PROFESSIONAL SUMMARY:

• Over 8 years of extensive IT experience in all phases of Software Development Life Cycle (SDLC) which includes development, design, analysis, testing and Integration of various web based and client/server applications in multi - platform environments with Java/J2EE technologies.
• Experience in developing applications using SDLC methodologies like Waterfall, RUP, Agile (TDD, SCRUM) and Test-Driven Development.
• Expertise in developing web pages using HTML5, CSS3, Bootstrap, JavaScript, jQuery, AJAX, Angular JS, Angular 2 and have knowledge on Server scripting language like Node JS.
• Expert in Core Java and implementing concepts like Multithreading, Concurrency, Exception Handling, File handling, IO, Generics and Java collections in various projects.
• Developed the application using Java 1.8 and implemented its features like lambdas Expressions, Time API, Streams, functional interfaces, Collectors, default methods, type interfaces, for each.
• Developed Service Oriented Architecture (SOA) and Micro Service Architecture based J2EE applications.
• Managed Amazon Web Services like EC2, S3 bucket, ELB, Auto-Scaling, SNS, SQS, AMI, IAM, Dynamo DB, Elastic search, Virtual Private Cloud (VPC) through AWS Console and API Integration.
• Expertise in implementing Design patterns like Singleton, Factory, Prototype, Business Delegate, Session Facade, Service locator, Visitor, Observer, Decorator, Front Controller and DAO pattern.
• Experienced in developing web-based applications using Java/J2EE, Servlets, Struts (Struts, Tag Libraries and Struts custom validation rules, Tiles ), Spring IOC, Spring MVC, Spring AOP, Spring Security, Spring Boot, Spring Web Flow, Spring Data, JDBC, Web Services (SOAP & Restful services) and ORM frameworks like Hibernate, iBATIS.
• Excellent in developing REST and SOAP based Web Services using JAX-RS, JAX-WS, WSDL, JAX-B, Apache Axis, Apache CXF and Jersey frameworks.
• Experienced in implementation of JMS to exchange information over reliable channel in an asynchronous way by using ActiveMQ, RabbitMQ, Kafka as message queue.
• Experience using Hibernate for mapping Java Classes with database and using Criteria API and Hibernate Query Language (HQL).
• Involved in designing the user experience interface UI/UX strategy, UI requirements, converting findings into UI designs
• Proficient in developing RESTFUL web services in Python using XML, JSON.
• Worked with SQL databases like Oracle, My SQL, IBM DB2 and Hands on Experience in working with NoSQL Database like MongoDB, Cassandra to manage extremely large data sets.
• Proficient in writing SQL queries, PL/SQL stored procedures, Triggers and creating business tables.
• Experienced with deploying applications on to production servers, configuring various parameters of servers like Apache Tomcat, JBOSS, BEA Web logic, IBM Web Sphere.
• Portable deployment of applications as a single object using Docker.
• Actively involved in the DevOps streamlining process through Jenkins CI and CD Release Automation.
• Implemented a Continuous Delivery pipeline with Docker, Jenkins, Bamboo, GitHub and AWS AMI’s.
• Experience in working with IDE’S like Eclipse, Spring Tool Suite (STS), RAD and IntelliJ IDEA.
• Have extensive experience working on Windows, Linux and UNIX Operating Systems.
• Good understanding of Business workflow, Business logic and Business methods for further implementation of user requirement in a distributed application environment.

TECHNICAL SKILLS:

Languages: C, C++, Java 1.8, J2EE, Python, SQL and PL/SQL

Markup/XML Technologies: HTML5, CSS3, Bootstrap, JavaScript, jQuery, AJAX, Angular JS, Angular 2, Node JS, XML, XSD, XSL/XSLT, SAX/DOM, DOJO and JSON.

Tools: Struts, Spring, Hibernate, Spring MVC, Spring Web Flow, Spring IOC, Spring AOP, Spring Security, Spring Boot, JSF, JUnit, Apache CXF, SOAP UI, GWT, Jersey.

Build Automation: ANT, MAVEN, Jenkins, Bamboo, Gradle.

SOAP, RESTful, UDDI, WSDL, JAX: RPC, JAX-RS, JAX-WS, JAX-B, Micro services, Apache Axis and Apache CFX.

Cloud Technologies: Amazon Web Services (EC2, SQS, RDS, IAM, S3), Pivotal Cloud Foundry and Spring Cloud.

Web/App Servers: Web Sphere, Apache, Apache Tomcat, JBOSS EAP, Web Logic Server and Apache Camel

Oracle, SQL: Server 2005, MySQL server, MS SQL, IBM DB2, NoSQL DB like MongoDB and Cassandra.

IDE tools: Eclipse, RAD, Spring Tool Suite (STS) and IntelliJ.

Modeling/ CASE Tools: Rational Rose and MS Visio Professional.

Testing Tools/ Others: Selenium, TestNG, JUnit, TOAD, Soap UI, Putty, Rational Clear Quest, RTC, Load UI and Mockito.

Version Control: Tortoise SVN, CVS, Rational Clear case, Source Tree and Git.

OS & Environment: Windows Vista/XP/2000/NT, Win 2k Server, Sun Solaris, UNIX

Design Patterns: Singleton, Factory, Prototype, Business Delegate, Session Facade, Service locator, Visitor, Observer, Decorator, Front Controller and DAO pattern.

PROFESSIONAL EXPERIENCE:

Confidential, Rockville, MD

Sr. Full Stack Java Developer

Responsibilities:

• Participated in Requirements gathering, Design, Analysis, Development, Business Logics of the application.
• Adapted Agile Methodology from specification Analysis, Design, System integration, Testing, Deployment and Maintenance.
• Developed UI pages using JavaScript, JSP, CSS3, HTML5, jQuery.
• Used STS as IDE, configured and deployed the application onto Tomcat application server using Maven build scripts to automate the build and deployment process.
• Developed a new service between the development server and main server using Java 1.8, Spring, Restful Soap Services, Jackson JSON Parsing.
• Designed and developed various modules of the application with J2EE design architecture and frameworks like Spring MVC architecture and Spring Bean Factory using IOC, AOP concepts.
• Used REST methodology using HTTP Handlers in developing Web Service replication interface for setting up data feeds for content transportation in XML and JSON formats.
• Developed Spring Boot Standalone application and Jackson JSON Parsing to change from one JSON format to other JSON format using POJO, that works independently.
• Implemented JDBC for backend and frontend connections.
• RulesIT rules engine is used to create rules as per the need.
• Used Enterprise Java Beans(EJB) to make transaction processing and other web services.
• Achieved synchronization of multiple threads through Multithreading and Exception Handling.
• Developed interfaces/APIs in Java to interact with various backend systems.
• Created web services using Spring @RestController to return JSON to the frontend.
• Used Multithreading in programming to improve overall performance using Singleton design pattern.
• Used Oracle SQL Developer for Data Base storage and connections.
• Implemented service methods and SQL queries, PL/SQL to interact with the Oracle DBMS.
• Internal frameworks are used for making edits and transactions.
• Business Logics were implemented as per the customer needs.
• Developed unit testing frame work using JUnit test cases for continuous integration testing.
• Used JIRA extensively to log all issues and track development status.
• Involved in installing and configuring Maven for application builds and deployment.
• Implemented log4j logging framework by creating various Splunk monitoring tools dashboards for easy tracking and debugging.
• Participated in Code Reviews of other modules, documents, test cases.
• Project maintenance is done in Tortoise SVN and related documentation.

Environment: Agile methodology, Core Java, Java/J2EE, JDK 1.8, Spring MVC, EJB, Spring Boot, Struts, Tomcat, RESTful Web Services, JSP, MySQL, HTML5, CSS3, JavaScript, jQuery, AJAX, AWS EC2, Micro Services, Maven, Oracle, SQL, PL/SQL, JIRA, STS, Log4j, JUnit, SVN.

Confidential, Columbus, OH

Sr. Full Stack Java Developer

Responsibilities:

• Participated in all the phases of SDLC including Requirements gathering, Design, Analysis of the Customer Specifications, Development and Customization of the application.
• Adapted Agile Methodology from specification, Analysis, Design, System integration, Testing, Deployment and Maintenance.
• Involved in daily standup meetings to provide regular updates on individual tasks and progress of user stories.
• Developed UI components using Angular JS, Node JS, JavaScript, JSP, HTML5 tags, CSS3, AJAX and jQuery.
• Used RAD as IDE, configured and deployed the application onto Tomcat application server using Maven build scripts to automate the build and deployment process.
• Developed user-friendly interface to seamlessly combine the new module with existing login system by using Angular JS.
• Good Expertise in Stream of API for Bulk Data Operations on Collections and API improvements in Java 1.8.
• Maintained Interface compatibility and concurrency in the project using Java 1.8 new features like Lambda expressions, Default, Static methods and Concurrency API.
• Designed and developed various modules of the application with J2EE design architecture and frameworks like Spring MVC architecture and Spring Bean Factory using IOC, AOP concepts.
• Used REST methodology using HTTP Handlers in developing Web Service replication interface for setting up data feeds for content transportation in XML and JSON formats.
• Designed and developed Micro services , using Java, Spring , and REST .
• Involved in integrating JAX-RS into Spring Boot application.
• Implemented the various services using Micro Services architecture in which the services work independently.
• Experience in Docker engine and Docker Machine environments, to deploy the micro services -oriented environments for scalable applications.
• Achieved synchronization of multiple threads through Multithreading and Exception Handling.
• Developed interfaces/APIs in Java to interact with various backend systems.
• Created web services using Spring @RestController to return JSON to the frontend.
• Involved in writing Spring Configuration XML, file that contains declarations and business Classes are wired-up to the frontend managed beans using Spring IOC pattern.
• Implemented the application using Spring IOC, Spring MVC Framework, Spring Batch and handled the security using Spring Security.
• Used Multithreading in programming to improve overall performance using Singleton design pattern.
• Implemented and maintained monitoring and alerting of production and corporate servers such as EC2 and storage such as S3 buckets using AWS.
• Create and configured the continuous delivery pipelines for deploying Micro services using Jenkins CI server.
• Used Amazon S3 to backup database instances periodically to save snapshots of data.
• Implemented service methods and SQL queries, PL/SQL to interact with the Oracle DBMS and worked with Cassandra.
• Worked on Elastic search to convert raw data such as log files or message files into internal documents and stored them in a basic data structure like a JSON object.
• Project maintenance is done in Git, Bitbucket and related documentation in Confluence.

Environment: Agile methodology, Core Java, Java/J2EE, JDK 1.8, Spring MVC, Spring Boot, Spring Batch, Spring Security, Tomcat, Agile methodology, RESTful Web Services, JSP, MySQL, Cassandra, HTML5, CSS3, JavaScript, jQuery, AJAX, RabbitMQ, Elastic Search, AWS EC2, S3, Micro Services, Bamboo, Bitbucket, Angular JS, Node JS, Bootstrap, Splunk, Maven, Oracle, SQL, PL/SQL, JIRA, RAD, Log4j, JUnit, Git.

Confidential, Bloomington, IL

Full Stack Java/ J2EE Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) such as requirements gathering, modeling, analysis, design, development, and testing.
• Developed the view-controller components using JSP, HTML5, CSS3, AJAX, JavaScript (jQuery).
• Implemented routing logic and navigation from screen to screen and implemented login functionality on the client side in Angular JS.
• Hands-on experience in developing integration with Elastic search in any of the programming languages like Java and JavaScript. Having knowledge of advance reporting using Elastic search and Node JS.
• Implemented core features of Angular JS framework such as dependency Injection, Data-binding, Filters, Directives, Templates, Services and Deep Linking Designing.
• Used Java 1. 8 features like Stream and Lambda expressions.
• Maintained Interface compatibility and concurrency in the project using Java 1.8 new features like default, static methods and Concurrency API.
• Used Java 1.8 Method References feature to point to methods by their names and used functional Interfaces.
• Used Spring MVC framework for implementing Model-View- Controller (MVC) architecture at the Web tier level to isolate each layer of the application so that complexity of integration will be reduced, and maintenance will be very easy.
• Developed the monolithic application and involved in migrating existing monolithic application in to Micro Service Architecture based RESTful Service and deployments were done on AWS.
• Designed and developed Micro Services business components using Spring Boot.
• Hands on Coding to build REST Micro Services using Spring Cloud, Oracle, XSD, JSON, Spring Config, Cloud Foundry and Jenkins.
• Used Spring AOP for solving crosscutting concerns like keeping logged data and transactions details etc.
• Used Spring Batch for processing large amount of data like transaction management, job processing, resource management and logging.
• Secured the API's by implementing OAuth 2 token-based authentication/authorization scheme using Spring Security.
• Designed and developed third-party Payment services to Offer Users Convenient Payment Methods based on OAuth Protocol
• Used Hibernate ORM framework as persistence engine and wrote Hibernate Queries to automate the mapping between Oracle database and Objects in Java.
• Responsible for creating an instance on Amazon EC2 (AWS) and deployed the application on it.
• Installed, secured, and configured AWS cloud servers and Amazon AWS virtual servers(Linux).
• Used Kafka to handle data pipeline for high speed filtering and pattern matching on the fly and monitoring data pipeline operations. This involves aggregating statistics from distributed applications to produce centralized feeds of operational data.
• Used AWS Cloud Watch to monitor the application and to store the logging information.
• Focused on Test Driven Development there by creating detailed JUnit tests for every single piece of functionality before writing the functionality.
• Worked in Agile TDD environment using SDLC tools like GIT, Jira, Jenkins, Maven for build packaging and deployments of the application components.

Environment: Agile methodology, J2EE, Hibernate, Spring, XML, JSP, JAX-RS, Spring AOP, Spring security, Oracle, MongoDB, JSP, HTML5, CSS3, AJAX, JavaScript, jQuery, Angular JS, Docker, Kafka, GIT, JIRA, PL/SQL, STS, JUnit, Log4J, Maven, Jenkins, WebLogic Application Server, AWS IAM, EC2, S3, RDS, SQS.

Confidential, Denver, CO

Sr. Java/ J2EE Developer

Responsibilities:

• Worked on Elevated level and low-level system design, planning, estimation and implementation.
• Developed presentation layer using JSP, HTML5, CSS3 and client validation using JavaScript, DOM.
• Used two-way data binding features of Angular JS to implement Data binding to bind various server controls to the data from database.
• Implemented animation and styling using CSS3 and jQuery.
• Worked on High level and low-level system Design, Planning, Estimation and Implementation.
• Involved in writing JSP components. Used JSTL Tag library to create standard dynamic web pages.
• Worked on XML and JSON for transferring and retrieving data between different applications.
• Worked on generating the web service classes by using Service Oriented Architecture Micro Services, SOA, WSDL, UDDI and SOAP.
• Used Web Services for creating rate summary and used WSDL and SOAP messages for getting useful plans from different module.
• Implemented Core Java concepts like Multithreading, Concurrency, Exception Handling and Collections
• Designed and integrated the full-scale Spring / Hibernate persistence solution with the application architecture.
• Implemented Object Relational Persistence (Hibernate) for the domain model.
• Involved in design and development of the Hibernate Domain Model for the services.
• Worked on development and implementation of the MVC Architectural pattern using Spring Framework including JSP, and Servlets.
• Involved in identifying and implementation of different J2EE design patterns like Service Locator, Business Delegate, and DAO.
• Worked in wide-area network to maintain all the device related data onto MYSQL database.
• Experience in writing complex PL/SQL queries using joins, Stored Procedures, Functions, Triggers, cursors, and indexes in Data Access Layer.
• Experience in using JUnit and build tools such as MAVEN. Worked on Log4j for logging errors, messages and performance logs and SVN for version control.
• Deployed and tested the application in UNIX on IBM Web Logic Application Server.

Environment: Java, Multithreading, Concurrency, Exception Handling, J2EE, Hibernate, Java SDK, Web Logic, SOA, Micro Services, WSDL, UDDI, SOAP, JavaScript, JMS, Struts, JSON, Servlet, JSP, CSS3, HTML5, jQuery, Angular JS, AJAX, JDBC, Oracle, Maven, MySQL, Log4j, SVN, UML, JAXB, XML, Scrum, Unix/Linux, JUnit.

Confidential, Cincinnati, OH

Java/J2EE Developer

Responsibilities:

• Involved in analysis, specification, design, implementation and testing phases of Software Development Life Cycle (SDLC) based on the functional requirements.
• Application is implemented using agile methodology where there is a daily SCRUM meeting to understand the status and resolve any issues.
• Upgraded existing UI with HTML5, CSS3, jQuery, Bootstrap and Node JS interaction.
• Used NodeJS for building web applications with client-server architecture, where both can initiate communication in two-way connections and allow them to exchange data.
• Implemented the application using Spring IOC, Spring MVC Framework, Spring AOP, Spring Boot, Spring Batch, and handled the security using Spring Security.
• Designed and developed the End Points (Controllers), Business Layer, DAO Layer using Hibernate/JDBC template and Spring IOC (Dependency Injection).
• Spring MVC model integration for front-end request action controller.
• Used Apache Axis Service Engine for creating and deploying Web Service clients using SOAP .
• Consumed SOAP and Restful web services in SOA environment and used SoapUI for testing.
• Developed the persistence layer using Hibernate Framework, created the POJO objects and mapped using Hibernate annotations and Transaction Management.
• Extensively used hibernate named queries, criteria queries, Hibernate Query Language (HQL) and Optimistic Locking and Caching to process the data from the database.
• Created flows on messaging using ActiveMQ.
• Extensively used JUnit for unit testing, integration testing and production testing.
• Used JIRA to assign, track, report and audit the issues in the application.
• Worked with IntelliJ and used Gradle build tool to achieve more functionality for build process.

Environment: Java, HTML5, CSS3, Bootstrap, jQuery, NodeJS, Spring IOC, Spring MVC, Spring Batch, Spring Security, XML, XSD, SOAP, Restful, ActiveMQ, Cassandra, Log4j, SOA, Oracle, Apache Tomcat, Agile Methodology, JUnit, Maven, GIT, JIRA and IntelliJ.

Confidential

Java/J2EE Developer

Responsibilities:

• Involved in all phases of the Software development life cycle (SDLC) using Agile Methodology.
• Developed User Interface using JSP, JSTL, HTML, CSS, Java Script, jQuery and Angular JS.
• Used various jQuery UI controls and corresponding Event handlers.
• Used Spring MVC and Dependency Injection for handling presentation and business logic.
• To maintain loose coupling between layers published the business layer as services and injected necessary dependent components using Spring IOC and published cross cutting concerns like Logging, User Interface exceptions, Transactions using Spring AOP.
• Extensively used JSON to parse the data from server side to satisfy the business requirement.
• Implemented persistence framework using Hibernate & Handled Transaction Management using the provided data source.
• Responsible for designing Hibernate mapping files based on business logic and Object relationships.
• Integrated Spring and Hibernate together and worked on developing backend components and services using Hibernate and spring.
• Established Database Connectivity using JDBC, Hibernate O/R mapping with Spring ORM for DB2.
• Worked on Hibernate in Data Access Layer for mapping the Java objects to relational database and SQL queries to fetch the data, insert and update the data from the database.
• Consumed Web Services to interact with other external interfaces to exchange the data in different forms by using Restful service.
• Created tables, triggers, PL/SQL Stored Procedures, SQL queries, Joins, and views for IBM DB2.
• Implemented Restful and SOAP based Web Services and used Soap UI for testing.
• Used Spring JMS module for lookup for the queues and MDBs for the listeners.
• Involved in Unit Testing of various modules by generating the Test Cases.
• Performed deployment of applications on JBOSS.
• Written LINUX shell scripts to identify user login information.
• Involved in day to day handling of JIRA issues (production issues at time) that involved data inconsistencies that required to be solved in very less time.
• Involved in Bug fixing of various modules that were raised by the testing teams in the application during the Integration testing phase.

Environment: Java, J2EE, HTML, CSS, JavaScript, jQuery, Angular JS, JSP, JSTL, Spring, Hibernate, XML, XSD, SOAP UI, Web Services, Restful, SOAP, WSDL, Log4j, JUnit, DB2, JBOSS, Jenkins, SVN, Eclipse IDE, JIRA, Agile Methodology, Linux, Rational Rose and UML