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Sr. Java/j2ee Full Stack Developer Resume

Pittsburgh, PennsylvaniA

SUMMARY

  • 8+ years of IT experience in Design, Development, Implementation and Testing of applications using Java/J2EE.
  • Experience working with Software Development Life Cycle(SDLC) methodologies - Agile, Scrum, Waterfall Model.
  • Experience in implementing Java EE design patterns such as MVC, Singleton, Abstract Factory, Session Façade, DAO, DTO and business Delegate in the development of Multi-Tier distributed Enterprise Applications.
  • Experience in developing UI applications using HTML, CSS, Backbone Js, Bootstrap, Angular, React, Ajax, Node.js, JSP.
  • Extensive experience in Core Java concepts like Exception Handling, Multi-Threading, Synchronization, Serialization, IO, Collections, Framework, Java Beans.
  • Experience in developing Java/J2EE applications using JSP, JSF, Servlets, Struts, Spring, Hibernate, Webservices (SOAP, REST), XML, XSD, XSL and JNDI.
  • Experience with Spring MVC, IOC, Spring JDBC, Spring JTA, Spring IO, Spring Boot, Spring Dashboard, Spring Microservices, Spring Ribbon, Spring Netflix, Spring Zuul, Spring Eureka with Thymeleaf.
  • Experience in Spring Security for User Access Management and LDAP configuration for authentication.
  • Experienced in Middleware persistence frameworks like Hibernate/JPA for mapping java classes with database using HQL. Experienced in working on modern MEAN stack- MongoDB, Express.JS, AngularJS and NodeJS.
  • Knowledge and experience in working with messaging brokers like Apache Kafka, Active Mq, Rabbit Mq.
  • Developed SQL queries, procedures, Triggers and Stored Procedures in database such as Oracle, DB2 and MYSQL.
  • Experienced in working with multiple databases like Oracle 10/11g, MySQL, MongoDB, Cassandra and involved in converting Cassandra/SQL queries to Spark transformation using Spark RDDs.
  • Hands on experience with Amazon Web Services(AWS) like EC2, S3, Elastic Beanstalk, ELB (Load Balancers), RDS, VPC, Route53, Cloud Watch, Cloud Formation, IAM, SNS, SQS.
  • Hands on experience with Dev-ops tools like Docker, Kubernetes, Jenkins(CI-CD) and knowledge on Chef, Puppet, Ansible. Experience in creating rules using Business Rules Engines like Drools, ILOG, JBPM.
  • Good knowledge on Apache Storm which is used for real-time Stream processing and end-to-end delivery response.
  • Experience in using different version controlling/tracking systems Subversion, CVS, GIT and Rational Clear Case. Experienced in developing UNIX shell scripts for batch processing.
  • Experience in using build tools like ANT, GRADLE, MAVEN to compile, package the components to application servers. Experienced in developing UNIX shell scripts for batch processing.
  • Hands on experience with Integrated Development Environment(IDE) like Eclipse, IntelliJ, Spring Tool Suite(STS). Experience in testing frameworks like Junit, Mockito, TestNG, Power mock, Easy mock.
  • Expertise in Selenium automation using Selenium Web Driver, Selenium Grid, JAVA, Junit and Maven.
  • Maintained the Selenium and JAVA automation code and resources in source controls like GIT, CVS, SVN.
  • Experience in configuring and deploying the applications and messaging on Tomcat, WebSphere, WebLogic and JBOSS.

TECHNICAL SKILLS

Java/J2EE Technologies: Servlets, JSP, JSTL, JDBC, JMS, JNDI, RMI, EJB, JFC/Swing, AWT, Applets, Multi-threading, Java Networking

Programming Languages: Java1.6/1.7/1.8, C++, C, SQL, Scala, PL/SQL

Application/Web Servers: Oracle/BEA WebLogic 8.1/9.1/10.3 , IBM WebSphere 5.1/6.0/6.1/7.0 , Jboss, Tomcat 5.0.28/6.0, Bug tracking, Jenkins.

Frameworks: Struts 2.x/1.x, Spring 4.x/3.x/ 2.x, Hibernate 3.x, JSF 1.2/2.0, iBatis, Flex

UI Frameworks: jQuery, AngularJS, NodeJS, ReactJs, Bootstrap.

IDEs: Eclipse 3.x, IBM WSAD, IntelliJ, Dream viewer

Web technologies: HTML/HTML5, CSS/CSS3, XHTML,JavaScript, Ajax, jQuery, AngularJS/2/4, JSON, BackBonejs

Web Services: JAX-WS, JAX-RPC, JAX-RS, SOAP, REST, SOAP UI

XML Tools: JAXB, Apache Axis

Methodologies: Agile, Scrum, RUP, TDD, OOAD, SDLC

Modeling Tools: UML, Rational Rose, Visio

Testing technologies/tools: JUnit, JMeter, HTML Unit

Database Servers: Oracle 8i/9i/10g/11G, DB2, SQL Server 2000/2005/2008 , MySQL, NOSQL-MongoDB,Cassandra

Version Control: Git, CVS, SVN

Build Tools: Gradle, Maven, ANT

Platforms: Windows 2000/98/95/NT4.0, Linux, UNIX, Mac, Windows

Containerization Tools: Docker,Docker swarm,Kubernetes

Cloud Developments: EC2,S3,Elastic, ELB, Spring PCF(pivotal cloud foundry)

PROFESSIONAL EXPERIENCE

Sr. JAVA/J2EE FULL STACK DEVELOPER

Confidential, Pittsburgh, Pennsylvania

Responsibilities:

  • Experience working in Agile development following SCRUM process, Sprint and daily stand-up meetings.
  • Developed applications using new features of Java 1.7/1.8 like Annotations, Generics, enhanced for loops and Enums. Worked with Angular CLI and Typescript in Angular 2/4 to create Angular components.
  • Worked with Advanced Java 8 features like Lambda, filters and Predicates for adding functionality processing capability and Stream API to facilitate pipeline processing and method to eliminate elements based on the criteria.
  • Developed UI layer for the application using HTML5, CSS3, Angular 2, ReactJS and Bootstrap.
  • Worked on media queries as a compliment to the grid system of UI Bootstrap to facilitate the implementation.
  • Experience in using PrimeNG to create UI components and to create robust services and UI widgets.
  • Created arrange loop directive and components like data binding, dependency injection in Angular 2 and ReactJS.
  • Used ReactJS to create views to hook up models to the DOM and synchronize data with server as a SPA.
  • Involved in building single page cross browser compatible applications using Angular 2(Angular Routing).
  • Created the Nodejs server to build MVC framework from front-end side Angular 2 to back-end Oracle.
  • Worked with advanced MVC framework such as Spring-IOC, MVC and Batch to implement backend functionality.
  • Heavily used Spring Inheritance, Auto Wiring, Core-Container, Security, ORM modules as part of migration from EJB to Spring, Spring Quartz for scheduling tasks to generate reports.
  • Implemented SOA to develop Spring Restful and implemented Spring Eureka, Netflix, Ribbon using Apache AXIS. Created and injected Spring services, Spring Controllers and the DAOs to achieve DI and to wire objects.
  • Participated in coding Spring AOP components for the Logging, Exception handling and Transactional Models.
  • Developed Spring Boot application with microservices and deployed in AWS using EC2 instances.
  • Used Spring Boot based services to interact through a combination of REST and Apache Kafka message brokers.
  • Worked with Kafka Cluster using Zookeeper apart from JMS as messaging service.
  • Developed Web API’S using Restful web services which can be accessed from various tools and enable CNC employees to access information on member activities.
  • Implemented Spring circuit breaker pattern, integrated Hystrix dashboard to monitor Spring microservices.
  • Worked on the creation of custom Docker container images, tagging, pushing images, integration of Spring Boot.
  • Used Hibernate JPA, Object/Relational-Mapping(ORM) solution, technique of mapping data representation from MVC model to Oracle Relational data model with SQL based schema.
  • Used Hibernate Transaction Management, Hibernate Batch Transactions and Hibernate cache concepts.
  • Hands on experience with Cassandra Installation, Configuring, Monitoring and Designing Shared Environment.
  • Worked on Cassandra concepts such as locking, transactions, indexes, replications, schema design.
  • Followed Java and J2EE design patterns like Singleton, Service Locator, Session Façade, DAO during development. Developed API for using AWS Lambda to manage the servers and run the code in the AWS.
  • Generated Scala and Java classes from the respective APIs so that they can be incorporated in the overall application.
  • Performed configuration, deployment and support of cloud services including Amazon Web Services (AWS).
  • Configured AWSIdentity and Access Management (IAM) Groups and Users for improved login authentication.
  • Developed API for using AWS Lambda to manage the servers and run the code in the AWS.
  • UtilizedAWSLambdaplatform to upload data into AWS S3 buckets and to trigger otherLambda functions (Including EC2, MongoDB focusing on high-availability, fault tolerance, and auto-scaling).
  • Developed applications using Rule Engines Drools4.x, Work Flows, Human tasks to implement business rules validations. Integrated the JBPMwith the Spring Framework in the enterprise layer.
  • Designed and implemented Oracle 11g database to record the collateral securities and settlement data.
  • Integrated the JBPMwith the Spring Framework in the enterprise layer.
  • Wrote SQL queries, stored procedures and enhanced performance by running explain plans.
  • Developed Maven scripts and developed builds using Maven and continuous integration servers like Jenkins.
  • Involved in using Gray log validation tool to validate logs.
  • Developed Integration test suites for all services invoking python scripts using JSON.
  • Experience with WebLogic application server to deploy the applications and configure multiple data sources messaging.
  • Executed test scripts using Selenium web driver and analyzed the test results and implemented navigation using Spring MVC controllers and configured controllers using Spring MVC annotations and configuration files.
  • Worked with GIT as a version control tool in the project and done unit testing with Junit and Mockito.

Environment: Java 8, J2EE, Spring, Spring Boot, Spring Security, Spring Eureka, Netflix, Ribbon, Hibernate, Angular.js/2/4, HTML5, CSS 3, JavaScript, JQuery and CSS, SOAP, WebSphere, JBoss, Eclipse, GIT, GitHub, Apache Kafka, Apache Camel, Zookeeper, Docker, AWS, JUnit, Jenkins, MongoDB, Oracle, Karma, Jasmine, Grunt, Bower.

Sr. Java/J2EE Full Stack Developer

Confidential, Columbus, OH

Responsibilities:

  • Involved in various phases of Software Development Life Cycle (SDLC) of the application like Requirement gathering, Design, Analysis and Code development and Customization of the Application.
  • Actively involved in Analysis, Design, Development, System Testing and User Acceptance Testing. Successfully followed agile methodology in the Scrum Cycle model to help, respond quickly to business needs.
  • UsedSpringInversion of Control (IOC) for injecting the beans and reduced the coupling between the classes.Implemented the Model View Controller usingSpringMVC.
  • Used Spring actuator-configuring Spring Boot application, monitoring and invoking HTTP endpoints.
  • Implemented the application usingSpring BootFramework and handled the security usingSpringSecurity. Used XML Web Services using SOAP to register agents using non-java application.
  • Curl is a command line tool for doing all sorts of URL manipulations and transfers.
  • Developed services that are reusable and interoperable, based on SOAP, WSDL, JAXWS, JAXRPC
  • Web services by exchanging XML data between applications over HTTP.
  • Used JMS for the asynchronous exchange of critical data and events among J2EE components. Publisher-Subscriber method was used for data loading and Point-To-Point method of JMS was used for event processing. Involved in writing DAO, DTO’s using Hibernate DAO Support.
  • Implemented persistence layer using Hibernate that uses the POJOs (which do not have the business processes) to represent the persistence database tuples. Worked with POJO for handling data coming from the legacy systems.
  • Configured Swagger-UI registered Micro service with Eureka server to monitor service health check.
  • Utilized Object Oriented Programming in JavaScript and DOM structure to implement various functionalities and DOM parser to parse the XML documents and XSLT for transformations.
  • Developed Interactive web pages using HTML5, CSS3 and JavaScript. Develop various screens for the front end using Angular JS and used various predefined components from Node NPM.
  • Extensively used the JavaScript and jQuery plug-in to fetch and display the data on web pages and create interactive features in the application. Worked with jQuery concepts like selectors, and filters.
  • Coded pages with best Search Engine Optimization (SEO) techniques.
  • Designed applications that execute on various browsers such as Internet Explorer, Mozilla Firefox, Google Chrome, and Opera using various debugging tools like Firebugs/IE Developer Tools.
  • UsedMongoDBand OracleDBfor the application. The legacy info was going to Oracle and rest toMongoDB.
  • Performed CRUD operations like Update, Insert and Delete data inMongoDB.
  • Continuous integration services are provided for software development using JENKINS.
  • Implemented security for different front-end views based on the access privileges.
  • Spring with Tiles Framework is implemented for a common look in all the presentation views.
  • The application is designed using J2EE design patterns and technologies based on MVC architecture.
  • Used J2EE design patterns like Value Object Pattern, Session façade, Singleton, Factory and DAO.
  • Developed JUnit test cases for DAO and Service Layer methods for all the developed modules.
  • Executed test scripts using Selenium web driver and analyzed the test results and implemented navigation using Spring MVC controllers and configured controllers using Spring MVC annotations and configuration files.
  • Developed the ANT scripts for preparing WAR files used to deploy J2EE components.
  • UsedGIT as Version Control and iText to generate pdf in the form of a tree.Done unit testing using Test NG. Used GIT as version management, JIRA for defect management system.
  • Used Log4J to capture the log that includes runtime exceptions.
  • Used RAD IDE based on Eclipse for writing code for JSP, Action Classes and spring beans.
  • Interacted with quality assurance team for requirements gathering and analysis.

Environment: Java, J2EE, Spring, Spring DI, Spring Actuator, Spring Boot, Spring Security, SOAP, WSDL, JAXWS, JAXRPC, JMS, Curl, Hibernate, HTML5, CSS3, Angular JS, JavaScript, jQuery, Swagger, JENKINS, JSP, AJAX, Eureka, Cassandra, ANT, GIT, JIRA.

Sr. Java /J2EE Developer

Confidential, West Des Moines, IA

Responsibilities:

  • Involved in preparing System Requirements and detailed Design document for the project.
  • Extensively used various modules in Spring like AOP, DI (IOC), Bean Wiring, Spring Inheritance, Auto Wiring, Spring JDBC Templates and Spring Quartz Schedulers for Jobs.
  • Involved in developing components on Reporting Dashboard with Spring MVC, Spring Framework, Spring Security and Hibernate and created Microservices using Spring Boot.
  • Designed and developed the End Points (Controllers), Business Layer, DAO Layer using Hibernate, Hibernate Transaction Managementand Spring IOC (Dependency Injection).
  • Extensively worked on JPA as persistence layer and Java Messaging Service(JMS), involving EJB3.0 annotations, synchronizing Data base tables through XML in a secondary project.
  • Extensively used Session beans for implementing the business logic of module.
  • Developed Web Services SOAP/HTTP, SOAP/JMS, SMTP using SOA technologies such as SOAP, WSDL and UDDI. Heavily used SOAP UI Pro version for testing the Web Services.
  • Involved in consuming, producingSOAPbased web services usingJAX-WS.
  • Developed UI application modules using HTML, CSS and JavaScript, JSON, jQuery and AJAX. Used Bootstraplibrary to build application UI's and used AngularJS to associate HTML elements to models.
  • Extensively used/modified JQUERY to perform AJAX calls for creating interactive web pages on JSON response. jQuery opinionated about how a CRUD application should be built.
  • Creating cross-browser compatible and standards-compliant CSS-based page layouts.
  • Client-Side code were written inReactJS, JQuery and server-Side Code were developed using MVC4.
  • Used Angular Routing for navigating between screens and developed several reusable directives.
  • Database development required creation of new tables, PL/SQL Stored Procedures, Views, Indexes and Constraints, Triggers and required SQL tuning to reduce the response time in the application.
  • Utilized DOM, SAX parser technologies in implementing XML parsing framework.
  • Extensively used MVC, Factory, Delegate and Singleton design patterns.
  • Used AWS (Amazon Web Services) stack (Including EC2, Route53, S3, RDS, Dynamo DB, SNS, SQS, IAM) Deploying, managing and operating scalable, highly available, and fault tolerant systems.
  • Implemented responsive web design using Bootstrap and Apache Cordoba.
  • Created and Written automated regression tests usingJMeter scripts for load testing.
  • Used JMeter for stress testing., Selenium WebDriver for testing the automation code.
  • Develop unit test using Karma and Jasmine. Followed strict patterns of RA team for unit test cases with jasmine to verify AngularJS modules and JavaScript utility routines.
  • Installed and configured WebSphere Process Server 6.1 and WebSphere ESB 6.1, WID.
  • Used version control repository SVN (Subversion by apache) and JIRA for issue tracking.

Environment: Java, J2EE, Spring MVC, Spring Security, Spring Boot, Spring MVC, Spring IOC, JPA, Hibernate, JMS, SOAP, WSDL, UDDI, HTML, CSS JavaScript, JSON, jQuery, AJAX, AngularJSPL/SQL, AWS, Apache Cordoba, JMeter, Karma, Jasmine, WebSphere, SVN.

Sr. Java Developer

Confidential, Los Angeles, CA

Responsibilities:

  • Involved in analysis, design and development of Expense Processing system and developed specs that include Use Cases, Class Diagrams, Sequence Diagrams and Activity Diagrams.
  • Well experienced in Core Java - asynchronous programming, multithreading, collections and a few design patterns. Taken care of complete Java multi-threading part in back end components.
  • Used Java Messaging Services (JMS) for reliable and asynchronous exchange of important information such as payment status report and Spring for cross cutting concerns and IOC for dependency injection.
  • Used Hibernate in data access layer to access and update information in the database.
  • Used Web services - WSDL and SOAP for getting credit card information from third party.
  • Used Hibernate Transaction Management, Hibernate Batch Transactions, cache concepts.
  • Designed various tables required for the project in MySQL database and used the Stored Procedures in the application also worked on the system landscape includes configuring Linux and SQL database.
  • Developed several annotated managed beans and integrated with Spring 3.x framework
  • Used AJAX Framework for Dynamic Searching of Bill Expense Information.
  • Used Log4J to capture the log that includes runtime exceptions, monitored error logs and fixed the problems.
  • Developed JUnit test cases for all the developed modules.
  • Used CVS for version control across common source code used by developers.
  • Used ANT scripts to build the application and deployed on WebSphere Application Server.
  • Involved in designing and implementation of Session Facade, Business Delegate, Service Locator patterns to delegate request to appropriate resources in the development of Multi-Tier distributed Enterprise Applications.
  • Worked on Ext JS for user interface widgets with High performance scalable grids, trees and menus.
  • Deployed the applications on IBM WebSphere Application Server.

Environment: Core Java, J2EE, JSP, JavaScript, Spring, JMS, Hibernate, MYSQL, Eclipse 3.4, log4j, JUnit, HTML4.0, CSS, MySQL, XML, CVS.

Java/J2EE Developer

Confidential, NY

Responsibilities:

  • Identified the Business requirements of the project and involved in preparing System Requirements.
  • Involved in preparing the Detailed Design document for the project by extensively using MVC, Factory, Delegate and Singleton design patterns and used Java 1.4 for the compilation.
  • Developed the middle tier using EJBs, Java Servlets and debugged the servlets and EJB with WebSphere Application server also developed session, entity beans and message driven beans.
  • Used XML/XSLT for transforming common XML format and SAML for Single Sign-On.
  • Designed and implemented Java Classes to use JAXP parser to create Java objects to be able to modify the data received in the response and configured XML Schema for the application.
  • Handled Java multi-threading part in back-end component, one thread will be running for each user.
  • Used SOAP for Web Services by exchanging XML data between applications over HTTP.
  • Designed and developed the UI using JSP, HTML, CSS and JavaScript, AJAX, JSON. Whereas JavaScript is used for the client-side validation and developed Web GUI involving JavaScript under MVC architecture.
  • Used Spring Framework AOP Module to implement logging in the application to know the application status. Used Spring DAO Module to deal with Database.
  • Spring MVC Framework IOC (Inversion of Control) design pattern is used to have relationships between application components. It is also used to separate the application configuration and dependency specification from the actual application code along with singleton to achieve clean separation of layers.
  • MQ was used to provide a single unifying transport that reduces cost and maintenance efforts, including support for HTTP, REST and JMS which involves communications without side systems.
  • Junit tests were written and performed unit test to test each module in the application.
  • Wrote Ant Scripts for preparing WAR files to automate the build and to deploy J2EE components.
  • Involved in Code Review, Unit Testing and Integration Testing.
  • Designed the data flow for the client-side screens and the object interaction layer for the server-side components using Rational Rose (Case Diagrams, Class Diagrams and Sequence diagrams).

Environment: Core Java, J2EE, JSP, JavaScript, EJB, HTML, CSS, JavaScript, AJAX, JSON, XML/XSLT, SOAP, Junit, Java Servlets, Rational Rose.

Confidential

Software Engineer

Responsibilities:

  • Involved in Requirement Analysis to understand the Company needs for various downstream systems. Created the design using class diagrams and sequence diagrams.
  • Involved in deciding the WEB Service architecture with XML and SOAP for integrating with heterogeneous systems and to register agents using non-java applications.
  • Designed and implemented SOAP XML Request and Response, WEB Service WSDL using XML SPY.
  • Implemented WEB Service using Apache SOAP API (2.1), WASD.
  • Designed and implemented subsystem for administrative tasks (like verify data loads, consistency check and notify clients for data extract) using SERVLETS, session and Entry bean andjavaclasses.
  • Developed dynamic WEB screens, Customization of the screens done using JSP.
  • Designed and guided the team for implementing Client module and XSL conversions for transforming common XML format and SAML for Single Sign-On using XSLT (XALAN).
  • Tested and debugged SERVLETS, JSP using Visual age JSP execution monitor.
  • Implemented various design patterns in the project such as Business Delegate, Data Transfer Object, Data Access Object, Service Locator and Singleton.
  • Used JDBC for communicating with the database for developing business module applications.
  • Involved in writing XML documents.Involved in writing build scripts using UNIX.
  • Handled database interaction writing SQL Queries, Oracle 8i was used as Database for central Fund repository and designed Health Check module to monitor current health of the system.
  • The service was deployed on WEBSPHERE 4.0.

Environment: Core Java, J2EE, JSP, WSDL, JavaScript, SQL, SAML, Oracle 8i, SERVLETS, UNIX, WEBSPHERE 4.0.

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