Mohan S Email & Phone Number

Birmingham, Alabama, United States

• Worked on Amazon Web Services (AWS) for a multitude of applications utilizing the AWS stack such as EC2, VPC, Glacier, Route53, S3, RDS, Cloud Watch, Cloud Trial, WAF, SNS and IAM, focusing on high availability, fault tolerance, Load balancing and auto-scaling in designing, Deploying and configuring.• Identified usability and develop functional and smooth, easy-to-operate and eye-catching web applications using EXT JS, Angular JS and react JS.• Used Kibana Dashboards for the Application Monitoring and to retrieve the Concise and Console Logs. • Building POD utilizing Informatica to S3, ETL via Apache Spark/Hive/EMR, orchestration via Data Pipeline/ Lambda, and landing to Redshift. • Using ELK (elastic, Logstash and Kibana) stack for monitoring, reporting, creating dashboards for demonstration status of Application and status of the cases assigned.• Used Scala collection framework to store and process the complex employer information. Based on the offers setup for each client, the requests were post-processed and given offers. • Worked on core AWS services such as Setting up new server (EC2) instances/services in AWS, configuring security groups, and setting up Elastic IP's, auto-scaling, and Cloud Formation.• Guiding the scrum teams and larger organization on how to get the most out of Agile/Scrum practices.• Built centralized logging to enable better debugging using Elastic Search Logstash and Kibana. • Identifying the problem areas by using elastic search Kibana with Logstash to import .csv les. Using Solr over Lucene index provided a full text search for analysis and quantification. • Involved in the re-design and development enhancement e orts of production data migration from Matrix to Redshift Cloud database.• Involved in Designing and deploying AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups.• Configured Spark streaming to receive real time data from Kafka and store the stream data to HDFS using Scala.

Chicago, Illinois, United States

• Used Spring AOP for cross cutting concerns and IOC for dependency injection.• Worked on system logging using Elastic search, Kibana Logstash to create dashboards in Splunk and Kibana.• Developed Scala scripts, UDFFs using both Data frames/SQL and RDD/MapReduce in Spark 1.6 for Data Aggregation, queries and writing data back into OLTP system through Sqoop; And Developed enterprise application using Scala as well.• Developed Java Scripts to unload data from Redshift into Amazon S3 and create external Hive tables in Qubole.• Worked on a way to store the log messages in Cassandra which are managed by Hadoop and made available through Kibana for visualization.• Created reusable components used across various modules using React-JS, React-DOM, Bootstrap and JSX.• Used Backbone JS and React JS, React Libraries to create Controllers to handle events triggered by clients and send requests to server.• Designed, configured, and managed public/private cloud infrastructures using Amazon Web Services• (AWS), which includes VPC, EC2, S3, Cloud Front, ELB and Elastic Beanstalk.• Worked on developing CRUD applications using MERN stack (MongoDB, Express, ReactJS and NodeJS) and REST based API.• Helped the team in identifying the DIST key, SORT key and encoded type while designing the Redshift table• Collaborate with engineering team to standardize analytic methods and improve our analytics pipeline using redshift database and MongoDB.• Implemented Java Security manager to access EJB (Elastic JavaBeans) with Java Security API. Refactored Microservice to make it RESTful, thread-safe, and more configurable.• Developed UI components using HTML, CSS, JavaScript, jQuery, NodeJS, Backbone JS and AngularJS• Hands on experience in AWS provisioning and good knowledge of AWS services like EC2, S3.• Involved in implementation of JMS in order to exchange information over reliable channel in an asynchronous way by using Active MQ, Rabbit MQ as a message queue.

Dallas, Texas, United States

• Involved in complete software development life cycle with object oriented approach of clients business process and continuous client feedback.• Engaged in developing the UI by using HTML, JSF, jQuery, and JavaScript and in some places used AJAX to make calls to other services.• Involved in developing the CSS sheets for the UI Components.• Developed web based application using Spring framework for MVC architecture.• Setting up the basic project set-up from scratch of Spring-Hibernate App based on Design.• Used Spring Framework AOP Module to implement logging in the application to know the application status. Used Spring DAO Module along with Struts Framework 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.• Used Apache CXF to post messages to external vendor sites and exposed Web Services to other client applications.• Developed the Servlets for processing the data on the server.• Used SVN for version control.• Involved in development of REST Web Services using Spring MVC to extract client related data from databases and SOAPUI tool is used for testing RESTFUL API web services.• Wrote corresponding one-one REST methods to implement respective change requests (change appliers)• Created SOAP based web service using JAX-WS and tested service using SOAP UI.• Implemented the Web Service client for the login authentication, credit reports and applicant information using JAX-WS 2.0 and Apache Axis 2.• Tested REST services using google chrome’s POSTMAN plugin.• Deployed the application in JBoss Application Server.• Worked on Junit for creating test cases for all the Business Rules and the application code.• Called external vendor applications using Web Services for delivering notifications.

Pune, Maharashtra, India

• Collected requirements from Agents for documenting the requirements of Accounting module, claims module.• Implemented interceptors using Hibernate and build and release Spring framework.• Responsible developing Persistence classes using Spring JDBC Template frameworks to save data in database tables.• Involved in development of User Interface using XSLT, HTML, JavaScript, DOJO and JSTL.• Performed JavaScript Validations on the data submitted by the user.• Used JSON to transfer the request from the web page to the server.• Provided data persistence by object/relational mapping solution via Hibernate for application.• Worked on JPA for persisting the objects into the system.• Created services for various modules like Account Creation and Maintenance using Spring.• Lead the design of the new, single-page, Ajax-driven, HTML application.• Used Apache-Maven tool to build, configure, package and deploy an application project.• Worked on Axis implementation and used SOAP UI to test the SOAP.• Worked on XML, XSD and XSLT to parse the request and create the new one based on the specification.• Used ANT tool to build and deploy applications.• Generated the required XML les to transfer data between the server and the web pages.• Used Concurrent Versioning System (CVS) as a version controlling for the source code check in and check outs.• Used DOM parser for validating the XML les against their respective XML schemas.• XPATH expressions are used to extract data from the XML les.

Hyderabad, Telangana, India

• Developed SPA (Single Page Web Applications) using RESTFUL web services plus Ajax and Angular JS actions.• Participated in development of a well responsive single page application using AngularJS framework, JavaScript, and jQuery in conjunction with HTML5, CSS3 standards, with front-end UI team.• Build scripts on AWS cloud for scheduling EC2, Auto Scaling, and Elastic load balancer with python SDK. • Worked on React JS Virtual Dom and React views, rendering using components which contains additional components called custom HTML tags.• Implemented SPRING DATA JPA with hibernate as implementation.• Implemented Spring JPA Repository for the persistence layer of the application (this layer communicates with the application DB - Oracle DB).• Responsible for writing J2EE compliant Java code for application development e ort which involved working with JSP, Servlets, JDBC, XML, EJB, etc.• Expert in Using ternary operators and logical conditions to meet conditional formatting requirements in jasper.• Utilized Cassandra, NOSQL database management system for keeping user generated data by upgrading Couch base and Cassandra cluster. • Created React.js components using JSX, followed FLUX design pattern for unidirectional data ow• Designed, built, and deployed a multitude application utilizing almost all of the AW’S stack (Including EC2, MongoDB focusing on high-availability, fault tolerance, and auto-scaling).• Helped to create user roles in jasper server and create domain in server environment.• Prepared the migration document for migrating application from Struts to Spring and Responsive web designing the application.• Wrote JUNIT Test cases for Spring Controllers and Web Service Clients in Service Layer using Mockito.• Developing Hibernate Configuration les for MySQL, Oracle 10g and MongoDB.• Used AngularJS as the development framework to build a single-page application.