SUMMARY

• Over 8+ years of experience as a Full stack Java Developer in different phases like design, development and deployment of enterprise, client - server, distributed, Internet/Intranet based database applications for the Financial and Retail sectors, Implementation of software applications using Java, J2EE technologies and developing web applications using java scripts (Angular, React, Node, Bootstrap, and Express) and Databases (MySQL, PostgreSQL, MongoDB), AWS, Azure and Spring framework.
• Experience in developing applications using SDLC methodologies like Waterfall, Agile and Test-Driven Development.
• Expertise in Core Java concepts such as OOPS concepts, Multithreading, Synchronization, String handling, Serialization & De-serialization, Generics, Collections and Event/Exception handling.
• Good Knowledge on Java 8 features like Lambda expressions, functional interface, filters and Stream API for Bulk data operations on Collections which would increase the performance of the Application.
• Expertise in implementing design patterns like Singleton, Factory, Prototype, Business Delegate, Session Facade, Service locator, Visitor, Observer, Decorator, Front Controller and DAO pattern.
• Experience in leveraging API Gateway developing Cloud computing microservices using Spring Boot, Spring Cloud and Netflix based Service Discovery, Eureka Server and Hystrix.
• Experienced in developing web-based applications using Java/J2EE, Servlets, Struts (Struts, Tag Libraries & 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.
• Expertise in developing web pages using HTML5, CSS3, Bootstrap, JavaScript, jQuery, Ajax & AngularJS.
• Professional in creating Templates, Mockups and Prototypes, Web Interfaces, Layouts, Flow of Future Pages.
• Experienced in using Frameworks such as ReactJS, Angular JS and Node.js.
• Skilled at using React JS components, Forms, Events, Keys, Router, plus Redux, Animations, Flux concept.
• Well versed in designing Use cases, Class diagrams, Sequence and Collaboration diagrams for multi-tiered, object-oriented system architectures utilizing Unified Modeling Tools (UML).
• Good Knowledge on working with OAUTH2 to provide authentication and authorization to Rest services by exchanging Access tokens.
• Experience in building and deploying ANT/MAVEN scripts for deployment and customizing WAR/JAR file management for web applications.
• Experience in working with NoSQL Database like MongoDB, Cassandra to manage extremely large data sets.
• Proficient in writing SQL queries, stored procedures, Triggers and creating business tables.
• Expertise in writing unit test cases with Mockito and JUNIT and performed integration testing.
• Strong experience in various Agile methodologies like Test Driven Development (TDD), BDD, ATDD.
• Extensive working knowledge on automation for deployment/configuration of different Application servers like WebSphere, WebLogic, JBoss, Web Servers like Apache, Tomcat.
• Experience on working in cloud services AWS and Azure.
• Managed Amazon Web Services like EC2, S3 bucket, RDS (Postgres, SQL), SNS, SQS, Kinesis, Lambda, Virtual Private Cloud (VPC) through AWS Console and API Integration.
• Expert in development of company's internal CI system, providing a comprehensive API for CI/CD.
• Closely worked with Release Management team in doing builds and code deployment into various environments.
• Golang and Java were used as a backend REST service while AngularJS was used for the user interface.
• Experience in testing web services like Postman, SOAP UI, Swagger UI and service level testing like Cucumber and Selenium for UI automation.
• Developed JMS messaging components to handle asynchronous messaging from queues using Spring JMS, Tibco EMS, Apache Kafka and message brokers such as ActiveMQ and RabbitMQ.
• Logging using Log4j Framework, SLF4J and develop and execute Test cases, Test scripts and maintaining Test scripts.
• Experience in implementing end to end testing using Jasmine and Karma, Unit Testing using Junit, TestNG.
• Experience in deploying dynamic web applications using IBM WebSphere, Web Logic and Tomcat Application Servers.
• Experience on version control tools like SVN and GIT.
• Excellent team player, self-motivated, have good communication and interpersonal skills.

TECHNICAL SKILLS

Core Languages: C, C++, Java (J2SE, JEE 1.7/1.8), JavaScript

Java Technologies: JSP, JSF, JavaBeans, JDBC, Servlets, EJB, Hibernate, Spring 4.0, Spring Batch, Spring Cloud, Spring Boot, Spring MVC

Web Technologies: HTML, CSS, JavaScript, XML, jQuery UI, Ajax, CSS3, Angular 4.x, Angular 6, Angular 8, Angular 9, ExtJs, Node.js, Bootstrap, ReactJS, JSON

Web Services: SOAP, Restful

Frameworks: Spring MVC, Hibernate

Databases: Oracle 11g, DB2, MySQL, PostgreSQL, MongoDB, Cassandra

Web Servers: IBM WebSphere, WebLogic, Apache Tomcat, JBoss

Server Scripting: JSP, JSTL, Custom Tag Library, AJAX

Build & Containerization Tools: Ant 1.7, Maven 2.x, Gradle, Docker, Kubernetes

Cloud Environments: AWS, Netflix Eureka, Azure

Version Control: Git, SVN, Bitbucket

PROFESSIONAL EXPERIENCE

Java Full Stack Developer

Confidential, Indianapolis, IN

Responsibilities:

• Involved in Analysis, Design, Coding, and testing phases of the back-end server-side business logic development by following Agile Scrum Methodology.
• Created Reusable Modules and Custom Directives in Angular 9 which is used in the application.
• Implemented AngularJS controllers to maintain each view data and Angular Service calls using Angular Factory tested all application controllers with AngularJS built-in testing facilities.
• Spring Controllers were used with Angular 9 to route the control to desired Java services
• Engaged in developing UI using HTML, jQuery, Angular9, JavaScript and AJAX to make calls to other services.
• Used various core java concepts like Collections, Multithreading for complex data computations and analysis.
• Involved in developing code for obtaining bean references in Spring framework using Dependency Injection and Inversion of Control (IOC).
• Worked with NoSQL database to store JSON like dynamic connections data.
• Experience in migrating data from Oracle database using Spring JDBC to Apache Cassandra (Datastax) NoSQL Database.
• Used Spring Framework AOP to implement logging in the application, Spring DAO for data access.
• Designed the project using Dispatcher Servlets, Controllers and View Resolvers of Spring MVC framework utilizing spring concepts like Dependency Injection and AOP (Aspect Oriented Programming) for business logic.
• Used Spring Security Management for user verifications.
• Developed the code environment using IDE asEclipse3.2and deployed intoTomcat ServerDeveloped ANT build.xml to achieve more functionality for build process.
• Worked on Installing and configuredTomcatServer.
• Worked on Database design and development, which includes developing Stored Procedures, functions using PostgreSQL databases.
• Used Hibernate to store the persistence data into the PostgreSQL database and wrote HQL to access the data from the database.
• Experience in Oracle Retail Merchandising system RMS/Retek and Retail Price Management RPM .
• ProductOracle Retek package-RPM custom built IPT application
• Backend development in Golang for Limit Monitoring system.
• Involved in database needs of applications and optimized them using PostgreSQL.
• Involved in building the application which works on mainly Groovy grails, Html, Css, Rest services, Java script, Spring, Maven, Hibernate.
• Expertise inHibernate,Docker,Jenkins, Azure, EMR, Apigee, Splunk, Dyna TraceManagement tools and a web commerce likeATG
• Azure Resource Manager (ARM) provides security, auditing, and tagging features to help you manage your resources after deployment.
• Experience in design architecture and development of batch jobs using Quartz and Spring batch
• Designed and developed spring batch based system to process 1 million transactions.
• Used Azure Resource Manager (ARM) to deploy, update, or delete all the resources for your solution in a single, coordinated operation.
• Experience of the design patterns and best practices with golang (and more) to start with design and get to deployable production systems including scale monitoring and instrumentation platform.
• Built enterprise wide DNS historical data trending analysis tools in Go (Golang), Languages with REST API for user quieries as Microservice.
• Interpretation and understanding of functional specifications, good understanding ofTIBCO I Processengine components, SSO Java API, standard configuration settings that may impact engine functionality and performance. Assist designers inintegrating TIBCO Business Works and I Processinto technical design. Writing technical design and build documents adhering to company standards.
• Developing TIBCOI Process/BW application and services, Hands-on Development withI Process11.xand TIBCO Business Studio 3.x.x, Also Understanding Developing application thru I Process Modelerand Business Works designer. Develop quick proof-of-concepts for users.
• Conducting code review Java, J2EE and TIBCO to provide constructive feedback, mentoring less experienced members of the team or those new to the technology.
• Profound experience in creating real time data streaming solutions using Apache Spark/Spark Streaming, Kafka, and Flume
• Core development experience for Groovy Grails restful web services.
• Experience in handling messaging services using Apache Kafka.
• Involved in development of REST Web Services using Spring Cloud to extract client related data from databases and used SOAP UI, POSTMAN for testing RESTFUL API web services.
• Developed RESTful Services with Java using JAX-RS, Jersey and Spring Boot. Coding for consuming the REST APIs, getting JSON response and parsing them to get the required formats.
• Additional responsibilities like actively closing defects identified by QA team, and writing unit test cases by using Junit testing framework for the application developed in AngularJS.
• Performed testing and troubleshooting on various securities (currencies) using charting tools (High Charts).
• Implemented Selenium Web Drivers and Karma For testing the UI components.
• JUnit and Mockito framework were used for performing unit and integration testing by writing test cases.
• Worked on Serverless cloud resource Lambda to configure and triggering files, to generate stacks and templets of corn job that will trigger every 30 minutes.
• Developed Spring boot applications and microservices and deployed on AWS EC2 instances.
• Worked on core AWS services such as setting up new server (EC2) instances/services, configuring security groups, and setting up Elastic IP's.
• Experienced in all phases of the Software Development Life Cycle (SDLC) with specific focus on the build and release and quality of software and involved with teams that worked on Scrum, Agile Software Development and Waterfall Methodologies. Expertise in DevOps, Release Engineering, Configuration Management, Cloud Infrastructure, Automation by using various tools like GitHub, SVN, Bitbucket, Terraform, Ant, Maven, Jira, Jenkins, Bamboo, Chef, Puppet, Ansible, Docker, Kubernetes, Nagios.
• Provided support for troubleshooting and resolving production issues during releases and post releases.
• Worked with AWS Infrastructure teams for configuring security groups and access controls.
• Implemented REST Microservices using spring boot. Generated Metrics with method level granularity and Persistence using Spring AOP and Spring Actuator.
• Performed Service Level Testing for Web services using Soap UI, Postman and Apigee.
• Experience in Microservices Architecture with Spring Boot and Docker.
• Used Agile methodology and effectively took part in Scrum gatherings to deliver quality deliverable within time.
• Experience with Design, code, and debug operations, reporting, data analysis and web applications utilizing Python.
• Good experience in developing customized policies in Apigee Edge and developing API's in Apigee Baas.
• Enhancement, Support and Implementation of various web, stand-alone, client-server enterprise applications using Python, Django in various domains. Experience in developing web-based applications using Python 2.7/2.6, Django 1.4/1.3, PHP, Flask, Webapp2, Angular.js, VB, C++, XML, CSS, HTML, DHTML, JavaScript and JQuery.
• Part of team implementing REST API's in Python using micro-framework like Flask with SQLAlchemy.

Environment: JAVA 1.8, Spring Framework 4, Spring Boot 2.x, HTML5, CSS3, Kafka, Angular9, XML, XSL, REST, JAX-RS, JUnit, Mockito, Tomcat, PostgreSQL, AWS Resources, TIBCO Business Studio, APIGEE, APIGEE Edge, APIGEE Killer.

Java Full Stack Developer

Confidential, Bothell, WA

Responsibilities:

• Involved in developing UI using Spring MVC framework, JSP, JSTL, HTML5, CSS, JavaScript, jQuery, AJAX.
• Worked on Core Java concepts such as OOPs Concepts, Collections Framework, and Exception Handling, I/O System, Multi-Threading, JDBC, Generics.
• Used Java8 features in developing the code like Lambda expressions, creating resource classes, fetching documents from database.
• Hands on Experience in creating API Proxy's in Apigee Edge using Node.js, Java Script as well as out of box Policies.
• Used design patterns like Singleton, Data Access Objects, Factory and MVC patterns.
• Used ReactJS to build the UI components, developed filters to display different dimension of data and font size modifiers and developed container components as the logic layer for the UI component
• Created and configured Micro-Services architecture and integrated with React.js application.
• Testing and production support of core java based multithreading ETL tool for distributed loading XML data into Oracle database using JPA/Hibernate.
• Consumer API’s communicate to other services or API’s via APIGEE proxy, and some consumer’s use Rabbit MQ as a medium to delegate messages.
• Created POJO's and DAO's for the database entities using Spring JDBC annotation mappings
• Converted a monolithic app to microservices architecture using Spring Boot using 12-factor app methodology. Deployed, Scaled, Configured, wrote manifest file for various Microservices in PCF.
• Used spring config server for centralized configuration and Splunk for centralized logging. Used Concourse and Jenkins for Microservices deployment
• Integrated with Spring Cloud projects to provide distributed tracing and other features.
• Responsible for developing the sequential and conditional batch jobs using the Spring batch framework
• Designed and developed asynchronous RESTful Microservices using Spring boot.
• Used Spring Core annotations for Spring Dependency Injection, Spring MVC for Rest API's and Spring Boot for microservices.
• Extensively used automated batch scheduling such as Autosys and data mapping through ETL (Extract Transform and Load).
• Development of cloud hosted web applications and REST APIs using Spring Boot with embedded Tomcat.
• Designed dynamic web pages using custom ReactJS, Typescripts and CSS.
• Integrated ActiveMQ & spring JMS API to send and receive message for the application's RESTful API.
• Worked on NoSQL database like MongoDB installation, configuration and in designing MongoDB multi-shared cluster and monitoring with MMS.
• Created collections and performed CRUD operations on MongoDB and used Mongo Repository and spring Mongo template for persistence
• Installed the WebSphere MQ and involved in configuring MDB listeners, JMS resources, and queues and integrating with the WebSphere Application Server.
• Used log4j to print the logging, debugging, warning, info statements.
• Worked on Node.js, Require JS and MVC Frameworks for the development of the web application
• Used React-Autocomplete for creating google maps location search on the webpage Added Excel-Builder to download the Tabular data in Excel format using React.
• Involved in setting up Test automation and developed cucumber feature files and used Selenium for automated testing with TestNG.
• Used GIT with Stash for code repositories.
• Participated in troubleshooting issues on Azure, Netflix Eureka and Cloud Environments.
• Involved in developing DevOps pipeline using Azure cloud service and Kubernetes for Microservices Architecture. working with Docker to improve our (CD) Continuous Delivery framework to streamline releases.
• Deployed applications into Continuous integration environments like Jenkins to integrate and deploy the code on CI environments for development testing.

Environment: Agile, HTML, CSS, JavaScript, jQuery, AJAX and React.js, XML, DAO, POJO, JPA, JAVA, Java8, Springs(IOC,AOP, JDBC) Frameworks, Spring Boot, Microservices,JSP, Hibernate Framework,, RESTful Web services, SOAP, Maven, WebSphere Application Server, Mongo DB, NoSQL, Log4j, Jenkins, JIRA, Selenium Web Drivers, Protractor, Hystrix Dashboard, Azure, Netflix

Web Application developer

Confidential, Dallas, TX

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) of the application like Requirement gathering, Design, Analysis and Code development.
• Worked as a UI developer using AngularJS, HTML5, CSS3, D3.js, JavaScript, XML, JSON, AJAX, Bootstrap, GIT.
• Worked on Angular Bootstrap for templates designing and to create mockup data.
• Used Rest angular, Promise and Services in AngularJS for calling API's and build some custom directives.
• Involved in fixing cross-browser issues and unit testing.
• Involved in web designing using HTML, XHTML, CSS, JavaScript and table Less Design in CSS for positioning.
• Performed Client-Side validations using JavaScript, AngularJS and used CSS preprocessor LESS and WEB Essentials for converting LESS to CSS file while deployment.
• Developed CSS3 style sheets to give gradient effects. Developed page layouts, navigation, icons and used D3.JS to create new nodes for incoming data and remove outgoing nodes that are no longer needed.
• Contributed and developed Servlets and JSPs based on MVC pattern using Struts and Spring Framework.
• Developed administrative & rich user interfaces using JSP, JSF, AJAX, XSLT, JavaScript, spring and Hibernate.
• Improved dependency injection for modular development and component isolation using AngularJS.
• Made routing solution problems easy and extensible to solve using Angular.
• Used AngularJS for rich Used Ajax to create pagination and with client-side events like quick search.
• Designated UI architecture for internal web application & worked with designers to construct UI using AngularJS
• Worked on JSON/XML data and carried out JSON/XML parsing for form submissions and DOM manipulation.
• Experience in working with Restful Web Service for RPC integration style.
• Used MAVEN to frame the deployable jar and war artifacts from source code and Integrated Maven with GIT.
• Wrote AngularJS frontend, queried a custom Elasticsearch server for search terms, and hosted everything on an AWS instance with Docker containers.
• Planning, deploying, monitoring, and maintaining Amazon AWS cloud infrastructure consisting of multiple EC2 nodes and VMWare VM's as required in the environment.
• Automated the cloud deployments using chef, python (Boto & fabric), AWS Cloud Formation Templates.

Environment: Java, Agile, HTML5, CSS, JSP, Ajax, Angular 6, Spring 4.0, Hibernate 5.0, RESTful, XML, JavaScript, DB, SQL, JSON, JMeter, Bootstrap, Apache tomcat, Sybase, Clearcase8.0, Oracle 11g/12i, GIT, Maven, Jenkins, Docker,Kuberneets, AWS.

Java Developer

Confidential

Responsibilities:

• Created and Maintained open-source Java Server Faces (JSF) by using Apache MyFaces.
• Developed domain monitoring java class using JMX to collect JDBC, JVM, and Executed Queue statistics for Managed Servers.
• Developed critical components of the application including Spring forms, Spring controllers, JSP views, business & data logic components that include Hibernate Entities, Spring-Hibernate DAO and Spring models following MVC architecture.
• Designed and developed RESTful Web Services using Spring Boot.
• Developed the App using Spring, JSP, HTML, CSS, JavaScript and Servlets Deployed the application in Tomcat.
• Worked on Typescript and Core JavaScript including ES5 and ES6.
• Used AJAX, JSON with jQuery for request data and response processing.
• Involved in estimation and implementing the requested change on top of the existing application.
• Created utility Java components and integrated them using spring framework for Hibernate Object-Relational persistence.
• Used Spring Framework for Dependency injection.
• Developed the Business Logic using Plain Old Java Objects (POJOs).
• Written Spring components like Controller, Validator, Resource Mapping, Session Attribute, and Model Attributes using annotations and used URL mapping to handle the requests and present clients to customized view by using different view templates
• Wrote SQL queries and Stored Procedures for Data Access Objects (DAO) and executed using hibernate.
• Involved in writing, complex queries, mapping persistent classes and managing the mapping files.
• Used Oracle database in developing project & used SQL statements and procedures to fetch the data from DB.
• Extensively used Annotations, Mappings and querying the database using Hibernate.
• Used ANT scripts for automated deployment and preparing the build of the entire application.
• Used GIT for versioning and used Log4j logging framework to debug the code.
• Involved in design, writing LLD and test strategy and developed application using agile technology.
• Engaged in developing the UI by using HTML, jQuery, React and JavaScript and used AJAX to make calls to other services. Created modules and web components and coupled them together into a functional app.

Environment: Spring 3, Hibernate, J2EE, REST, Oracle 11g, JSP, JSF, jQuery, CSS, HTML, Eclipse, Linux, SQL, POJOs, DAO, Log4j, ANT, GIT, Junit, JavaScript, React.js, Tomcat Application server 8.0, JMS, JDK 1.8, JSF, AJAX.

Java/J2EE Developer

Confidential

Responsibilities:

• Designed and developed the Application based on Model-View-Controller architecture using Spring MVC, Servlet and JSP.
• Involved in analysis, design, Coding, development and Implementation phase of the modules
• Created new features and exposure to new Java Script updates in ES6
• Involved in technical design and the architecture discussions.
• Coordinated with team members in gathering system requirements and specifications required for the redesign.
• Helped the project team to identify the suitable technology tools required for the projects.
• Created external XML documents and wrote SQL Queries to interact with Oracle database.
• Worked on JAVA J2EE team and designing DAO interface and implementation.
• Involved in Bug Fixing in the production and carried out Unit Testing for the developed functionalities.
• Involved in Developing User Interfaces using HTML and JSP's.
• Developed and published web-services using WSDL, SOAP and XML, Jax-B.
• Implemented Web-Services to integrate between different applications (internal and third-party components using SOAP and RESTFUL services using Apache-CXF.
• Developed web pages with JSP and Servlets using HTML, JavaScript, AJAX, and XML.
• Used SVN tool for version control and management and Apache Ant as the software build tool.

Environment: Java, J2EE, HTML, MVC, JavaScript, ES6, JSP, Servlets, SOAP, RESTful, WSDL, CSS, UML, XML, HTTP, Eclipse, MVC, AJAX, Apache Ant, SVN, SQL, Oracle.