NAME : Shilpa

Email: adwrkm@r.postjobfree.com

PH: 346-***-****

Sr. Java/j2ee Aws Developer

PROFESSIONAL SUMMARY:

Around 9.5+ years of strong IT experience, extensively in areas of enterprise & web application development involving system architecture, design, development and maintenance of enterprise level applications under Health, Financial Services and Retail domains

Extensive experience in Amazon Web Services like EC2, Simple DB, RDS, Elastic Load Balancing, SQS, SNS, AWS Identity and access management, AWS Cloud Watch, Elastic Beanstalk and Cloud Front, Redshift.

Experience involving configuring S3 versioning and lifecycle policies to and backup files and archive files in glacier.

Worked on many custom modules and widgets using React JS/CSS/HTML and made those cross-browsers consistent.

Hands on experience in AWS infrastructure on various resources IAM, EBS, Security Group and Auto Scaling in Cloud Formation JSON templates and some internet technologies including TCP/IP and HTTP.

Created Amazon VPC to create public - facing subnet for web servers with internet access, backend databases & application servers in a private-facing subnet with no Internet access.

Experience in developing modern web applications using Angular 10/11, s.js, React.js, Express.js Vue Js and Mongo DB.

Expert in Angular JS, Worked on Angular JS features like Two Way Binding, Custom Directives, Controllers, Filters, Services and Project Architecture, React JS features like Components, Lifecycle methods, and unidirectional data flow using the Flux Architecture.

Having good knowledge in NOSQL data bases like Dynamo DB, Cassandra. Setting up and administering DNS system in AWS cloud using Route53.

Experienced in working with big data technologies like Spark Core, Spark Hql, Spark -Streaming, Kafka.

Experience in apache Hadoop for storage part in HDFS (Hadoop Distributed File System).

Extensive experience in design and development of J2EE applications using Core Java, Java Collections, Data Structures, Multithreading, JDBC, Servlets, JSP, EJB, AJAX, JMS Custom Tag Libraries, JSTL, XML and Web Services.

Worked with NOSQL database to store JSON like dynamic connections data.

Expertise in using various open source frameworks like Struts and ORM Technologies like Hibernate and My Baits.

Installed, Configured and Managed Docker Containers, Docker Images for Web Servers and Applications servers such as Apache, Tomcat using Docker and integrated with Amazon MySQL RDS database.

Experience in Spring Framework such as Spring IOC, Spring DAO, Spring ORM, Spring Resources, Spring JDBC, Spring wicket, Micro-Services.

Expertise in developing GUI using Web-Development technologies like HTML, DHTML, DOJO, JavaScript, CSS, HTML5, Angular JS, Node JS, Bootstrap, Spring boot, JSF and jQuery.

Experience on SOA and Web Services like SOAP (JAX-WS) & REST (JAX-RS) using different frameworks like Apache Axis2, Spring-WS, Apache CXF and Jersey.

Extensive experience of using IDE tools Eclipse 3.2, Netbeans7.1.2, IntelliJ IDEA for JAVA/J2EEApplication development.

Worked with NOSQL database to store JSON like dynamic connections data.

Experience in working on web servers like Apache and application servers like Web logic, Tomcat, Websphere to deploy code.

Expertise in working on Node.js Fundamentals including Modules, Callbacks, Events, Streams and Error Handling by making use of its Core Features like Event-Driven, Single Threaded model and Non-Blocking I/ O model.

Good experience in JavaScript MVC frameworks Backbone.js, Angular.js, Angular 9,10,11 and React JS. Used Angular JS in developing single page applications.

Experience in Software Life Cycle Development (SDLC) process which incorporates Requirement Gathering, Analysis, Developing, Testing and implementing life cycle utilizing approaches like Agile, Scrum and Test Driven Development.

Experience in creating build scripts using Ant, Maven and Gradle tools. Extensive experience in implementation of the version control software SVN, CVS, Git.

Extensive experience in using databases such as IBM DB2, Oracle 11g/10g, SQL Server, PL/SQL and MySQL.

Proficient on different data sources ranging from flat files SQL Server, Apache spark, Oracle 11g/ PL/SQL Packages, Procedures, Functions, Triggers and other objects and apache Kafka.

Expertise in using and implementing design patterns such as Model-View-Control (MVC), Data Access Object (DAO), Service Locator Factory, Singleton & Business Delegate.

Performed unit testing using JUnit and Mockito aiding test driven Development in some scenarios.

Worked with RabbitMQ is used for Messaging for decoupling applications by separating sending and receiving data.

Installed, configured and administered Jenkins CI tool on AWS instances.

Used Log4J to capture the logs that include critical business related information.

Built Continuous Integration environment Jenkins and Continuous delivery environment. Worked with Docker container snapshots, attaching to a running container, managing containers, directory structures.

Good knowledge on chef cookbooks using the several components like attributes files, recipes, resources and templates.

Involved with the team of automation on Ansible playbooks, roles include statements, vars, modules, checkmode (dry run).

Experienced in development and troubleshooting Web based and enterprise based applications on Windows, UNIX and Linux platforms.

TECHNICAL SKILLS:

Operating Systems: UNIX, Linux 4.x/5.x/6.x/7.x, Windows (98, 2000, XP, Vista)

Web Technologies: Java Script, XML, HTML5, CSS 3.0, AJAX, DOJO, JQuery, DHtmlXGrid, GWT, JSON, FLEX Builder 3.0, cXML, XSLT, XHTML, Angular.JS, Bootstrap.

J2EE Technologies: Servlets, JSP, JDBC, JUNIT, JAXB, JMS, JNDI, JSTL, Tiles, SUN One LDAP, Apache Camel, ANT/Maven.

WebService Technologies: AXIS2, SOAP, WSDL, WADL, REST (JAX-RS).

Frameworks: MVC 1/2.0, Struts 1.x, 2.0, Spring, Hibernate 3.0, JPA.

Scripting Languages: JavaScript, JQuery.

Web/Application Servers: Apache Tomcat 7.0, WebLogic 10.3, Jboss4, WebSphere Glassfish.

Databases: Oracle10g, MYSQL, MSSQL, RDS.

IDE Tools: IntelliJ, Eclipse, J Builder, Velocity Studio.

Methodology: Water Fall, Agile, SCRUM, JBPM

Cloud Console Services: IAM, VPC, Snowball, SES, SNS, SWF, AWS SDK’S, Pinpoint, Elastic cache, Ops Works, code commit, code pipeline, config, Server migration, Amazon EMR, Redshift, storage Gateway, API Gateway, workflow.

Other Tools: TOAD, Log4J, MS-Office, Fish eye, JIRA, SQL Developer.

PROFESSIONAL EXPERIENCE:

Client: T-Mobile, Seattle, WA Duration: OCT ’2021 to Present

Sr. Java/AWS Developer

Responsibilities:

Involved in developing components on Reporting Dashboard with Spring MVC, Spring boot, Spring Framework and Hibernate.

Worked as part of Micro-services team to develop and deliver Maven projects to deploy on Tomcat.

Restful endpoints are created for UI and other services to consume.

API contracts are documented and rendered using Swagger for QA and BA teams to view.

Used Apache Camel for generating routes for Merchant Portal Micro-services where merchant employees can login and admins can manage employees.

Better Understanding the existing application, Business processes and Security Module. Designed Security module to support implemented custom.

Used NOSQL database like AWS Dynamo db. And S3 for data persistence.

Developed the responsive web using the React JS Bootstrap to build grids, layout and components.

Developed session EJB and message driven bean (MDB) to process JMS XML messages.

Involved in developing JUNIT Test Cases to validate the type of data in the XML Files. Used Log4J for logging and tracing the messages.

Used Druid for ingesting the event data from log files and analysis.

Hands on experience on REST based web services using JAX-RS library. Customized Restful Web Service using Spring Restful API, sending JSON format data packets between front-end and middle-tier controller.

Used Maven tool to build and packaged, deploy an application project and integrated with Jenkins.

Implemented modules using Core Java APIs, Java collection, Java 8(Streams), multi-threading, and object-oriented designs.

Implemented the ReactJS lifecycle methods Wif the latest ES 6 features using Babel and webpack.

Hands on experience using Apache Tomcat as application servers to handle the deployments of different applications.

Installed and configured Elasticsearch with logstash ship of logs of three

Wrote AngularJS frontend, which queried a custom Elasticsearch server for search terms, and hosted everything on an AWS instance with Docker containers

Developed code in Java which creates mapping in Elasticsearch

Developed Core Service as maven jar that can be included by other Micro-services as their maven dependency.

Developed the Intranet Responsive website using ReactJS.

Core service uses the main database and the other Micro-services use their individual databases to access and store data.

Using Docker containers for local and cloud-based development.

Created Server instances on AWS. Tomcat, Swagger and hawtio are installed and used for deploying Micro-services.

Performed configuration, deployment and support of cloud services including Amazon Web Services.

Experience on AWS Deploying, managing and operating scalable, highly available, and fault tolerant systems and managed continuous delivery systems and methodologies on AWS.

Worked on the prod deployment of React JS in Amazon webservices and experienced in solving the issues during the deployment.

Experience on practical implementation of cloud-specific AWS technologies including IAM, MFA, Elastic Compute Cloud (EC2), Simple Storage Services (S3), Route 53, Cloud Formation, Elastic Bean Stalk, Virtual Private Cloud (VPC), RDS and Cloud Watch.

Involved in maintaining the user accounts (IAM), RDS, Route 53 services in AWS Cloud.

Experience on Cloud Formation template stacks to automate for building new VPC’s using JSON files.

Created Snapshots and Amazon Machine Images (AMI’s) of EC2 Instance for snapshots and creating clone instances.

Secured APIs using OAuth2 provider KeyCloak.

Authentication is provided by KeyCloak and authorization is done using KeyCloak adapters to read User Principle and the roles.

AWS S3 is used to store customer’s monthly credit statements.

Connecting Apache Druid to kafka for performing analytics.

Apache Camel’s AWS component is used to upload documents to S3.

Employees are authenticated using Active directory and end user passwords are stored in Open LDAP.

Used Jenkins for building, creating snapshots and deploying on servers.

Used JIRA for project management. Epics, tasks and subtasks are created to track the progress.

Created Spring MVC components like Dispatch Servlets, configure Request mapping annotation controllers, view resolver components.

Hands on experience of multiple AWS accounts with multiple VPC’s for both production and non-production where primary objectives included automation, build out, integration and cost control.

Experience on setting up and configuring AWS’s EMR Clusters and used Amazon IAM to grant fine-grained access to AWS resources to users.

Involved in creating tables and worked on My SQL and PL/SQL to write Stored Procedures functions and packages for complex Inserts and updates in the database. And used Stored Procedures in the application.

Involved in Stored Procedures, User Defined functions, Views and implemented the Error Handling in the Stored Procedures and SQL objects and Modified already existing stored procedures, triggers, views, indexes depending on the requirement.

Configured and maintained Jenkins to implement the CI/CD pipeline

Implemented CI/CD pipeline using Jenkins and extensively worked for End-to-End automation for all build and deployments.

Installed, Configured and Managed Docker Containers, Docker Images for Web Servers and Applications servers such as Apache, Tomcat using Docker and integrated with Amazon MySQL RDS database. Experienced and proficient deploying and administering GIT.

Involved in the creation of interface to manage user menu and Bulk update of Attributes using AngularJS, Express JS and JQuery.

Environment: Java 1.8, Angular JS, Bootstrap 3.3, Spring 4.0, Spring boot, Web Services (RESTFUL & SOAP), Oracle 11g, DB2, Hibernate 4.2, SQL, Apache CXF, MVC, Jersey, KeyCloak, JSON, JAXB, Unix, Linux, Log4j, NOSQL, STS, Mockito, Apache Tomcat, Maven 3.0, Jenkins, GitHub, JIRA, EC2, S3, VPC, Redshift, Druid, SQS, SNS, SWF, IAM, EMR, Cloud watch, React JS, AWS Lambda.

Client: Marathon Petroleum Corporation, Findlay, OH January 2020 to Septmber2021

Sr. Java/J2EE AWS Developer

Responsibilities:

Experience on modifying the existing Backend code for different level of enhancements.

Involved in J2EE patterns MVC, Dependency Injection (DI), Inversion of Control (IOC), Data Access Object(DAO), Business Delegate, Service Locator and Singleton for the enterprise application.

Developed test cases and performed unit testing using JUNIT Test case.

Developed different JavaBeans and helper classes to support Server Side programs.

Experienced in the architecture, design and development of high traffic application built in Java/J2EE using MVC architecture integrating spring, Hibernate and Struts frameworks in SOA.

Used spring as an application framework to build the Services layer and implemented its core modules such as Spring Core Container, Inversion of Control, Data Access and MVC and Used XML/java /annotation spring boot configurations.

Utilized Cassandra, NOSQL database management system for keeping user generated data.

Experienced in deploying the SPA React JS in AWS S3 BUCKET and Route S3 and through CLI configuration

Implemented ORM (Object Relational Mapping) framework with Hibernate for mapping Java classes and database tables.

Designing and implementing scalable, Restful and micro services-based mobile back-end. The back-end is being written in Java using Spring Boot for simplicity and scalability.

Experienced in coding Web Services with JAX-WS (SOAP) and JAX-RS (Restful). Used Apache Tomcat as application servers to handle the deployments of different applications.

Hands on experience on GitHub as Version control for code repository and Jenkins for continuous integration.

Performed functional, regression and UAT testing for Siebel CRM application comprised of email marketing, web marketing, Loyalty management.

Experienced with security groups, network ACLs, Internet Gateways, and Elastic IP's to ensure a safe area for organization in AWS public and private cloud.

Hands on experience on elastic load-balancers (ELB) for different applications to provide high performance of applications.

Experience on Route53 to manage DNS zones and assign public DNS names to elastic load balancers IP’s.

Hands on experience on creating auto-scaling groups based on memory and CPU usage to handle excessive or under use workload without needing manual interference.

Build scripts on AWS cloud for scheduling EC2 auto scaling load balancer with python SDK.

Good experience with Dynamo DB and Redshift, Lambda.

Documented the requirements including the available code which should be implemented using Spark, Hive, HDFS, HBase and Elasticsearch.

Developed a Spark job in Java which indexes data into Elasticsearch from external Hive Tab Administer CI/CD(Jenkins) tools stack administration and maintenance

Configure Jenkins OC Masters/Slaves in both Unix and windows platforms

Worked on micro services project- to build docker containers and deploy to Dev, iText, Scale, UAT (SIT), PROD

Enhance SDLC cycle by using Docker containers delivered with Openshift for web application deployment.

Good understanding of OpenShift platform in managing Docker containers and Kubernetes Clusters.

Performed Migration test and use cases for applications to AWS cloud with public and private IP ranges to accelerate development productivity by decreasing test-run times.

Experience on Amazon IAM service enabled to grant permissions and resources to users. Managed roles and permissions of users with the help of AWS IAM and also involved in developing the Web services using AXIS2 framework.

Worked closely with Testing team for issue fixing and coordinating test set up for testing

Created detailed design document, use cases, sequence and class UML diagrams using Rational Rose.

Environment: Java 1.6, Spring 3.0, RESTful Web Services, hibernate 4.0, Java, J2EE, JSP, AJAX, HTML, Java Script, spring, Maven, Amazon web Services, spring boot, ActiveMQ, Hibernate, Eclipse, React JS, XML, XSD, JDK 1.5, JMS, Tomcat 5.0, Unix, Maven and SVN, AWS, EBS, Elastic Load Balancer, Route 53, VPC, NOSQL, cloud watch, cloud trail, code deploy, Auto scaling, IAM, EC2, Dynamo DB.

Client: CVS Health, providence, RI Aug 2017 to December 2019

Sr. Java/J2EE Developer

Responsibilities:

Involved in phases of Software Development Life Cycle, interface design, configuration of framework, QA and documentation, maintenance.

Good experience in building multi-threaded Java server side applications and frameworks.

Used Spring IOC (Inversion of Control) to remove the object Dependencies across the application.

Implemented Singleton, MVC, Data Transfer Objects and Data Access Objects design patterns.

Extensive use of JDBC to communicate to the Database for storing and retrieval of information

Experience on Log4j to print the logging, debugging, warning, info on the server console.

Involved in SVN version controls to check in/out files, etc. also responsible for branching, merging the branch to main using Tortoise SVN tool.

Used Bootstrap and AngularJS, React.js and Node.js in effective web design.

Used data modelling for creating a data model by applying formal data modelling techniques.

Developed back-end logic with Core Java using technologies including Collection Framework, Multi-Threading, Exception Handling, Generics and Annotation.

Experience in application servers like Tomcat locally and Web logic to host it on the Linux server.

Used Maven to build, run and create JARs and WAR files among other uses.

Enhanced user interfaces to enable input of additional personal information for the purpose of plan generation using CSS, HTML, HTML5, DOJO, JavaScript, AJAX, and Angular JS.

Experience in design and develop XML processing components for dynamic menus on the applications.

Hands on experience in usage of Hibernate, object/relational-mapping (ORM) solution technique, to map data representation from MVC model and Oracle Relational Data Model with a SQL-based schema.

Implemented customized authentication in Spring Security to verify user-role and secure the user pages, such as login, admin/user operations, trading, portfolio, etc.

Customized Restful Web Service using Spring Restful API, sending JSON format data packets between front-end and middle-tier controller.

Designed JSP pages for Initial applications, Submissions and Maintenance Involved in implementing Message Driven Beans using for JMS systems.

Developed session EJB and message driven bean (MDB) to process JMS XML messages.

Performed code review and unit tested the application using JUnit framework.

Extensive experience with Agile Team Development and Test Driven Development using JIRA.

Environment: Java, JDK 1.8, Core Java, Web Sphere Application Server, JSON, XML, Clear case, JIRA, RESTFUL web services, Spring MVC, Spring IOC, JAX-RS, Collections, ReactJS, Maven, JDBC, DB2, Log4j, JUnit, JMock.

Client: Abbvie, Vernon Hills, IL April 2015 to Jun 2017

Java/J2EE Developer

Responsibilities:

Involved in the creation of UI specification documents by interacting with business users and design documentation and data modelling for the entire project.

Frontend validations are performed using JavaScript, server side validations are performed in Struts.

Used Struts Tag Libraries, JSPs, HTML, JavaScript, DOJO and CSS to develop the frontend UI, certain shopping cart features are developed using Angular.js.

Involved in the architecture, design and development of high traffic application built in Java/J2EE using MVC architecture integrating spring, Hibernate and Struts frameworks in SOA.

Used struts validation framework to perform Server side validations.

Involved in the creation of data model and data dictionary during the application design phase.

Implemented ORM with HIBERNATE to make the Persistence class objects interact with numerous SQL Server tables spanned across various schemas as per MODOC standards.

Defined multiple Data sources on the server side to be used in applications with JNDI.

Entire Application was developed in Eclipse. GWT plug-in is used for browser testing and compatibility of AJAX and JQuery components along with JUnit. Agile Methodology is used to develop the application, involved in daily SCRUM meetings to discuss the status and progress of individual Sprints and was mainly interacting with the business users for data migration and testing the application.

Experience on Test/Prod environment for continuous build and deployments in Jenkins.

Involved in Local deployment and testing was performed in JBoss while final Testing, Stage and Production versions are deployed on the WebSphere Server.

Performed various business services are exposed as Restful Web Services to the external clients during the Service Oriented Architecture (SOA) implementation.

Experience on Apache Ant as build tool to automate the build process for the entire application.

Experience on SVN repositories for version controlling, and Log4J is used for Logging Errors, Exceptions.

Involved in integrating applications with other application using IBM WebSphere.

Good knowledge on automated data loading using SSIS package to fetch, load and parse data from various external sources such spreadsheets and flat files from DB2 in to SQL Server Database.

Involved in development, performance testing & defects fixing, also followed an Issue Tracker to log the issues and fixes applied daily to streamline the application development.

Implementing FIX connectivity to majority of the traded exchanges (NYSE, LSE, CBOT etc.) and brokers via various FIX network such as SunGard, Radianz, Bloomberg (EMSX), Fidessa etc. using FIX Protocol (Version 4.2 and above).

Managed the FIX initiative for the FXall & Accelor ECN for Foreign Exchange Trading.

Designed and authored the FIX interface specification for the FXall ECN. Worked with clients to determine the requirements for order and execution message flows and the overall messaging architecture.

Used GIT controls to track and maintain the different version of the project.

Environment: Java, J2EE, Struts 1.x, Spring boot, Hibernate 3.0, MS SQL Server 2008, SOA, cXML, JSP, Eclipse, GWT, JUnit, WebSphere 6.0, JBoss 4.x, DB2, GIT, IBM web sphere, SVN, Log4j, Jenkins, JQuery, Glassfish, AJAX, DOJO, Backbone JS, JQuery, AJAX, JSON, GIT, Scrum, Apache Ant.

Client: ZenQ Technologies, India July 2013 to December 2014

Java Developer

Responsibilities:

Involved in preparation of functional definition documents and Involved in the discussions with business users, testing team to finalize the technical design documents.

Created business logic and application in Struts Framework using JSP, and Servlets.

Worked on implementation of MVC pattern by using its Custom Tag Library, UI Components, Server-side Helper Classes, Valuators, Event Handlers and Navigation Handlers.

Involved in developing JSP pages for the web tier and validating the client data using JavaScript.

Developed web application using Spring MVC framework.

Used Spring DAO concept in order to interact with database (DB2) using JDBC template.

Proficient in Core Java concepts like Collections, Multithreading, Data Structures, Serialization, and JavaBeans.

Developed XML documents and generated XSL files for Payment Transaction and Reserve Transaction systems.

Wrote unit test cases for different modules and resolved the test findings.

Implemented SOAP using Web services to communicate with other systems.

Developed JDBC code for backend processing.

Used Subversion for version control and log4j for logging errors.

Involved in writing test cases for testing functional specification and for unit testing

Wrote Oracle PL/SQL Stored procedures, triggers.

Helped production support team to solve trouble reports.

Interacted with testing team to fix defects.

Environment: Java, J2EE, Struts, JSP, JDBC, Servlets, JavaScript, JUnit, Hibernate, WebLogic, Log4j, Maven, CVS, PL/SQL, Oracle, Windows, Linux, Net Beans, Apache Tomcat, SVN, DB2, MVC.

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