Joshua Harding
josh.harding@gmail.com
784 Elm St. #1
New Haven, CT 06511
(203)530-2987
Skills

Operating Systems:
Expert in Red Hat Enterprise Linux, Debian, Ubuntu, Windows
2000. Familiar with Windows 2003 Server, Sun Solaris and many Linux distributions.

Linux Infrastructure: Extensive shell experience with tools such as find, grep, cut, sort,
ethtool, nmap, tcpdump. Built and administered LAMP, Postfix, and DHCP Servers.
Administrative knowledge of MySQL. Administered Linux-HA server for SMTP, DNS,
and LDAP clusters. Operating knowledge of shell & Perl scripting. Troubleshooting
through log inspection.

Microsoft Infrastructure: VMWare Server; Norton Ghost; Altiris Client Management
Suite; Citrix Client Management; Remedy ticketing system.

Security: Knowledgeable in Unix & Windows permissions, SUDO, CHRoot’ed environments,
SSH tunneling, Samba permissions. Experienced in corporate user administration in UNIX,
Active Directory and hybrid UNIX/Windows environments.

Scripting: Operating knowledge of Linux Shell Scripting, Perl, MS Scripting and MSI creation.
Professional Experience
June 2007 – Present
Perimeter Internetworking
Milford, CT
Operations Engineer
 SAAS provider to financial institutions. Hosted email with secure email
communications and content filtering, 200+ services offered to 2500+ customers.
 Member of team of system administrators responsible for health of 200+ production
servers in 4 data centers. VMware based lab environment for testing.
 RHEL Linux environment with Windows and Solaris servers for specific tasks.
 MySQL, Postfix with Amavis & SpamAssassin, BIND, LAMP, Sun Directory Server.
 Build, test, and deploy new software and configurations for production. Performance
testing and assessment of infrastructure upgrades. Top, iostat, ethtool, strace.
 Risk identification and mitigation.
 Administer 4 High-Availability Linux clusters to provide load balanced SMTP, LDAP
and DNS services.
 Maintain monitoring infrastructure based on Nagios & SNMPc. Write and deploy
custom Nagios checks. Rotating on-call responsible for initial assessment and
response to alerts.
 Work with network engineers to resolve network and firewall issues. Extensive use of
nmap, tcpdump, traceroute, telnet for debugging.
Aug 2005 – June 2007 IPC Information Systems
Fairfield, CT
OS, Packaging and Installation Engineer
 Research and Development of servers for management of IP Telephony products.
 Tested new hardware and software features and integrated them into Linux &
Windows servers.
 Upgraded and maintained images for servers.
 Built installers for both Linux and Windows for custom applications.
 Created documentation for several projects. Each consisted of separate specification,
design and implementation documents. Documents reviewed by supervisors and peers.
Linux Systems Administrator
 Created standard Linux & Windows XP images for production use.
 Assisted in building a development environment for embedded Linux systems using
Red Hat Enterprise Linux.
 Responsible for deployment and support of 40 Linux based PC’s, using VMWare
Workstation with Windows XP as a guest OS.
 Assisted in installation and troubleshooting of embedded Linux systems, including
setup of individual workstations to use DHCP, Bootp & TFTP.
 Compiled custom kernels and programs for development use.
 Backup for the site UNIX Administrator. Interacted extensively with Samba and NIS+
servers. Administered NIS+ user database, managed user’s home folders and
configured DHCP services through Solaris and Linux.
 Extensive Network troubleshooting using Fluke devices & packet sniffing. Charged
with identification of Cisco switch issues. Worked with the Network Administrator to
resolve these issues.
Feb 2005 – Aug 2005 Casey Family Services
New Haven, CT
IT Technician
 Support for 300 users. Extensive Customer Interaction.
 Compaq/HP Desktop, Laptop and Server hardware support.
 User and Computer administration in Active Directory.
 Extensive use of Altiris Client Management Suite.
 Supported Windows 2000, AT&T VPN, MS Office suite, Lotus Notes and MS Office.
 Built Nagios servers for network monitoring
April 2004 – Dec 2004 The Community Software Lab
Lowell, MA
Systems Administrator
 Debian Linux environment using Postfix, Apache, Mailman, and PostgresSQL.
 Project Lead for creation and testing of documentation for disaster recovery procedures.
 Project Lead for integrating 2 new servers into existing infrastructure.
 DNS Administration of 38 domains. Created redundant off-site DNS and E-Mail
servers.
 Final point of contact for Windows XP issues.
 Extensive client interaction working to meet many unique organizations’ needs.
Oct 2003 – Jan 2004
The Computer Merchant
Hartford, CT
Network Engineer
 Assigned to The Hartford, Hartford, CT
 Utilized Altiris PC Transplant, Norton Ghost and Windows XP migration. Authored
custom scripts to greatly reduce interactive tasks.
Dec 2002 – Feb 2003 Siemens Business Services East Hartford, CT
Senior Customer Engineer
 Assigned to Cigna, Manchester, CT
 Post Deployment support for Windows XP migration.
 Extensive Customer Interaction in Mission-Critical Environments.
 Trouble-shooting all software and hardware issues arising from migration
2002
Americorps*NCCC
Perry Point, MD
Corps Member
 Assigned to Webster Habitat for Humanity, Springhill, LA
 Supervised 20 college students through the Alternative Spring Break program.
 Extensive interaction with community members, construction teams, and future homeowners.
 Assigned to Camp Vacamas for Youth, New Milford, NJ
 Division Head of Biking Division - supervised 6 counselors, responsible for
scheduling, inventory, and conflict resolution.
2001
Siemens Business Services East Hartford, CT
Senior Customer Engineer
 Assigned to Pfizer Research and Development, New London, CT
 Created documentation for and participated in Windows 2000 Migration for 7000 Users.
 Member of Level 3 Support Team.
 Troubleshooting of Microsoft Outlook and Office 2000, and Lotus Notes.
Education
2001
A+ Certification
New Haven, CT
1999 - 2000
Clark University
 Computer Science Major. GPA: 3.8
Worcester, MA
2004

UMass, Lowell campus
Computer Science Major. Cumulative GPA 3.0
Lowell, MA