SUMMARY

performing patches and maintenance. Maintained network connectivity on an ISDN line. Troubleshot network and operating system problems. Troubleshot Apache and Q - mail problems. Used Photoshop for graphics work related to the main site. Developed HTML web pages. Supported several customer web sites and email accounts. Deployed .Administered Redhat Linux Enterprise Server 5/6 and Windows 2003/2008 Server in a hybrid environment.  Utilized Active Directory and Samba to do Single Sign On authentication across the hybrid network.  

TECHNICAL SKILLS

Key Skills and Knowledge: Apache, MySQL, Postfix, LightTPD, OpenLDAP, OpenSSL, Samba, NIS, Heartbeat, DRBD, DHCP, BIND, Tomcat, Postgres, JBoss7, Hadoop, Accumulo, MapReduce,ZooKeeper, Puppet

Languages: Perl, Bash, PHP, Python, Ruby, C#, Java, C++

Operating Systems: Red Hat Enterprise Linux 5 & 6

OpenBSD & FreeBSD: Microsoft 2003 & 2008 Server

Virtualization Technology: VMware ESX

VCenter: KVM

VirtualBox: OpenStack

PROFESSIONAL EXPERIENCE

Confidential,Hanover, MD

 Systems Engineer

Administered Redhat Linux Enterprise Server 5/6 and Windows 2003/2008 Server in a hybrid environment.  Utilized Active Directory and Samba to do Single Sign On authentication across the hybrid network.  Maintained Apache servers, BIND servers, NFS servers, DHCP servers, NetApp storage servers, Domain Controllers, VMware ESX 3.5, 4.0, 5.0 servers as well as VMware VCenter.  Implemented DRBD and Heartbeat for High Availability NFS, Subversion, and Apache servers.  Experience with Cisco switches and firewalls such as the 6509, 6504, 6524, 3750, ASA 5540.  Experience with iOS version 15 and ASA version 8.0.  Extensive experience with Bash and Perl scripting. Administration and implementation of Hadoop, MapReduce, ZooKeeper, and Accumulo using Puppet. Experience with JBoss7. Deployment of 50+ node Hadoop cluster. Current duties include developing puppet modules, kickstarting systems, integrating java applications with HDFS, Accumulo, Postgres, and JBoss. Develop Perl, Bash, and Ruby scripts to simplify tasks with the deployment of Cloud technologies. Troubleshoot java and ruby code.

Confidential, Meade, MD

Information Systems Security Engineer

Completed an extended field tour at an overseas location as a Metadata Analyst. Conducted Analyst exchanges with national, tactical, and theatre intelligence organizations. Wrote sanitization/declassification scripts as well as several other Perl and Python scripts utilizing regular expressions that were used for analytical purposes. Worked with Puppet to manage several Redhat Linux servers. Used Bastille and CIS to harden Linux. Audited software using Fortify SCA. Cipher testing utilizing C programs, Perl scripts, and Ruby scripts. Worked with VMware Infrastructure. Currently hold a TS/SCI w/ Full Scope Poly.

Confidential, New York, NY

Systems Administrator

Administered 45 Red Hat Linux and 10 Windows 2003 servers. Conduct routine maintenance such as installing OS patches. Maintained all software on servers . Assisted developers in updating web applications using SVN. Implement OS optimizations and security enhancements. Deployed Apache in a load balanced high availability environment. Configured Apache Virtual Hosts and managed hundreds of sites. Performed optimizations for Apache and PHP. Deployed MySQL 5.0 in a Master/Slave configuration. Managed 8 MySQL servers. Tested a 12 - node MySQL cluster. Configured and maintained Postfix instance. In process of configuring redundant postfix with MySQL backend. Deployed LightTPD for high availability/high speed media server. Maintained OpenLDAP in a master/slave environment. Performed upgrades and migrations of OpenLDAP. Deployed Samba for developers to use with Zend platform. Deployed BIND for internal DNS system. Maintained and troubleshot problems with NFS shares. Troubleshot problems with storage arrays. In process of migrating NIS to secondary server I configured. Installed and configured SQL Server 2000 & 2005. Maintained all databases including creating/removing/modifying. PHP, Perl, and Shell scripting to automate tasks. Planned and implemented Subversion. Migrated CVS to SVN. Implemented hooks and group policies in SVN. Configured an HP storage array using OpenFiler with RAID 5. Minor work configuring Asterisk. Added hosts and assisted in configuring Nagios and Cacti. Troubleshot network problems and desktop problems.

Confidential, New York, NY

Systems Administrator

Administered CentOS 4 performing patches and maintenance. Maintained all desktop computers. In charge of all desktop troubleshooting. Deployed an SSL based VPN solution for out-of-office access. Deployed desktop inventory management software. Deployed OpenLDAP for VPN. Configured and maintained wireless network. Configured Heartbeat monitoring software for High Availability. In charge of backups and software/hardware updates.

Confidential, New York, NY

Systems Administrator

Administered Suse Linux performing patches and maintenance. Administered Windows 2000 Server running IIS 5.0. Troubleshot IIS 5.0 issues. Administered Microsoft SQL Server. Create and modify Perl scripts, VB scripts, and Java scripts. Migrated Microsoft Access databases over to Microsoft SQL Server. Plan and implement backup scripts/services. Analyze logs to optimize web services. Develop web applications in ASP.net and C# and PHP.

Confidential,Fairview, PA

Systems and Network Administrator

Built several servers from scratch. Utilized RAID 1 for redundancy. Deployed OpenBSD for a firewall and VPN. Apache and IIS 6 configuration and maintenance. Migrated services on Mandrake to Suse. Utilized sendmail for alert system. Deployed Instant Messaging system, Wildfire. Administered and supported the network. Planned and implemented Gigabit Ethernet. Developed C# web applications. Developed several PHP and ASP.Net web applications. Developed Visual Basic and Visual C# Windows applications. Deployed MySQL in a master/slave configuration. Shell and Perl scripting. Planned and implemented disaster recovery plan.

Confidential,Branchburg, NJ

 Systems Administrator, Designer

Administered OpenBSD performing patches and maintenance. Maintained network connectivity on an ISDN line. Troubleshot network and operating system problems. Troubleshot Apache and Q-mail problems. Used Photoshop for graphics work related to the main site. Developed HTML web pages. Supported several customer web sites and email accounts. Deployed