invoice Printings and Patient profiles. Assigned as lead developer throughout the design, analysis and coding phase of a Claims Processing System.
• Worked on latest tools Eclipse, IntelliJ, RAD, Toad, Elastic search, Wiley, JProfiler.
• Utilized existing AWS services, Cloud Formation to Elastic Compute Cloud (EC2) to DynamoDB table, to implement new features and functionality.
• Created AWS Security Groups for deploying and configuring AWS EC2 instances.
• Experience in AWS Identity and Access Management (IAM) such as creating users, groups, organizing IAM users to groups, assigning roles to groups.
• Experienced in migrating applications to AWS and application deployment in the cloud (AWS) with CI/CD tools like Jenkins, Chef.
• Diverse experience utilizing tools in Microservices architecture applications using Spring Boot, Spring Cloud config, Pivotal Cloud Fundry, AWS, Rabbit MQ, My SQL, Restful Web Services.
• Experience on various AWS services like S3, EC2, ECS, Cloud trail, VPC, RDS, Route 53, SNS, and Lambda.
• Developed the AWS Infrastructure using VPC, EC2, S3, Route 53, EBS, Security Group, Auto Scaling, and RDS in Cloud Formation.
• Configured S3 to host static web content, Elastic Load Balancers with EC2Autoscaling groups and deployed Cloud Stack using AWS OpsWorks.
• Developed single page web application using JavaScript framework Angular and Created multi custom directives by defining Angular 5 directives
• Experience with Angular 5 in creating custom directives, decorators, and services to interface with both restful and legacy network services also DOM applications.
• Implemented Angular 5 Controllers to maintain each view data and Implemented Angular Service calls using Angular Factory.
• Modified the existing architecture to cell-base architecture to increase scalability and reduce blast radius of the entire service.
• Implement new features and functionality to accept and processing APIs.
• Assisted and provided guidance for customers and team to utilize API Gateway.
• Developed (full service APIs), delivered and deployed Multi-Stage P2P Grid-GPU (Credit Card) Streaming Point-of-Transaction Edge-Cloud Microservices (Google gRPC, CoreOS rkt, Google Kubernetes) producing at scale 150K credit card TPS (transactions per-second) per closest Edge Cloud Microservice resulting in increased transaction rate per-second 50% using Java 8 (RxJava, Akka Actors, Google gRPC) and Go (RxGo, Google gRPC), Apache Kafka Pub/Sub as Transaction Event Sourcing, Apache Kafka KQL Streaming SQL, Google TensorFlow Transformations using pre-developed Supervised and Semi-Supervised Classification algorithm and Deep Reinforcement Learning algorithm training data sets and Google TensorFlow Serving to service the algorithms the trained data sets on the stream on-demand, 10K Node Apache Cassandra NoSQL Cluster used as high-rate transaction exchange event storage and Cockroach DB (SQL) Serve.
• Used Hibernate Transaction Management, Spring/Hibernate Batch Transactions and Hibernate cache concepts. Implemented React JS code to handle cross browser compatibility issues in Mozella, IE 7, 8, 9, Safari.
• Used a Microservices architecture, with Spring Boot-based services interacting through a combination of REST and Spring Boot.
• Used Microservices are designed with the individual database and project with no dependencies.
• Used Spring Data Framework to use the features of Spring JDBC and Spring ORM classes like JDBC Template and Hibernate Template to perform the database operations by connecting to Data sources available.
• Removed all the XML based configurations required to build the MVC application and maintained in the classes using Spring Boot.
• Developed user interface as JSF, prime faces, HTML and CSS and Bootstrap with custom tag libraries using JSF Framework.
• Used Microservices to communicate using synchronous protocols HTTP and REST.
• Implementing or exposing the Microservices based on RESTful API utilizing Spring Boot with Spring MVC.
• Developed and used REST web services for the reporting framework.
• Focused on Test Driven Development thereby creating detailed JUnit tests for every single piece of functionality before writing the functionality.
• Software Professional with good knowledge on SDLC. Participated in gathering business requirement, Analysis & Design discussion, have good command on development, unit testing, deployment and production support.
• Experience in Developing business domain applications, with good knowledge on Java, JSE, JEE technologies like Servlets, JSP, JSTL, JMS, JDBC, JPA, JAXB, JAX-RPC, JAX-WS, JAAS, JNDI, and maintained managed and deployed these applications on JEE containers like WebSphere, WebLogic.
• Developed Error mail code in Scala, which triggers mail to specified group when error occurs in processing the json file.
• Good working experience and sound knowledge in various open source frameworks like SPRING, HIBERNATE.
• Worked extensively with React JS and developed real time applications using React JS architecture- Redux for building UI and designed reusable components using React JS
• Worked on integration of Cassandra with Hadoop. Created Front end UI for Service Reporting System using Drupal.
• Extensive experience with Microservices architecture using Spring Boot and Rest APIs.
• Extensive experience with Spring Boot, Spring Cloud Config, Spring Cloud Bus, Spring Could Netflix (Eureka, Feign, Ribbon, Hystrix), Spring Cloud Slueth, Zipkin, Spring MVC, Spring Data, JPA and Hibernate.

Java Developer

Confidential, San Ramon, CA

Responsibilities:

• Used technologies like Java7, J2EE, Hibernate, JPA, Spring, Spring Security, Spring Boot, REST based web services, Maven, Angular JS, TDD, Oracle 12c, Kafka
• Responsible for gathering system requirements, feasibility study, system analysis, design and development for the new module.
• Developed the Drag and Drop functionality using React- Drag gable.
• Used React -Auto complete for creating Google maps location search on the webpage.
• Maintained states in the stores and dispatched the actions using redux.
• Component for UX-Library consisted of Button, Checkbox, Input, Icons, Toggle Button, Dropdown, Multi-Level Dropdown and many more.
• Used JSP to design the user interfaces and JSP tag libraries to define Custom Tags.
• Applied HTTP Service and REST web service to connect the Front-end ReactJS to Back-end NodeJS.
• Design and develop java restful services that communicates with the postgres database on the backend and returns json format data using Spring, Jersey restful, JAX-RS, Hibernate.
• Consumed restful web services and soap web services from different applications within the network.
• Maintain Git branches during project development. Conduct merge and using maven to build and deploying the services to jetty server.
• Diverse experience utilizing tools in Microservices architecture applications using Spring Boot, Spring Cloud config, Pivotal Cloud Fundry, AWS, Rabbit MQ, xml, Restful Web Services.
• Experience on various AWS services like S3, EC2, ECS, Cloud trail, VPC, RDS, Route 53, SNS, and Lambda.
• Developed the AWS Infrastructure using VPC, EC2, S3, Route 53, EBS, Security Group, Auto Scaling, and RDS in Cloud Formation.
• Configured S3 to host static web content, Elastic Load Balancers with EC2Autoscaling groups and deployed Cloud Stack using AWS OpsWorks.
• Using the agile scrum methodology with a 2- week sprints to complete the tasks efficiently.
• Worked on Eclipse for developing interface modules and web application using Spring MVC.
• Created the Node JS Express server to build MVC framework from front end side AngularJS to back- end database, to provide broadcast and chatting service
• Migrated the applications from Spring namespace 3.x to Spring boot 1.5.7.
• Used JUnit framework for unit testing of application and Log4j 1.2 to capture the log that includes runtime exceptions.
• Used Quick build and Jenkins for the CI/CD of different applications.
• Used VersionOne to track the issues and defects.
• Experience in Big Data technologies (Hive, Scala programming & Cassandra DB).
• Responsible for closing the backlog of production related issues.
• Involved in wrap-up meetings and in estimating the timeframe for each story and deployed the applications and services on server for each iteration of the agile software development.
• Involved in JDK1.7, Eclipse, JDBC, Spring 3.x, Spring Boot, SOAP, REST, Hibernate, GitHub, Jenkins, JUnit, VersionOne, Jetty.
• Used checkmark, NIQS scan, Dynamic scans for finding the critical vulnerabilities in our services and applications.
• Used SonarQube and Hygiea tools for quality analysis of the code.
• Environment: JDK1.7, STS, JDBC, Spring 3.x, Spring Boot, JavaScript, CSS, Gitlab, Tortoise SVN Jenkins, JUnit, UNIX, RabbitMQ, HPSM, VersionOne, WSSR, WebSphere 8.5.
• Design User Interface (UI) web applications using html5, CSS, JavaScript, jQuery, AngularJS, ajax, json.
• Used SVN and GitLab to manage the versioning, merging the code and migrated the code from SVN to GIT.
• Used Jenkins for the CI/CD of different applications and wrote Jenkins groovy script for automation of build jobs.
• Experience in Drupal Themes developing Drupal custom modules, resolving Drupal configuration issues.
• Create desktop application with Angular 2/4 and Unit Test with Karma-Jasmine, have good knowledge of Spring Batch.
• Created api server using Node.js modules so our application could communicate with the database.
• Worked on tools like Eclipse, IntelliJ, RAD, Toad, Elastic search, Wiley, JProfiler, Google Analytics

Java Developer

Confidential, New York City, NY

Responsibilities:

• Developed application on Spring 4.x framework by utilizing its features like Spring
• Dependency injection, Spring Beans, Spring JDBC, Spring Web flow using Spring MVC.
• Worked on Spring MVC application with XML configurations and annotations. Used Dispatcher servlet to route incoming requests, controllers to handle requests and Model to send values to user interface.
• Used Agile principles to implement the projects using two - week sprints, planning meeting daily standups, grooming, estimation and retrospectives.
• Developed a portal application from scratch to interact with third party application token exchange model for authentication, get the data needed and Spring MVC to handle incoming requests and RESTful web services (Implementing JAX-RS API) with Jackson parser to send data on Web Service Calls in JSON format.
• Participated in Scrum meetings and project planning and coordinated the status sessions
• Developed the presentation layer by using Servlet, HTML 5, CSS 3, JavaScript, JSP's, JSON and XML.
• Developed Data Access Layer using Hibernate ORM framework.
• Used Hibernate named queries concept to retrieve data from the database and integrate with Spring MVC to interact with backend persistence system (Oracle11g).
• Extensively involved in creating complex SQL queries and calling Stored Procedures.
• Maintain high-quality of RESTful services and implemented REST Services using Spring MVC and JAX-RS.
• Used Maven to build and deploy application onto JBOSS Application Server to deploy code onto server.
• Developed simple to complex Map Reduce jobs using Hive and Pig for analyzing the data.
• Developed Pig UDF's to know the customer behavior and Pig Latin scripts for processing the data in Hadoop.
• Installed Oozie workflow engine to run multiple Hive and Pig jobs
• Scheduled automated tasks with Oozie for loading data into HDFS through Sqoop and pre-processing the data with Pig and Hive.
• Copied the data from HDFS to MongoDB using pig/Hive/Map reduce scripts and visualized the streaming processed data in Tableau dashboard.
• Used JIRA tracking tool to manage and track the issues reported by QA and prioritize and act based on the severity.
• Used GitHub extensively as versioning tool and used Maven for automated building of projects.
• Involved in the analysis of finding out the performance issues of DAO classes.
• Extensively used the LOG4j to log regular Debug and Exception statements and involved in design, analysis and architectural meetings.
• Implemented Unit Testing using JUnit and involved in Integration Testing with Database Layer.
• Used Java 1.7, Hibernate, Spring MVC, JDBC, JSP, Html5, CSS3, jQuery, JavaScript, Maven, JBOSS, Junit, Web Logic, Eclipse, Oracle 10g/11g, GIT, Apache Tomcat, Garbage Collection, Web services, REST, Windows 8.1, SVN, Eclipse, JIRA.

Java Developer

Confidential

Responsibilities:

• Worked on Java, J2EE, Hibernate, XML, WPS6.0, WAS 7.0, SOAP Web Services, FileNet, Daeja Applet Viewer, XSLT, JMS, Active MQ, Ext JS.
• Involved in SDLC Requirements gathering, Analysis, Design, Development, and Testing of application developed using AGILE methodology.
• Developed the application using Spring Framework that leverages classical Model View Layer (MVC) architecture.
• Worked in the different parts of the MVC pattern like Dispatcher Servlet, Handler Mapping, Controllers, Model, and Views.
• Used spring core for Business Layer.
• Used Hibernate in conjunction with Spring functionality to implement Object - relation mapping in the persistence layer.
• Created and consumed Webservices using REST and SOAP.
• Created webpages using HTML5, CSS3, JavaScript.
• Asynchronous calls and preloading the data are made using AJAX
• Worked on Complex SQL queries and created stored procedures for different business functionalities.
• Used SONAR tool to maintain code quality compliance.
• Performed Unit testing for various modules using J units.
• Used SPLUNK to get the Debug logs.
• Used Java, Spring MVC, Hibernate, jQuery, JavaScript, HTML, CSS, AJAX, REST, SOAP, SPLUNK, Maven, Oracle, and WebLogic.
• Done the designing, developing, troubleshooting and debugging software within a project scope ensuring that work product meets end user acceptance criteria.
• Experienced in developing web services (Soap, Restful) that include several components like SOAP, WSDL, XML, XSD, Axis2, JAXB, JAX-RS and JAX-WS, Apache CXF.
• Well experienced with Core Java concepts like Collections, Multithreading, Serialization, and Exception Handling.
• Experience in database design, data modeling and developing stored procedures, functions and triggers.
• Good work experience on RDBMS like Oracle and MySQL. Creating SQL statements & Sub queries.
• Experience in using XML based technologies and parsers DOM, SAX, JAXP, and JAXB.
• Experienced in implementing presentation layer using JSP, HTML, CSS, JavaScript, JSON and Servlets.
• Expertise in implementation of MVC using frameworks such as spring and Struts.
• Experience in deployment of J2EE applications on JBoss, Tomcat, IBM Web Sphere and WebLogic Application Servers.
• Experience of Object-Oriented Analysis Design using UML.
• Good experience with SCRUM, Agile methodologies using TDD approach.
• Experience implementing SOA, Web Service applications.
• Managed self-directed assignments to resolve software defects or implement features to meet schedule commitments with a high-level of quality.
• Performed architecture and design of large software components under the supervision of a software architect.
• Done the estimating and scoping development tasks and making recommendations for innovations and improvements relating to software component designs, including reviewing the work of team members completing elements of designs.
• Accepted test driven development (atdd) approach to ensure software quality.
• Acquiring knowledge of industry and company standards, tools and technology with a focus on pragmatic application to business-focused software solutions through initiative and self-study.