SUMMARY

• More than 8 years of professional experience in Cross - Platform (Web & Client-Server) application development and design using Object-Oriented Programming, Java/J2EE technologies.
• Expert in various Agile methodologies like Scrum, Test Driven Development (TDD), Incremental and Iteration methodology, Pair Programming, Agile Development Testing using Software Development Life Cycle.
• Strong experience in UI frameworks JavaScript, React JS, Angular 2+ and Angular JS.
• Experience in building applications using various frameworks like spring, Hibernate, EJB, JPA.
• Strong experience in Spring modules - Spring MVC, IOC, AOP, JDBC, JTA, IO, Spring Boot, Spring Micro services, Spring REST, Spring Eureka, Spring Ribbon, Spring Netflix, Spring Zuul.
• Strong experience in Securing API's using OAuth2.0 token-based authentication/authorization scheme using Spring Security.
• Strong experience on Microservice patterns - Hystrix, Aggregator, Proxy chaining.
• Experience in JMS over messaging to exchange the information in more reliable and asynchronous way in enterprise applications and used Apache Kafka, Active MQ, Rabbit MQ, AMQP as JMS provider.
• Experience in handling messaging services using Apache Kafka.
• Tested Restful web services using Postman, SOAP UI.
• Experience with Spring JDBC Templates, JMS Templates, Spring EAI, Spring Rest Templates.
• Experience in implementing SOA and Web Services using SOAP, RESTFUL, JAX-WS, and AXIS.
• Implemented various Design Patterns (Session Façade, Value Object, DAO, DTO, Command, Singleton, Factory, Adapter, MVC, Service Locator etc.) using J2EE technologies.
• Sound Experience in database modelling, design and development of PL/SQL stored procedures, packages in relational databases: Oracle 10g/11g, IBM DB2, MySQL, and SQL Server.
• Strong Knowledge on NOSQL database MongoDB, Cassandra as part of Open Source participation.
• Experience in JMS over messaging to exchange the information in more reliable and asynchronous way in enterprise Applications. Used Apache Active MQ, Rabbit MQ, and AMQP as JMS provider.
• Experience in handling messaging services using Apache Kafka.
• Experience in writing unit test cases using JUnit, Testing, Mockito and Wrote JUnit Test Cases for challenging environments.
• Expertise in using Amazon Web Services AWS. Extensive experience in focusing on services like EC2, VPC, Cloud Watch, Cloud Front, IAM, S3, Amazon RDS, Elastic Cache, SNS, SQS.
• Experience with Docker containers, AMI's to create Docker images/ containers and Kubernetes container orchestration system.
• Strong Experience with build tools like CI/CD, ANT, Maven, and logging tools like Log4J.
• Used Version Control like CVS, SVN (Subversion) and Git.
• Strong Experience in Maven for build, Jenkins and SonarQube continuous integration.
• Experienced in writing unit test cases using Junit, Testing, Mockito and Wrote JUnit Test Cases for challenging environments.
• Strong experience in test driven development, particularly using JUnit framework.
• Worked on various testing frameworks for front end/user interface like Karma, Jasmine, Jest, Mocha, Chai etc.
• Good Experience in Automation testing using Rest Assured framework and Selenium Web Driver.
• Expertise in Hibernate, Spring, EJB (Entity Session Message Driven Bean), Ajax, Java Beans, JNDI, JMS, Java Mail, XML, Sockets using IDE’s like Eclipse.
• Good working knowledge of AWS, Spring Boot, Spring Cloud, Docker, Maven, etc. in developing applications which use cloud-based services.
• Good working knowledge in version control tools like GitHub, CVS, SVN, Rational Clear Case and Tortoise SVN.
• Experience in Developed Maven & ANT scripts in to build and deploy J2EE Applications.
• Experience in using Web/Application Servers like IBM WebSphere 7.0, Apache Tomcat and JBoss, BEA WebLogic.
• Experience using tools like JIRA, Confluence.

TECHNICAL SKILLS

Programming Languages: Java/J2EE, C, C++, SQL, PL/SQL, Python

Java APIs: J2EE, EJB, Servlets, JSP, JSTL, Custom Tag Libraries, JAX-RPC, JDBC, JNDI, JMS, JAXB, JUnit, Mockito, AWT, Spring MVC, Hibernate, Spring AOP, Spring DAO, Spring Core, Spring Security, Spring REST, Spring Boot, JPA, Log4j, Apache Kafka.

Frameworks: Spring, Hibernate, MEAN Stack

Scripting Languages: JavaScript, TypeScript, jQuery

Web Technologies: HTML/HTML5, XML, CSS/CSS3, Bootstrap, JSP, Ajax, NodeJS, Express, ReactJS, AngularJS, Angular 2.0 and above

Web/Application Servers: Apache Tomcat, WebSphere, WebLogic, JBoss

IDE’s: Visual Studio Code, Eclipse, STS, NetBeans, IntelliJ, IBM RAD, WSAD

Databases: Oracle, MySQL, NoSQL, MongoDB

Operating Systems: Windows, MacOS, Unix, Linux (Ubuntu, Red Hat)

Version Control: CVS, Clear Case, SVN, GitHub, Bitbucket

Methodologies: Agile, Waterfall

Other Software Tools: MS Office, Visio, Adobe Photoshop, HPALM, JIRA

Build Tools: Maven, Gradle, Ant

PROFESSIONAL EXPERIENCE

Full Stack Sr. Java Developer

Confidential, St.Louis, MO

Responsibilities:

• Migrated existing Monolithic architecture to full-fledged Microservices architecture using Spring Boot & Spring Cloud in multiple stages.
• Implemented cloud native applications using Spring Cloud to take the advantages of cloud ecosystem.
• Designed GUI using JavaScript, Bootstrap, HTML5, DOM, XHTML, AJAX, CSS3, jQuery and Angular 7.
• Developed powerful Single Page Application and dynamic responsive Web Application with Angular 7.
• Designed Angular 7 Template basics, Template directives, Routing and navigation, Components, Services and Data Binding.
• Implemented Core Java concepts like Multithreading, Collections, I/O, Generics, and Exception Handling for complex business requirements.
• Implemented Java 8 features such as lambda expressions, filters, and Parallel operations on collections for effective sorting mechanisms.
• Processed and stored data using Java 8 features like Streams & Lambda expressions and design Singleton, Data Access Objects, Factory and MVC design patterns.
• Implemented and enhanced java based multithreading ETL tool for distributed loading XML data into Oracle database using JPA/Hibernate.
• Developed microservices application using Spring Boot and test the application with Spring Boot.
• Used Spring MVC for developing Restful APIs (web services), Spring Boot for microservices & Spring Core annotations for Spring Dependency Injection.
• Implemented POJO’s & DAO’s for the database entities using Spring JDBC annotation mappings.
• Implemented the authentication and authorization of the application using Spring Security and OAuth2.
• Worked on Swagger API and auto-generated documentation for all REST calls.
• Implemented persistence layer using Spring JDBC template to store the data in Oracle database.
• Involved in maintaining and updating the procedure for ETL process.
• Used Oracle as database and Involved in the development of PL/SQL backend implementation and using SQL created CRUD, Views, Joins, Indexes, and Procedures statements.
• Experienced in writing real-time processing and core jobs using Spark Streaming with Kafka as a data pipe-line system.
• Implemented spring boot microservices to process the messages into the Kafka cluster setup.
• Developed Mockito and JUnit test cases to improve code coverage.
• Developed and performed test cases using Jasmine and Karma for front end unit testing and used the Cucumber, Protractor and Http-server for the end to end testing.
• Created JSON request and validated the response using postman Interceptor and Swagger UI.
• Setup CI/CD pipeline process for the application using the Jenkins.
• Changing the AWS infrastructure Elastic Beanstalk to Docker with Kubernetes.
• Moving existing monolithic architecture to microservices and migrating them to AWS cloud.
• Used AWS Services platform to upload data into AWSS3 buckets and creating EC2 instances.
• Apache Maven tool has been used for the build and deployment of the application.
• Monitored the Error logs using Log4j and fixed the problems.

Environment: Java 8.0, Spring 4, Hibernate 4.2, Spring batch, Spring Boot, Spring Security, JPA, JMS, HTML5, CSS3,Angular 7, Cryptography, Eclipse, Oracle 10g, Swagger UI,AWS, Docker, Log4j, JIRA, Pure XML, Web Services, Kafka, Microservices, REST UI, Apache Spark.

Full Stack Sr. Java Developer

Confidential, Fort Lauderdale, FL

Responsibilities:

• Understand and adopt Microservices architecture to gradually replace a core monolithic application to Microservices.
• Actively participated in the Analysis, Design, Development and Testing phases of various modules.
• Expertise inspring based microservices, and enabled discovery using Eureka Server.
• Designed and developedRESTful Web Services using Spring Boot.
• Developed server-side application to interact with database usingSpring BootandHibernate.
• DevelopedRESTfulServices with Java using JAX-RS, Jersey and Spring Boot.
• Coding for consuming theREST APIs, getting JSON response and parsing them to get the required formats.
• Developed user interface by using the React JS, Flux for SPA development.
• Implemented React JS code to handle cross browser compatibility issues in Mozella, IE 7, 8, 9, Safari and FF.
• Used React-Router to turn application into Single Page Application.
• Implemented stableReactcomponentsandstand-alone functionsto be added to any future pages.
• Worked in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept.
• Developed modules using Core Java APIs, Collections, Java 1.8 (Streams), Jordan API (Dates), Multi-threading, Exception Handling, Generics, Enums, Java I/O and object-oriented designs patterns.
• Used Hibernate and Mark Logic, writing service methods and SQL queries to interact with the MySQL DBMS.
• Managed Eureka Client, Eureka Server, Eureka Instance, Eureka Service through Spring Boot.
• Expertise in implementing Microservices Architecture using Boot Application, Eureka Discovery Service, Eureka Client, REST, SOAP, JPA, Hibernate.
• Deploy the application on Amazon Web services (AWS).
• Use Amazon Cloud Watch to monitor AWS services & Amazon Cloud Watch logs to monitor the application.
• Installed application on AWS EC2 instances and configured the storage on S3 buckets.
• Co-ordinated with QA lead for development of test plan, Test management and defect management.
• Hands-on experience in using message brokers such as ActiveMQ and RabbitMQ.
• Integrating various Version control tools, build tools and deployment methodologies into Jenkins to create an end to end orchestration build cycles.
• Used Jenkins to execute the Maven project as well to build the version system tool.
• Maintained and managed cloud & test environments and automation for QA, Product Management and Product Support.
• Developed JUnit test cases for Persistence layer and Business layer to perform the unit level testing.
• Configured Log4j for adding the debugging information in the code base.
• Used SVN for version control.
• Involved in Agile stand up meetings throughout the project with team members on day to day basis for the update on project status using JIRA and HP ALM.

Environment: Java 8.0, Spring 4, Hibernate 4.2, Spring Batch, Spring Boot, JPA, JavaScript, React JS, HTML5, CSS3, Eclipse, Drools, JBPM, MySQL, ILOG, log4j, Junit, AWS, TestNG, TypeScript, Selenium, Easy Mock, RabbitMQ, XML, Web Services, SOAP UI.

Full Stack Sr. Java Developer

Confidential

Responsibilities:

• Involved in Requirements gathering, Analysis, Design, Development and Testing of application using AGILE methodology (SCRUM) in a test-driven development (TDD) approach.
• Developed and designed the web interface using HTML5, CSS3, JavaScript, jQuery, Angular 2 and Bootstrap.
• Built Components using Angular 2 and worked on Angular directives. Implemented lazy loading and Dynamic loading in the Angular routers. Worked on Typescript for building the code.
• Developed prototype and project layout skeletons using Angular 2, jQuery, HTML5, and CSS3.
• Used various jQuery and Bootstrap plug-in like date picker, Bootstrap selectors.
• Implemented Microservices into existing system architecture. Developed Microservices business components and RESTful service endpoints using Spring Boot.
• Developed multiple enterprise applications using Spring Boot, Hibernate framework, Spring IOC, Spring MVC, Spring JDBC, Spring Annotations, Spring AOP, Spring Integration, frameworks, RESTful webservices.
• Implemented authentication and authorization for the application using Spring Security and Oauth2.
• Worked on Java 8 Lambda expressions and Pipelines, Streams.
• Worked on some of the new features ofAngular 2like new if else syntax, ng-templates, and form validators.
• Used Python and Django to interface with the jQuery UI and manage the storage and deletion of content.
• Worked on several Python packages.
• Implemented Spring IOC for Dependency Injection and to make the code loosely coupled and Spring AOP for logging purposes.
• Implemented SOAP based JAX-WS Web services interfaces for integrating multiple systems, code re-usability and consumed JMeter to test performance of SOAP protocol.
• Implemented RESTful web services which produces both XML and JSON files to perform tasks, RESTful web service using Jersey for JAX-RS implementation, which leveraged both web & mobile applications.
• Worked on creating, retrieving, updating and deleting documents in MongoDB.
• Configured JMS server setup, DB connection setup & deployed Returned items in Web Sphere Server.
• Setup the Continuous Integration (CI) & Continuous Development (CD) for the application using Jenkins.
• Worked on Jenkins for continuous integration with Gradle and GitHub.
• Used Log4j for validate functionalities and JUnit for unit testing.
• Implemented configured JIRA issue tracking software with Agile plug-in across all the company functions.
• Used IntelliJ IDEA IDE tool for application development.

Environment: Java 1.8, J2EE, HTML5, CSS3, JavaScript, jQuery, Angular 2, TypeScript, Bootstrap, Spring Boot, Spring IOC, Spring MVC, Log4j, SOAP, RESTful, Microservices Architecture, XML,, AWS, Mongo DB, CI/CD, Maven, IntelliJ IDE, JUnit, JMS, UNIX, Jenkins, JIRA, Log4j, Git.

Java Developer

Confidential

Responsibilities:

• Working on application architecture and re-design of different parts of the application.
• Working with Requirement leads and Project managers to translate business Requirements into technical specifications.
• Developed database persistence layer components for mapping an object-oriented domain model to the relational database using ORM framework such as Spring JDBC Support, Hibernate and JPA.
• Worked in Agile mode and interacted closely with the product owner and business team.
• Setup a new clear case project and ANT scripts and owned the deploy process.
• Built Single page application (SOA) using AngularJS as per the requirement.
• Optimize the cost of application development and maintenance by using economies of scale under a SLA governed process.
• Worked with Apache Lucene and SOLR for searching the person and business details.
• Design and development of the BPMfor various synchronous and asynchronous processes and to implement the workflow of the applications.
• Using SpringBoot which is radically faster in building MicroServices and develop spring based application with very less configuration.
• Written Stored Procedures, functions, SQL queries and backend programming using Oracle, SQL.
• Developed presentation tier web components using JSF framework and deployed the application in web server.
• Expertise in application development using JSP, Servlets, JDBC, JNDI, spring, Hibernate, Ibatis, Mybatis, JSF, EJB, XML, Web Services- SOAP, WSDL.
• Implemented MVC architecture using JSF framework using JSPs as GUI development and DB Modeling using NOSQL and Oracle 10g.
• Deployed and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using puppet.
• Performed client side validations using JavaScript and Struts validation framework.
• Performing Impact Analysis, Design, and Estimations for the enhancements to the applications.
• Impact Analysis, Design, and Estimations for the enhancements to the applications.
• Interacted with the business users to gather requirements and provided high-level design with Sequential and State-chart diagrams.
• Manage configuration of Web App and Deploy to AWS cloud server through Chef.
• Built workflow based applications using JBPM workflow engine and designed workflow in JBPM editor, use provided api's in JBPM engine to run business functions.
• Developed business processes/work flow and rules using JBoss BPM/Rules
• Implemented various J2EE design patterns like DAO pattern, Business Delegate, Value Object.
• Developed Business components and Services using EJB3.0, JPA and JAX-WS and deployed them in Business tier application server.
• Developed various Land registry office user interfaces, Model Beans and DAO using JSF Framework.
• Have written Unit Test Cases and Integration Test Cases using Junit framework.

Environment: Core Java, J2EE JSP, Servlets, JDBC, Collections, Generics, JUnit, Solar, Lucene, Struts, Spring, AWS, JBPM, Hibernate, Microservices, Eclipse, WebLogicApplication Server 5.0, UML, SQL, NOSQL, Oracle 10g, Agile, Maven, SVN, ClearQuest.

Java Developer

Confidential

Responsibilities:

• Developed the application as per the functional requirements from the analysts.
• Developed the client side validation using JavaScript.
• Developed web screens in Html and JSP.
• Design and Development of User Interface using Struts tag libraries.
• Responsible for client side validations and server side validations in JSP.
• Design and Development of server side modules using J2EE, spring, Struts, EJB and Utility classes.
• Used Web Services to extract and communicate the records using XML and REST.
• Installed and configured WebLogic in Development and Testing environment.
• Developed the transaction-oriented logic in the Data Access Layer.
• Designed, developed, debugged and tested the web based J2EE application.
• Used Log4J utility to log error, info and debug messages.
• Configured and deployed the J2EE application on WebLogic Application Server.
• Used the Transaction to persist the data in the Oracle.
• Used apache struts to develop the web-based components.
• Front end validations are written using JavaScript.
• Performed Unit Testing using JUnit.
• Provided a User Manual and User Training on the new system to ease them into the new system.

Environment: Java 1.5, J2EE, JSP, Servlets, Hibernate, Spring, Struts, PL/SQL, WebLogic Application Server, REST and SOAP Web services, UML, SVN, Log4J, Oracle, Unix.