David M Scherzinger

Cogito Clarus LLC

2009 to 2000
Managing member
US Customs and Border Protection - Springfield
Alexandria, VA
Aug 1999 to Sep 2012
Systems Architect (contractor)
US Customs Service
Springfield, VA
Dec 1996 to Aug 1999
Senior UNIX systems administrator (contractor)
Alltech International
McLean, VA
Apr 1995 to Oct 1996
UNIX systems administrator (contractor)
LCC, LLC
Arlington, VA
1994 to 1995
X windows/Motif developer
LCC, LLC

1993 to 1994
UNIX systems administrator
Intelus, Inc
Rockville, MD
1993 to 1994
UNIX systems administrator

The George Washington University
Ashburn, VA
1992
certificate

NoSQL Databases - mongoDB, Hbase, Hive, Pig, BerkeleyDB Java edition<br/>SQL Databases Oracle 11g, SQL Server<br/>Specialty and BigData software - Lucene/Solr, Hadoop ecosystem (HDFS, Yarn, HBase, Flume, Sqoop, Oozie, Pig, Hive and Impala), Drools, Spring, Terracotta<br/>Web-centric software/languages - All major J2EE platforms (Tomcat, Websphere, Glassfish, et al.), JavaScript, JSON, HTML5<br/>Secondary programming Languages Python, Groovy, Scala, Prolog<br/>Principle programming Languages - Java, C, C++, PL/SQL, SQL<br/>Middle-ware - IBM Websphere MQ<br/>Operating systems - AIX, Linux, Solaris, Android

Washington D.C. Metro Area

Computer Software