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Christopher
chris.ahlstrom@gmail.com
703-507-3811
Lorton, VA 22079
Systems Administrator
14 years experience W2
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Average rating
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Summary

  • Thorough knowledge of Windows system engineering and administration.
  • The ability to create and maintain Active Directory domains.
  • Experience building and maintenance Exchange servers and infrastructure. As well as working with Exchange disaster recovery and server roles.
  • System hardening of Windows servers and workstations.
  • Strong working knowledge of DNS, DHCP, File and Print services.
  • Experience maintaining server hardware, NetApp network attached storage and tape backup.
  • Preparing domains and networked hosts and servers for certification and accreditation.
  • Security compliance scanning using Retina, SPAWAR SCAP tool, and Tenable SecurityCenter with Nessus (DISA ACAS).
  • Experience working with technically diverse teams to solve enterprise wide challenges.
  • System monitoring using SCOM and NetIQ.
  • Creating Powershell and batch script files.

Experience
Systems Administrator
Professional/Consulting Services
Jul 2017 - Mar 2018
  • Technical support for Windows server 2008r2 and Windows 10 clients.
  • Automated several processes, including account creation, account decommission, and disabling accounts over 60 days using powershell scripts.
  • Imaging new and repurposed laptops, and documented the imaging process.
  • Passing down of the imaging and repurposing process to new staff members.
  • Provided tier 3 support for the JVE environment.
  • Windows system maintenance and patching.
  • Provided security remediation on the Exchange email system when requested by the ISSO.
Windows Server System Administration PowerShell Laptops Windows
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Technical support
Information Technology
Jul 2017 - Jul 2017
  • Automated several processes including account creation account decommission and disabling accounts over 60 days using powershell scripts.
  • Imaging new and repurposed laptops and documented the imaging process.
  • Passing down of the imaging and repurposing process new staff members.
  • Provided tier 3 support for the JVE environment.
  • Windows system maintenance and patching.
  • Provided security remediation on the Exchange email system when requested by the ISSO. Defense Security Service
Laptops
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Technical support
Information Technology
May 2016 - Jul 2016
  • Windows server 2008r2.
  • System maintenance, including break-fix, patching, and system monitoring.
  • Planning and implementing system upgrades.
  • Automating tasks using powershell scripts.
Database Upgrades
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Exchange Engineer
Construction/Engineering
Apr 2015 - Nov 2015
  • Secret Service
  • Technical support for Windows server 2008r2 and exchange 2008.
  • Monitor, maintain and support the day to day operations of the USSS Exchange messaging infrastructures.
  • Respond to and resolve escalated Exchange system incidents, problems or outages.
  • Test and deploy Windows and Exchange patches.
  • Assist team with design, planning and execution of the migration to Exchange 2013.
Windows Windows Server
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Senior Systems Administrator
Information Technology
Dec 2013 - Apr 2015
  • Technical support for Windows 2003 and 2008r2 based servers and clients.
  • Upgraded ITSM system from BMC Track-It! to BMC Footprints.
  • Providing workstation and laptop distribution to remote sites.
  • Evaluating new software, providing SOP and change request process documentation.
  • Windows server patching and vulnerability remediation.
Windows Server System Administration Windows
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Windows System Engineer
Construction/Engineering
Apr 2012 - Dec 2013
  • Support for the official message traffic distribution system under the largest command in the Navy.
  • Provided much needed maintenance to a neglected system. Including reducing white space across four exchange databases by a total of sixty percent and replacing inoperable servers.
  • Resolved domain replication issues.
  • Consolidated hardware and implemented virtualization using VMware.
  • Maintaining a clustered exchange 2003 environment, including patching, system backup, disaster recovery and break fix actions.
  • Successfully accrediting system based on DIACAP process. Including running DISA gold disk, SCAP and retina scans, remediating vulnerabilities, and preparing PoAM documents.
Disaster Recovery VMWare Data Replication Database Backups Systems Engineering Windows
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Enterprise Exchange Administrator
Information Technology
Dec 2008 - Mar 2012
  • Copper River IT State Department Enterprise Exchange Administrator.
No skills were added
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Technical support
Information Technology
Jan 2012 - Jan 2012
  • Worked with a team to plan for and deploy new multifunction printers the entire organization.
  • Provide tier 2 - 3 support for escalated issues.
  • Windows system maintenance and patching. Vulnerability remediation based on DOD STIGs as well ACAS scans provided by security personnel.
  • Installed HBSS client on workstations which did not receive automatic updates in order maintain network compliance. 22nd Century
Compliance Printers
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Microsoft Exchange engineer
Construction/Engineering
Dec 2008 - Dec 2008
  • Department of State secure email system. Including all local offices and overseas embassies and consulates.
  • Maintained clustered Exchange servers connected to a NetApp NAS for shared storage. Monitor servers using NetIQ resolve server and service outages as they appear. Perform any maintenance as needed.
  • Determine and implement preemptive fixes based on NetIQ and SCOM alerts.
  • Provide tier 2 and 3 support to embassy and consulate administrators. Install patches and software.
  • Perform disaster recoveries on inoperable exchange servers. Maintaining the State Department Lotus notes system CableExpress.
  • Terrorist Screening Center
Lotus Notes Microsoft Exchange NAS NetApp
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Edit Skills
Non-cloudteam Skill
Education
April
Technical School 2000
NetApp Data ONTAP Fundamentals
USAF Basic Training
Broad Run High School
Certifications
CompTIA Security+ Certified
Microsoft Certified Professional
Currently training for the AWS Certified Solutions Architect Associate and MCSE: Messaging
Skills
Windows
2018
4
System Administration
2018
2
Data Replication
2013
1
Database Backups
2013
1
Disaster Recovery
2013
1
Laptops
2018
1
Systems Engineering
2013
1
VMWare
2013
1
Windows Server
2018
1
Compliance
2012
1
Database Upgrades
2016
1
DHCP
0
1
DNS
0
1
Lotus Notes
2008
1
Microsoft Exchange
2008
1
MS Active Directory
0
1
NAS
2008
1
NetApp
2008
1
PowerShell
2018
1
Printers
2012
1
Project Management
0
1
System Monitoring
0
1