Role: Big data Enterprise architect

Description: AT&T wireless is a communication company. Responsible for technical solution for enterprise applications such as Device lifecycle, Order track, DSC reflash & YODA etc. Provide architecture roadmap, proof of concept(s), coding guidelines, introduction to new technologies etc for these applications. Lend expertise to other groups for architecture, coding, performance tuning exercises.

While working at AT&T involved in multiple POC’s and applications around Web platforms, NOSQL technologies, CI/CD, Big data. Wrote some technical papers around Cassandra.

Responsibilities:

DSC Reflash (Device support Center)

·   Solution architect to design a Mobile device reflashing system to wipe and re-install OS and programs on user’s mobile devices. This system interfaces with equipment manufacturer software to Reflash the devices.

·   Designed and implemented a framework as proof of concept to invoke OEM (Samsung, Motorola, RIM, Apple) provided application, which reflash mobile devices.

·   Over the web user interaction capture while performing these updates.

·   Design solution for user activity tracking and analytics of AT&T customers.

·   Design Ajax based user interfaces for the online invocation using the java webstart.

Environment: Weblogic 10.0, Oracle 11g, J2ee – Spring 3.0, Java mail, DOJO, Spring 3.0, Struts, Hibernate, JSCH, Quartz, Java Web start etc.

DLC

·   Design a 2 billion dollar revenue generating system for fraud detection, GO Phone sales, supply chain enabler system. This system is 30TB system with huge volume processing on a daily basis.

·   Interface with business executives for providing solutions for future business problems, gathering current requirements.

·   Design and mentor a big data solution for making information available to other applications at AT&T.

·   Design applications for performance, horizontal and vertical scalability.

·   Design and implement a highly available and scalable system as an operational warehouse being fed from various systems on a big data platform.

·   Application performance profiling and tuning using advanced tools.

·   Design complex ETL components (mappings, workflows etc) to pull source data into this Hadoop platform.

·   Design scripts to push the synthesized facts into Teradata warehouse.

·   Design hardware and application server layout with implemention of clustering, failover, availabity and performance criterias (8 million dollar investment).

Environment: Cassandra, Oracle 9i/10g RAC, Informatica, Teradata, Hadoop

Ordertrack

·   Design a real time order tracking system for reporting on all orders submitted in the ERP systems.

·   Solution owner and architect for order track with a team of 9 people.

·   Provide overall coding guidelines, performance directives to the development team for a highly scalable application.

·  Design a stateless application based on rich interface architecture based on struts/Ajax and hibernate, spring/Ejb2.1 using latest design patterns.

·  Database modeling for better ETL architecture and reporting needs.

·  ETL architecture using informatica for fast batch systems with low performance loads.

·  Interface with internal teams for problem resolution and requirement capture for the order track system.

·  Assist PMO team to effectively manage the development for the product.

·  POC on HBASE for quicker data ingestion.

Environment: Weblogic 9.2/10.0, Oracle 10g, J2ee – Spring 2.5, EJB 2.1, hibernate 3.0, Ibatis, Struts, Ajax, Ajax taglibs, RIA, informatica power center etc.

YODA

·   Solution architect for a proof of concept for an order management system acting as an intelligent middleware for the AT&T mobility supply chain system.

·   Proof of concept owner, designer and implementer for YODA using latest open ESB architecture (servicemix), spring, ws-bpel, activemq, latest integration pattern such as wiretap, hibernate and oracle 10g RAC database.

·   Act as a hardware architect for laying out the server architecture, performance tuning for application, infrastructure and performance profiling using different tools.

·   Design and develop code snippets for developers in order to orchestrate complicated business process flows using the middleware.

·   Design Ajax based user interfaces for the online ERP business users.

·   Design reporting and archiving strategies for YODA.

Environment: Weblogic 9.2/10.0, Oracle 10g RAC, Teradata, J2ee – Spring 2.5, Servicemix 3.0, Apache camel, Ajax taglibs, Activemq, integration patterns, Hibernate 3.0, Webservices, JMS, email processing, Teradata, java 1.5 etc

Target Corporation       

Role: Java programmer and team lead.

Description: Target is Fortune 10 company in the retail domain. Responsible for working in two projects namely Target Integration Support, ITA Development/ Enhancements.

Responsibilities:

ITA

·   Design, Develop and test the ITA Application. The project is using j2ee Framework with MVC, Business Delegate, Session Façade and DAO design patterns.

·   Code presentation layer using the Struts, business Layer using EJB.

·   Write stored procedures and SQL’s, Triggers, Views for the DB2 and oracle.

·   Write Testing Automation scripts using Win Runner.

Target Integration Support

·   Mainframe and Web environment to be maintained for all projects coming into the integration. Integration environment is setup to simulate production region like activities in order to ensure lower Defect rates in Production.

·   Developing Methodologies for Quantifying Defect occurrences across application releases. Come up with vital statistics about performance and implementation.

·   Evaluation and Trouble shooting applications on Web sphere and ATG Dynamo servers for design, coding or environmental defects. Specifically Application using Design patterns, Struts, Jsp, application servers came under my purview.

·   DB2, MQSeries Administration for the integration environment.

·   Data loading tasks for Oracle and DB2 using platinum, SQL Loader.

·   Automation of various processes using Win Runner Scripting for testers.

·   Designing and coding small applications using struts, jsp for automation of some tasks.

·   Unix shell scripting and general tasks on the unix boxes.

Environment:

DB2, ATG DYNAMO, Web sphere, Win Runner, Java/J2EE, EJB, JSP, Html, Java Script, Struts, MQSeries, PVCS Dimensions, Unix shell scripting, CICS, JCL, Cobol, VSAM, CA-7,Oracle

FedEx

Future state compensation (FSC)                                                          

·   Design and code applications for Management of Sales professional Network of Fed Ex using RUP (rational unified process) SDLC process. 

·   Participate in Use Case modeling for the requirements. Participate in Design process for the applications.

·   Code JSP’S, EJB’S implementing various design patterns such as Factory pattern, Value Object, Business delegate, DAO, MVC, Singleton etc. Deploy code on Web sphere 5.0.

·   Requirement Trace ability and implementing CMMI level processes for the projects. Come up with metrics based on above.

·   Test plan and test case preparation for the Developers.

Environment:

Web Sphere 5.0, Java/J2EE, EJB, JSP, Servlets, JavaScript, Html, CSS, Struts, Jbuilder, toad, Visual source safe

Daimler Chrysler

Rite Source Project (US Imports)                                                         

·   Writing applications for the US Imports system, a system for managing the process of importing parts and vehicles into the US.

·   Use case modeling from the requirement document for developing new systems like Ocean shipment. Converting the use cases into a high level design using Design patterns like MVC, Business delegate, DAO, Session Façade and then classes.

·   Code EJB’s, JSP’s using Struts in WSAD, Dream Weaver. JavaScript, CSS and html scripting was also done in order to develop the application.

·   Deployment tasks for Websphere application server. Customize the resource pooling parameters etc.

·   Writing Complex SQL for DB2 to check data integrity.

·   Coding programs in CICS, JCL, DB2.

·   Developing Test Plans, Test Cases and do unit, system and load Testing.  

·   Data loading tasks from IMS to DB2, DB2 mainframe to db2 UDB (creation of test bed).

Environment:

Ca-7, DB2 UDB, CICS, JCl, IMS, Web sphere 5.0, Java/J2EE, EJB, Struts, MQSeries, DB2 Stored procedures.

Vertex software                                                                                                     

Remote server configuration framework over the network/ Internet

·   Do feasibility study for a project aimed at providing a robust and secure tool for the network Administrator. This tool allows the network administrator to manage his servers independent of location. Proof of concept was presented to the Company management.

·   Team lead for a team of six people.

·   Propose design based on scalability, modularity, security and performance.

·   Work load planning and delegation for the team.

·   Code using JSP, JavaScript, Servlets, RMI

Environment:

Window 2000, Linux, java, SSL, JNDI, LDAP, struts, APACHE, TOMCAT, JSP, Servlets, Struts

Education:

Bachelor of Engineering in Computer Science