It Systems Engineer
Progressive Casualty Insurance Corporation
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Daniel Callaghan Email & Phone Number
IT Systems Engineer
at
Progressive Casualty Insurance Corporation
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✓ Verified Jun 2026
3 data sources
Profile completeness 86%
Current company
Progressive Casualty Insurance Corporation
Role
IT Systems Engineer
Location
Greater Colorado Springs Area, United States, United States
Who is Daniel Callaghan? Overview
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Quick answer
Daniel Callaghan is listed as IT Systems Engineer at Progressive Casualty Insurance Corporation, based in Greater Colorado Springs Area, United States, United States. AeroLeads shows a matched LinkedIn profile for Daniel Callaghan.
Daniel Callaghan previously worked as Systems Engineer III at El Paso County, Colorado, Usa and Eng III Spec - Systems Administrator at Verizon. Daniel Callaghan holds Bachelor Of Science - Bs, Computer Infomation Systems Management, 3.4 from Colorado Christian University.
Profile bio
About Daniel Callaghan
I am an experienced enterprise Windows, Linux, and UNIX systems administrator across many types of hardware and software. With a solid background in installation, configuration, virtualization, troubleshooting, cyber security, disaster recovery planning and implementation, network configuration, and documentation, I always try to leverage my skill-set to enhance a company’s IT operational efficiency.
Current workplace
Daniel Callaghan's current company
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Progressive Casualty Insurance Corporation
5 roles
Daniel Callaghan work experience
A career timeline built from the work history available for this profile.
Systems Engineer Iii
Redhat, Office 365 Exchange, VMware, Windows, ActiveDirectory, and NetBackup administration; installation,configuration, backup and troubleshooting of hundreds ofservers for El Paso County, Colorado.Red Hat Enterprise Linux (RHEL) 8,7,6 server administration Microsoft Office 365 Exchange administrationVMware vSphere administration and deploymentsWindows.
Jan 2022 - Aug 2022
Eng Iii Spec - Systems Administrator
- Redhat, Windows and Solaris server administrator; installation, configuration, backup, andtroubleshooting across several large enterprise data center environments.
- Responsible for 450+ Red Hat Enterprise Linux (RHEL) 8,7,6 server administration
- Responsible for 180+ Windows 2016, 2012R2, 2008 server administration
- VMware vSphere v6.7 administration and deployment
- Primary NetBackup administrator for the Colorado Springs NEC location
- Managed 101 Dell 2U R740 and R640 data center servers locally.
May 2019 - Dec 2021
Systems Administrator Ii / Linux Desktop Engineer
- I was primary IT support for a large team of electrical engineers and scientists.
- Redhat server and desktop installation, configuration, backup, and troubleshooting.
- SUDO, ssh, LVM, and CFEngine work environment.
- Virtual Machine administration and deployment.
- DAS, NAS, SAS RAID configuration, deployment.
- RSnapshot (rsync) disaster recovery implementation.
Apr 2014 - May 2018
Systems Administrator Iii
Exelis (Now Harris)
Managed a classified server room comprised of Windows 2008R2 servers and Redhat 5.x/6.x workstations. Information System Security Officer (ISSO) for managed area.Responsible for all unclassified VMWare ESX SAN architecture, Windows 2003/2008R2 Server administration. Windows XP, RHEL Linux 4 and 5 WS, IBM AIX, Debian client support, and PBX phone telephony.
Jan 2005 - Mar 2013
1 education record
Daniel Callaghan education
FAQ
Frequently asked questions about Daniel Callaghan
Quick answers generated from the profile data available on this page.
What company does Daniel Callaghan work for?
Daniel Callaghan works for Progressive Casualty Insurance Corporation.
What is Daniel Callaghan's role at Progressive Casualty Insurance Corporation?
Daniel Callaghan is listed as IT Systems Engineer at Progressive Casualty Insurance Corporation.
Where is Daniel Callaghan based?
Daniel Callaghan is based in Greater Colorado Springs Area, United States, United States while working with Progressive Casualty Insurance Corporation.
What companies has Daniel Callaghan worked for?
Daniel Callaghan has worked for Progressive Casualty Insurance Corporation, El Paso County, Colorado, Usa, Verizon, Keysight Technologies, and Exelis (Now Harris).
How can I contact Daniel Callaghan?
You can use AeroLeads to view verified contact signals for Daniel Callaghan at Progressive Casualty Insurance Corporation, including work email, phone, and LinkedIn data when available.
What schools did Daniel Callaghan attend?
Daniel Callaghan holds Bachelor Of Science - Bs, Computer Infomation Systems Management, 3.4 from Colorado Christian University.
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