SUMMARY:

• Senior full Stack Java Developer with overall 8+ years of professional experience in SDLC (Software Development Life Cycle) with Strong Object - Oriented Analysis, Designing & Development of Enterprise Web applications using Java/J2EE.
• Expertise in using different Software Development Methodologies like Agile, Scrum, Waterfall and TDD.
• Strong Techno-Functional exposure in the development of Client-Server and Distributed Multi - Tier Web applications.
• Expert inConfiguration Setup, Customization, Code-Review, Trouble-Shooting and Production Support.
• Proficient in applying design patterns like MVC, Singleton, Session Facade, Observer, Visitorand Data Access Object.
• Proficient in UI Development with HTML5, CSS3,JSP, JavaScript, Angular JS, Angular, React JS, Vue.JS and Node.JS.
• Implemented Core Java concepts such as AWT, Strings, Struts,JNDI, JDBC, Generics, EJB, Multi-Threading, Data Structures, Swing, JSF, JSTL, Streaming API, Collection Interface and Map Interfaceetc.
• DevelopedEnterprise applications using Python, Scala and Java, JSP, Servlets, Hibernate/JPA, Spring Boot,MVC, IOC, AOP, ORM, Security, Zuul, SOAP, RESTand Micro Servicesusing IDE’S like Eclipse, RAD and IntelliJ IDEA.
• Experience in developing RESTful Micro Services as Spring Boot application compatible with Pivotal Cloud Foundry .
• Strong understanding of Micro services patterns - Circuit Breaker/Hystrix, DDD, Aggregator, Proxy Chaining.
• Good Knowledge on Java 8 new features like Lambda Expressions, Stream API, Functional Interfaces and Filters.
• Implemented Micro Services using Spring Boot,Netflix Eureka, Kafka, Zookeeper, Camel,Spring Data and REST API.
• Experience inworkingwith RDBMSsuch as Oracle, SQL Server, DB2, PostgreSQL, PL/SQL, Sybase and MySQL.
• Implemented migrations from SQL to NoSQL databases such asMongoDB, Cassandra, Dynamo DB and Couch DB.
• Goodexperience on CI/CD using Ansible, ANT and Jenkins on WebSphere, WebLogic, JBoss, Jetty and Tomcat.
• Proficient in deployment using Docker, Kubernetes and configuration management with Chef, Ansible andPuppet.
• Build and Deployed applications using Apache framework tools such asMaven, ANT, Gradle and Hudson.
• Expertise in Testing with JUnit Framework using Mockito, Easy Mock, Spring Junit Runner and JMeter.
• Used testing environments like Junit, Selenium, CURL and Jenkins and used logging tools such as Log4j and Splunk.
• Experience in Designing and Implementing AWS Solutions using EC2, Lambda, IAM, VPC, RDS, S3, Route53, EBS, ELB, AWS SDK, Athena, CLI, Elastic Beanstalk, Elastic cache, Security, Code Deploy, API Gateway and Cloud Formation.
• Good experience withbuilding Stream-ProcessingSystems, Hadoop Map Reduce, Scala, Python, Cassandra, HBase, and Spark, Spark Batch Streaming and Spark SQL queries for processing very large amounts of data.

TECHNICAL PROFICIENCY:

Programming Languages: C, Java 1.8, J2EE, Scala and Python.

Web Technologies: HTML 5, CSS 3, JSP, Bootstrap, JavaScript, XML, XSD, XSL, SAX, DOM, jQuery, JSON, AJAX, DOJO, Angular JS, Angular 2, Vue JS, React JS, Backbone JS and Node JS.

Relational Databases: Oracle 10g/11g/12C, SQL Server 2014/2016, MySQL 5.7, PostgreSQL and DB2.

NoSQL Databases: MongoDB, Cassandra, Dynamo DB and Couch DB.

Frameworks: Spring, Spring Boot, Hibernate ORM, Bootstrap, iBatis and Flex.

Application/Web servers: Apache Tomcat 8, IBM WebSphere, Jetty, Jenkins, Web Logic, Node JS and JBoss.

Cloud Environments: AWS, Cloudera, Hortonworks, Netflix Eureka, Camel, and Kubernetes.

IDE: Eclipse, NetBeans, IntelliJ, WebStorm, PyCharm and Spring Tool Suite (STS).

Testing Tools: JUNIT4, JIRA, Rational Clear Quest, Jasmine, Karma, Bugzilla, Curl and Confluence.

Reporting Tools: Jasper Reports, Crystal Reports and SSRS.

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

Developer IDE Platforms: Eclipse, Edit Plus, Notepad++, J-Builder, NetBeans, IntelliJ & Spring Tool Suite.

Build &Deployment Tools: Ant, Maven, Gradle, Hudson, Clear Case and Jenkins.

Version Control Systems: SVN, Git, GitHub, Source tree and Bitbucket.

Web Services: SOAP, WSDL, REST, JAX-WS, JAX-RPC and JAX-RS.

Operating Systems: Windows, Mac, Linux and Unix.

PROFESSIONAL EXPERIENCE:

Confidential, Des Moines IA

Senior Java/J2EE Developer

Responsibilities:

• Participated and Identified Dependencies across cross-functional teams and Provided valuable suggestions for the best planning of PI (Program Increment) Planning accounted for a period of five weeks.
• Followed Agile Methodology - Daily Standups, Grooming, Estimation and Retrospectives in the project.
• Developed user interactive web pages using HTML5,CSS3 , JSP , Ajax, JavaScript , Angular2, and Dust.js .
• Worked with Angular2 to generate various components, routes, services, pipes and structured the application code.
• Used Java8 features in developing the code like Lambda Expressions, Functional Interface, Filter andStream API.
• Used Executor Service and Thread Pool Executor for Multi-Threading and thread resource pooling.
• Implemented Java2EE components usingSpring Boot, MVC,IOC, Transactions and Security modules.
• Configured beans using Spring IOC for dependency injection and back-end logic functionality with Spring AOP concept.
• Configured Spring MVC for the data transfer between front-end and mid-tier to handle request from the client.
• DevelopedJAX-RSannotation basedRESTful web services to validate and map user requests to pass input parameters.
• Implemented Web Service client for the login authentication, credit reports and applicant information using JAX-RS.
• Implemented annotation basedSwagger API and auto-generated documentation for all REST calls.
• Implemented Microservices using Spring Boot to enabled discovery using Netflix Eureka Server.
• UsedMongoDB scripts to insert and update database using aspects like replica sets, shading and document design.
• Implemented a distributed messaging queue to integrate with MongoDB using Kafka and Zookeeper.
• Created a pipeline from Mongo DB cluster by configuring Mongoose Connector, to sync with Elastic Search.
• Enhanced customer search experience anddeveloped Elastic search to extract, transform and index the source data.
• Used Git as Version Control System and Bitbucket for maintaining and to store and retrieve the Source Code.
• Used Nexus repository for maintaining jars and dependencies and Created CI/CD builds using Jenkins.
• Adhere to corporate guidelines and resolved hot fix in Sonar Cube and HP Fortify to achieve planned scope of work.
• Supported legacy XSLT applications using Web services for transmission of large blocks of XML data over HTTP.
• Implemented real-time data pipeline as part of enterprise messaging pattern using Kafka and Spark Streaming.
• Working with Amazon Web Services (AWS) like S3, EBS, EBS, Cloud Formation, Auto Scalingand Route53.
• Configured AWS IAM roles and Security groups and createdEC2 instances for development, test and production.
• Created Clusters via Kubernetes, worked on services, deployments, labels, health checks by writing YAML files.
• Worked on creating the Docker containers and Docker consoles for managing the application lifecycle.
• Used Maven build tool to build and deployed application on WebSphere application server using Jenkins.
• Performed Unit testing on Angular applications using Karma, Jasmine and Selenium WebDriver automation testing.
• Initialized the project and setup the application by coordinating with DEVOP’S, FEDEV and System Integration Teams.
• Designing, Development, JUnit testing and Integration of many components of the applications from end-to-end.
• Adhered to best coding standards and run Test Suite to achieve 100% code coverage in testing by using ECLEMMA .
• Used Log4j to log the information and Jira for defect and bug tracking and Confluence for long-term documentation.

Environment: Java 1.8, Git, Spring 4.x, jQuery, HTML5, CSS3, JIRA, Confluence, Bitbucket, Angular 2, Spring Boot, Micro-services, React JS, JUnit, Cloudera, Athena, Lambda, EC2, S3, Jenkins, Agile(Scrum), AJAX, Docker, Maven, REST Services, JUnit, Mockito, Power Mockito, Jenkins, Agile(Scrum), WebSphere, Sonar Cube, HP fortify, ECL EMMA, Source Tree, Swaggered UI and Maven.

Confidential, Bellevue, WA

Senior Java UI/J2EE Developer

Responsibilities:

• Used AgileMethodology - Scrum Meetings, Daily Standups, Grooming, Estimation and Retrospectives in the project.
• Developed the ApplicationUser Interface using HTML5, CSS3, jQuery, Angular Components and React JS.
• Developed Responsive Web Applications by integrating with Bootstrap , Angular, jQuery, Ajax and Media Queries.
• Implemented data dependency injection and other dependencies generated using Angular-CLI written in TypeScript.
• Custom AngularProxy used to simulate API responses and proxy requests to Client APIs , Custom Headers etc.
• Used React-Router for Deep Linking, Handling Dynamic URL Parameters and Navigation across the Application.
• Developed Client-Side Interface using React JS Components, Events, Keys, Router, Animations and Flux Concept.
• Implemented Java 8 new features like Lambda Expressions, Enhanced For-Loop, Filter and Functional Interfaces.
• Used Spring Boot,AOP, JTA and Security to develop application with Distributed Transaction Management System.
• Developed the Spring Boot application using Annotation Driven Approach and has set up the Spring Bean Profiling.
• Used Spring Boot for developing Cloud Microservices along with PCF, Distributed Cache and File Manipulation.
• Deployed Spring BootMicro Services into Cloud/Docker Hub using Open Shift Environment (OSE) as Docker Images .
• Published and consumed stream of records using Producer and Consumer API’S with Spring Boot using Apache Kafka.
• Used Sqoop to import data from Oracle to HDFS and Virtualization of data sources using Spark to connect to Oracle.
• Implemented Web Service (REST API) to read the tags from Dynamo DB and tags maps to the files in AWS S3.
• Implemented CICD to create pipeline and integrated Docker Container to deploy Spring Boot app into AWS EC2
• Developed AWS Cloud FormationTemplatesand stacks launched by enabling Auto ScalinginAWS EC2 Instances.
• Involved in the Automated Provisioning of AWS CloudEnvironment usingCode Deploy andChef for deployments.
• Developed APIusing AWS Lambda to read mismatched records, manage the servers and code run in the AWS.
• Developed business Rules using JBoss Drools Engine, workflows and provided Drools Dashboard for Business users.
• Experience in working on Python using PyCharm , Shell Scripting and Python fabric for AWS instance provisioning.
• Used Spark Python API(PySpark) to write Spark programs to analyze and process real-time data and place on HDFS.
• Executed complex queries using Scala/Spark for reading multiple XML files from S3 and write into toAWSS3 buckets.
• Build Kafka/RabbitMQ in AWS and implemented Producer Web services to process the messages to/from Queue.
• Executed Spark SQL queries to Extract and Transform the source data and load the data into Redshift.
• Used Maven build tool for building EAR, WAR and JAR files for deployment and continuous integration with Jenkins .
• Developed Unit and Integration tests for existing microservices by using Mockito and Docke r environments.
• Implemented POM based automation testing framework utilizing Java , Selenium RC, Selenium WebDriverandJUnit.
• Used GitHub as Version Control System for maintaining source code and to store and retrieve the Source Code.

Environment: Java 1.8, AWS SDK, Git, Spring 4.x, Python, REST, jQuery, Chef, HTML5, CSS3, JIRA, Confluence, Dynamo DB, Angular2, Spring Boot, Micro-services, React JS, JUnit, Cloudera, Athena, Lambda, EC2, S3, Jenkins, Agile(Scrum), Spark, Scala, Kafka, Eureka, AJAX, Docker and Maven.

Confidential, Cleveland OH

Senior Java Full Stack Developer

Responsibilities:

• Followed Agile methodology and implemented Sprint Planning, Daily Standups, Showcases and Retrospective.
• Actively involved in Allocation of Tasks, Tracking of Project Progression and Cost-Benefit Estimation.
• Worked on interactive web pages with Responsive Web Design (RWD) using Bootstrap, jQuery, HTML5 and CSS3.
• Developed UI using Angular JS framework to bind HTML template (views) to JavaScript object (models).
• Developed Angular JS Controllers , Services, Filters and developed HTML templates with various Angular JS directives.
• Used Angular JS UI router for various views and sub views using Bootstrap components such as Masks, Sliders, Alerts.
• Worked on Spring Core, Spring ORM, Spring AOP and Spring Security in developing the application components.
• Implemented Service Oriented Architecture to develop Spring RESTful/Micro Services with Netflix Eurekaas a part of Services Discovery using Apache Axis and Spring Ribbon for load balancing.
• Implemented Thread safe blocks to makevalid transactions by Multithread- asynchronous functionality & efficiency.
• Used Hibernate Query Language, Expression, Query and Criteriaby implementation of Hibernate Template.
• Extensively used Hibernate Mappings, Config Files, EH Cache, Lazy Loading Transactions and Locking’s.
• Implemented high-quality RESTful Web Services using Spring Data, Jersey, JAX-RS to serve the UI with required JSON.
• Implemented RESTful web services using OAuth 2.0 with Spring Security to authenticate the third-party requests.
• Created RESTful based web services by establishing links using HATEOAS from Spring based application.
• Implemented REST Web services and Node JS Server in the back-end to handle front-end jQuery, Ajax request calls.
• Used DroolsEngine for validating business rules andJAXB parser for marshalling and Un-marshalling XML data.
• Used Oracle 11g/12c and performed complex queries using Joinsand perform CRUD operations.
• Experience in Normalization, Performance Tuning and U pload files using CLOB and BLOB with Oracle DB.
• Used PL/SQL for views, indexes and stored procedures in Oracle Database using TOAD and Query optimization.
• Implemented Service Layer on the top of Cassandra using Core Java, Data Stax API and RESTful API.
• Developed DAO layer using Cassandra for retrieving data present in Cassandra Cluster by running queries in CQL .
• Integration of data in several applications in favor ofJSON documents with Dynamic Schemas using Mongo DB.
• Used Mongo DB Hierarchy Modelling Techniques like Tree Aggregation, Adjacency Lists and Materialized paths.
• Experience in using Mongo DB data models,Collections, document, key-value, wide column and graph model.
• Used SOAP UI, Postman, REST Client, Spring Mock MVCand Spring 4Junit for testing the web services.
• Used AWSLambda to run applications in AWS EC2 instances and configured Dev and QA environment.
• Used Spring Tool Suite and Maven to build and deploy application with AWS Lambda, EC2 and Co de Deploy.
• Used automated Ant build scripts to package and compile the application and used Log4j for runtime Logging.
• Developed Protractor test classes for end to end testing using Jasmine, Karma, Bower and Grunt for testing.
• Used GIT for maintaining Source Code, Code Review, Version Control and GIT Bash for GIT interactions.

Environment: Java/J2EE, Spring Tool Suite, Spring, Spring Boot, Hibernate, Mongo DB, RESTful Web Service, Oracle, HTML5, CSS3, jQuery, Angular JS, Node JS, JavaScript, GIT, JMS, JIRA tool, Log4j, Maven and AWS.

Confidential, Medford MA

Full Stack Java Developer

Responsibilities:

• Worked closely with Product Owner and Business Analyststo analyzeBusiness and User Requirements.
• Deigned solutions using J2EE Design Patterns, Code Reviewand ProductivitythroughAgile Estimation&Planning.
• Developed UI pages using HTML, XUL, DHTML, XSL/XSLT, XHTML, DOM, JSON, jQuery, Ajax and Spring MVC.
• Used Spring Framework for Dependency Injection and Maven as the build tool and deployment using Jenkins.
• Implemented Spring Security for implementing the Authentication, Authorization, and Access-Control features.
• Used UNIX Shell scripting for generating the reports and developed the components on Spring MVC Framework.
• Implemented Hibernate persistence layer using the POJOs to represent the persistence database tuples.
• Implemented JMS service for the asynchronous exchange of critical data and events among J2EE components.
• Implemented JMS Point-to-Point method for event processing &Publisher-Subscriber method for data loading.
• Worked with Middleware using Message driven by POJO (MDP) after creating QCF, Queue on WebSphere Server.
• Developed services that are reusable and interoperable based on SOAP, WSDL, JAXWS, JAXRPC Web services.
• Developed SOAP/ JAX-WS web services using spring framework and used SOAP UI for testing these services
• Developed Restful Web Services using JAX-RS and JSON documentation using Swagger API annotations.
• Used REST Client and POSTMAN to test REST based services and used Junit , Mockito to test Middleware services.
• Created tables and worked on MySQL and PL/SQL by writing complex SQL queries to develop Stored Procedures, Functions, Views, Complex Joinsand Packages for complex Insertion and updating of data to/from the database.
• Used Scala and Play FrameworkandCreatedbatch jobs in Scala to produce meaningful results and reports.
• Build a Data Monitoring framework to ingest application, data metrics into Kafka topic and time series Influx DB.
• Developed test cases and performed unit testing usingKARMA, Jasmine and JUNIT Testing frameworks.
• Used Version Control RepositorySVN for Source Code and Version Control and JIRA tool for issue and bug tracking.
• UsedGrunt for Build Process and Splunk for logging and analyzing defects.
• Developed the ANT scripts for preparing WAR files and used Jenkinsto deploy J2EE components manually.

Environment: Java, J2EE, Spring, HTML, CSS, SOAP UI, KARMA, Jasmine, Nexus, jQuery, Unix, AJAX, Kafka, JMS, XML, ANT, Scala, Play Framework,WebSphere Server 7.0, Hibernate 4.x, Perl, Swing, SVN, JUNIT, Jenkins, Splunkand MySQL.

Confidential, Urbandale IA

Senior Java Developer

Responsibilities:

• Implemented the Service Oriented Architecture (SOA) to develop the Java/J2EE based enterprise web applications.
• Developed HTML views with HTML5, CSS3/Sass, Backbone JS and Bootstrap for responsive web pages.
• UsedBackbone JSandIntegrated the Java code (API) in JSP pages and responsible for setting up Backbone JS framework forenhanced UI development.
• Developed Client-Side Codein Backbone JS and jQuery for connecting the API's to communicate to the server.
• Used SpringIOCand injected Spring Services, Controllers to achieve Dependency Injection and wire objects.
• Used Spring AOP for cross cutting concerns like Logging, Security and Transaction Management.
• Developed entire UI using various Ext JS components like Form Panels, Tab panels, View Port and Editable grids.
• Integrate the Ext JS framework with Oracle BPMand Developed screens using JSP, JavaScript, AJAX and Ext JS.
• Implemented Spring Inheritance to develop beans from already developed parent beans for improved productivity.
• Implemented Multithreading, parallel-programming and improve Clusters efficiency & decrease response times.
• Involved in writing ThreadSafeblocks for achievingMultithreading access to make valid business transactions.
• Utilized DAO Pattern for fetching data from database using Hibernateto carry out database specific operations and avoided redundant access statements to achieve decoupling and flexibility through Transaction Management.
• Optimized cleaning up of session level Data Structure's shared across different open tabs, when data is flushed/committed from one of the tabs. Implemented Mark and Sweep Algorithm to clean up tab level data.
• Analyze, Debug and fix issues related to thread locking, clustering, network connections and Swing client performance on customer's production environment and Interactive GUIs using Java Applets and Swing/JCF.
• Implemented SOAP based Web Services SOAP/HTTP, JMS and SMTP using SOA technologies such as SOAP, WSDL.
• Implemented System Security with SSH(Secure Socket Layer) encryption and used role-based security.
• Wrote Karma, Jasmine unit, Spec flow C integration, and Protractor Jasmine integration tests with every feature.
• Installed &Configured SSL for authentication &LDAP for Application Server Authorization and Security.
• Implemented modular Framework for Selenium based scripts. Conducted Cross Browser Testing in Google Chrome and Firefox using Selenium Web Driver and tuned front-end stack for performance (performance tuning).
• Focused on Test Driven Development (TDD) by creating detailed JUnit tests for every single piece of functionality.
• Extensively worked on TOAD for interacting with Data Base, Stored Procedures and promoting SQL changes to QA.
• Used CVS for Source Code management and Version Control and Log4j to capture logs even at runtime exceptions.
• Performed Functional&Load test for the J2EE applications developed on Struts running on WebLogic/JBoss servers.

Environment: : J2EE, Java 1.6/1.7, Swing, JFC, Scala, Spring MVC, JSP 2.0, Eclipse, SWT, Servlets 3.1, Hibernate, AJAX, Web services, SOAP, XML, Ext JS, Backbone JS, jQuery, Html, CSS, JavaScript, Oracle 10g, Junit WebLogic Server and CVS.

Confidential, Kansas City MO

Senior Java Developer

Responsibilities:

• Involved in Requirements Gathering, Analysis, Implementation and Setting up the Development Environment.
• Worked with teams where requirements are constantly changed and implemented, tested and improved.
• Experience in application Design and Development with a comprehensive knowledge on Java and J2EE.
• Participated in designing the User Interface of the application using HTML, DHTML and Java Server Pages (JSP).
• Developed presentation layer using JSF framework, JSPs, JavaScript and AJAX to create interactive front-end GUI.
• Involved in writing Client-Side Scripts using Java Scripts and Server-Side scripts using Java Beans.
• Developed Java programs based on design documents in the form of State, Activity and UML Case Diagrams.
• Used different types of controllers like Simple Form Controller, Abstract Controller and Controller Interface etc.
• Designed and Developed the UI using Java Swing Components like JButton, JCheckBox, JList, and JSlider etc.
• Used Callableobjects for implementing Multithreading for parallel execution of independent events.
• Used Multithreading as a Programming and an Execution Model that allows multiple threads to exist within the context of a single process and to pull data concurrently from multiple resources to generate required files.
• Extensively used Hibernate Query Language and Implemented Persistence Layer and Service Layer components using Hibernate API and performed database object mapping using Hibernate Annotations.
• Integrated different applications using JMS, WebSphere MQ Connector, Apache Camel and Mule ESB.
• Developed ETL framework which is flexible to handle - DB2 DB, file2DB, XML2DB and Web Service to file.
• Created Tables, Views, Types, Triggers, Complex Join Queries, Stored Procedures, Functions and Modifications to existing database structure as required for the addition of new features using SQL developer.
• Used JDBC to access OracleDatabase and implemented connection pooling.
• Resolved the Critical Bugs identified in the JUnit, FIT,SIT , End to End, Regression, UAT and Performance testing.
• Involved in testing the application during the System and Integration Test Phasesand deployed on Tomcat Server.

Environment: Java, HTML, CSS, DHTML, JavaScript, JSP, JSF,Web Services, Eclipse, XML, Hibernate, SQL, Windows, JSP, Servlets, Tomcat, UML, Oracle, Junit, WebSphere and Linux.

Confidential

Java Developer/ Programming Analyst

Responsibilities:

• Actively participated in the complete life cycle of development, from the Design Phase to Implementation Phase.
• Developed the application using Eclipse IDETool and used standard features for Editing, Debugging, Compiling, Formatting, Build Automation and Version Control System in Java to support the user account module.
• Development UI modules using HTML, JSP, JavaScript and CSS for designing the user interface.
• Implemented error checking/validation on the JSP (Java Server Pages) using JavaScript.
• Valuable experience with Adobe FlexUI components as well as skinning of Custom Flex components.
• Generated Use Case diagrams, Class Diagrams and Sequence Diagrams using IBM Rational Rose.
• Developed Servlets to handle the requests, perform server-side validation and generate result for user.
• CMP entity beans were used to interact with the persistence layer and EJBSession Beans were used to process requests from the user interface and using JMS template for asynchronous functionality for multiple users.
• Created Online Pdf forms using Adobe LiveCycle ES2 Designer and integrated to Java code.
• Created Database Tables, Triggers, Views, Synonyms, Stored Procedures, PL/SQL Procedures, Packages and Functions while developing forms and reports andOptimized queries using Rule and Cost Based approach.
• Used SQL to access data from Microsoft SQL Server database and Used JDBC interface to connect to database.
• Deployed and tested the web application on WebLogic application server and JUnit testing tool to test the code.
• Adhered to best coding standards and run Test Suite to achieve 100% code coverage in testing by using EMMA .

Environment: JDK 1.4, Servlet 2.3, JSP 1.2, JavaScript, HTML, CSS, JDBC 2.1, Flex, SQL, EJB,SQL Server and WebLogic.