Velu Samy

E-mail: velus28@gmail.com

Phone: 425-443-4649

 

PROFESSIONAL SUMMARY:

 

·   Over twelve years of experience in software development, implementation and consulting projects.

·   Proficient with UNIX (Solaris, HP), LINUX, Windows,  Hadoop , Mapreduce, JAVA, JSP, Maven, Pig, Hbase, Hive, SOA, Bash,  Redhat Openshift, Spring, Web Logic Application Server, XML, JSON, Junit, Spring, Oracle, Tomcat.

·   2 years of experience with Hadoop, HDFS, MapReduce and Hadoop Ecosystem (Pig & Hive).

·   Have hands on experience in writing MapReduce jobs using Java.

·   Hands on experience in writing Hive scripts.

·   Hands on experience in installing, configuring and using ecosystem components like Hadoop MapReduce, HDFS, Sqoop, Pig& Hive.

·   Hands-on experience with Hadoop applications (such as administration, configuration management, monitoring, debugging, and performance tuning).

·   Object Oriented Design (OOD) experience with Rational Rose and Enterprise Architect (EA).

·   Applied Use Case diagrams and Class diagrams using UML and Rational Rose.

·   Participated in requirement analysis, reviews and working sessions to understand the requirements and system design.

·   Experience in developing front-end using JSF, JavaScript, HTML, XHTML and CSS.

·   Experience in working with web/applications servers JBOSS, Apache Tomcat and Apache HTTP Server.

·   Thorough knowledge of scalable n-tier, distributed as well as client/server architectures.

·   Experience in designing highly transactional websites using J2EE technologies and handling design/implementation using NetBeans/Eclipse/MyEclipse.

·   Experience in designing Low Level and High Level design documents.

 

PROFESSIONAL EXPERIENCE:

 

Sr. Hadoop Developer

Seattle, WA

This software automates sales by enabling comprehensive functions vital to the  retail marketplace, such as reporting, processing of returns, sales, discounts/exceptions, and receipt printing and configuration. There were huge amount of data flow of the logs from different servers about the transactions at different stores Nationwide. It primarily works out the type of exceptions that are frequently occurring at the sites and also reduce the overhead of the exceptions and recommends some best solution to the system.

Responsibilities:

 

·                        Configured Fair Scheduler to provide service-level agreements for multiple users of a cluster.

·                        Responsible for maintaining and monitoring clusters.

·                        Loaded data into the cluster from dynamically generated files using Flume and from relational database management systems using Sqoop.

·   Wrote a caching server using Mapreduce JAVA,  Hadoop, Maven,  JSON, Pig, Hbase and Hive.

·   Wrote a word processing program using Hadoop, Mapreduce, JAVA, Eclipse.

·   Utilized Hadoop(Mapreduce, Pig, Hbase) to do Data mining.

·                        Managing nodes on Hadoop cluster connectivity and security.

·                        Used Pig to do transformations, event joins, filter bot traffic and some pre-aggregations before storing the data onto HDFS

·                        Wrote Flume and Hive scripts to extract, transform and load the data into Database.

·                        Used CVS &Gitto check-in and checkout code changes.

 

Environment: Java, Hadoop, Linux, HDFS, Hive, Sqoop, Flume, Zookeeper, eclipse, WinCVS and HBase, Windows7.

Independent  Consultant March 2009 – January 2012

Senior Developer

Verizon's and provisioning applications are comprehensive set of modules integrated together to enable core telecom provisioning and an open set of interfaces to communicate with numerous 3^rd party interfaces.

 

·               Existing applications were written in Java, XML and Oracle 9i.  Built the entire application using Maven, created jars and deployed them into HDFS.

·               Added new SQL statements to a customer call routing module using Beeswax, Hbase,  Java to generate a series of JSON strings to store and maintain an external cache.

·               Modified existing function to remove set of codes that have been used to generate string earlier.

·               Filtered interfaces that send mass mails randomly and converted functions from C and other legacy languages to Java, spring, Maven, Eclipse, HDFS and a proprietary bug controller.

·               Have done numerous other bug fixings and smaller development tasks using Java and J2EE.

 

 

State of California, Oakland, CA   September 2007 –March 2009

Senior Developer/Analyst

Department of Workers Compensation is a child unit of the State of California and is responsible for providing unemployment insurance plus related expenses.  An application system is in place to automate ongoing benefit flow and it has been developed using Java J2EE.

SEM is an integrated infrastructure system that provides business and technology solutions for heavy batch plus online transactions oriented industry.

·   Developed modules to enable an unemployed worker to change their treating physician using UML (Rational Rose), Tomcat, Java, JSF, JavaScript, Log4j, CVS, Spring, Maven, Web Services, WSDL, and SOAP.

·   Ported application  to Hadoop based environment.

 

Verizon Wireless, Warren, NJ    February 2007 – August 2007

Senior Developer

The provisioning server of Verizon Wireless is being used to activate, deactivate and maintain wireless devices.  It’s a subset of greater Verizon communications.

Dispatching is a set of modules being used for a total activation of wireless devices.

·   Wrote variety of callable functions to add, modify and cancel customers for cell phone activation and deactivation using Spring, Java, JSP, PL/SQL, JDBC, SOAP, WSDL, JNDI, XML, Oracle 9i.

·   Maintained queries, added new routines using Oracle, Java, Web Logic server, Tomcat, JSP, Oracle, EJB and JDBC.

 

FundTech, Atlanta, GA            February 2006 – December 2006

Senior Software Engineer

FundTech has a history of staying as a reliable middleman firm between banks, financial institutions and brokerage firms.  ACH and Money Transfer are the two most important modules within the firm's parent application and they are being used to clear transactions and make sure that fund transfers occur within the time limits.

·   Wrote programs to do an overall inventory and to take care of various storage features such as import of customer users, account sensitivity using Tomcat, Web Logic portal 8.1, JSP, Struts, JavaScript, Hibernate, Java, JDBC, Junit, Oracle9i, PL/SQL, SQLPLUS, Spring and XML.

·   Developed new functionalities to clear transactions (which include very detailed flow verifications and access level restrictions) and money transfers using Web Logic, Tomcat, JSP, Servlets, Java, Oracle9i, PL/SQL, JDBC, JNDI, Struts, EJB, JSP, MQ, SOAP, WSDL and XML.

·    

JP Morgan Chase, Houston, TX January2005 – December 2005

Senior Developer

Global Credit Risk Management is a set of JPMC's well distributed application systems and have been used to take care of a variety of trades and feeds from various sources.

·   Modified data structures of existing fixed income products using  Java, Struts, Ant, JMS, JSP, Servlets,  XML, UNIX, SQL, Spring, Hibernate, DB2 UDB.

·   Maintained modules that extract and load millions of feeds from various global trading desks located in New York, Tokyo, London, Australia, Singapore and Malaysia using SQL,  Web Sphere and Oracle.

·   Extracted trades were fed as inputs to the next subset of the parent application.

·   Developed a module to map the collateral feeds (type of a fixed income trade) according to a new industry standard and generated a PDF (Acrobat) document for presentation purposes using Junit, Ant, JSP, EJB, JMS, JNDI, WSDL, SOAP, UNIX, Hibernate, Web Logic, XML, SQL and Sybase.

·   Integration testing for credit risk modules that are about to be ported for new proprietary system using Java, EJB, Tomcat, UNIX and SQL.

 

VERIZON Data Services, Bluehill, NJ and Tampa, FL          November 2003 – December 2004

Senior Programmer Analyst

FTTP Inventory System is an outside plant engineering system for Verizon’s FTTP network facilities.  The primary function of this system enables the field engineers to have access to materials pertaining to FTTP.  This is a web based application (for any given jurisdiction and wire center).

·   Wrote programs and interfaces using J2EE, Java, DB2 UDB, Web Sphere, PL/SQL and SQL to add, modify and delete fibers used for FTTP provisioning.

·   Developed a module to inventory list of customer location codes and possible telephone numbers for a given order number using UNIX, Java, JSP, Servlets, EJB, Ant, XML, Oracle 9i, SQL, PL/SQL and MQ.

·   Wrote programs to enable application teams to share messages using EJB, Servlets, Ant, Web Logic and Java.

·   Developed a module to calculate losses while data gets transferred thru fiber-optic cables using J2EE, JSP, EJB, Servlets, Oracle 9i, XML, XSL, STL libraries (Vector, Map, Algorithms and lists), MQ.

·   Developed a module to transfer message lists across different web and non-web applications using Servlets, JNDI, JMS, XML, Servlets, JSP, MQ, XSLT, STL, UNIX, SQL, DB2 UDB and shell scripting.

·   Wrote a program to generate web-enabled reports using JMS, Java, Servlets, EJB, UNIX, XML, SQL and DB2 UDB.

·   Developed a module to create a communication channel among different applications using Java, PL/SQL, Socket Programming and TCP/IP.

·   Designed classes and wrote case diagrams using Rational Rose tool and added them to main structure.

·   Utilized version control tool CVS to check-in, check out and to maintain the source repository in general.

Spear, Leeds & Kellogg (subsidiary of Goldman Sachs), NY January 2000 – November 2003

Senior Developer

Project: Fixed Income Trading Systems

·   Developed an application to store and maintain T-Bonds, mortgage-backed securities, government, and agency bonds.  Involved with development of the functions utilized for calculating prices and yield curve for traded securities.

·   Designed classes and wrote functions in Java, SQL(Sybase) and Perl to calculate the sensitivity of bonds and mortgage backed securities prices according to the variance of interest rates, the sensitivity of bond prices according to the variance of yield-curves.

·   Extensively worked with design and development for trading of different types of mortgage backed securities such as pass-thru securities, CMO and Strips using Java and Shell Scripting  for the purpose of calculating PVs & FVs of given bonds.

·   Used different kinds of quantitative formulas to design main functions to calculate the present and future values of given bonds and implemented them in a real time environment.

·   Designed classes and components using Java, JSP, STL (Lists and Hashtables) SQL, Web Logic and Oracle to transfer messages containing positions, prices for traded bonds.

·   Utilized sockets, Java and MQSeries to create server side business objects and used session facades to interact with those objects from clients.

·   Wrote programs using Java, UNIX, SQL and FTP to generate web-enabled reports.

·   Wrote interfaces using Java, SQL, Sybase, HTML, DHTML, JDBC, and FIX Protocol to transfer positions and corresponding price messages across different servers.

·   Wrote SQL Queries and Triggers to extract millions of trades and feeds (these trades are traded using the real-time trading system).  They would be routed to store in different databases belonging to locations within Goldman Sachs.

 

MClane Co, Temple TX and Gannet Offset IT, Springfield VA         September 1997 – December 1999

Senior Programmer Analyst

Project: Mail Subscription System

·   Worked with Gannett Offset, a newspaper manufacturing company that publishes The New York Times, USA Today and Washington Post.

·   The Mail Subscription System is comprised of Mainframe, UNIX and LINUX computer systems.  The system keeps up to date records of nationwide customers.

·   Provided assistance with designing objects for new systems.

·   Analyzed the existing legacy programs to convert to Java.

 

DBS Bank, Singapore        October 1996 – September 1997

Programmer

Project: Call Center System

·   Designed call center applications for one of the leading banks in Singapore.

·   The Call Center applications were created to facilitate the processing of customer's bank transactions through bank agents.  Bank agents collect all the information and forward it to support units (SU) for completion.

·   Integrated the call center applications with other systems like FCCA and credit cards.

·   The entire system includes on-line processing, on-line report printing, batch, report and ad-hoc applications.

·   Designing, coding, and testing program specifications.

Education:

Bachelor of Engineering in Electrical and Electronics, 1991-1995, GCE, Tamilnadu, India.