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# Senior Systems Administrator

- **Company:** Karthik Consulting, LLC
- **Location:** Columbus, OH, United States
- **Experience:** Expert
- **Salary:** $140,000.0 - $145,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Amazon Web Services, Systems Engineering, Microsoft Azure, Cloud Computing, Cyber Security, System Configuration, Dynamic Host Configuration Protocol, Domain Name System (DNS), Fault Tolerance, Microsoft Operating Systems, Microsoft Software, Windows Servers, Network Connections, Public Key Infrastructure, Windows PowerShell, Server Administration, Software Systems, Software Vulnerability Management, Data Processing, Enterprise Software Applications, Load Balancing, Software Troubleshooting, SC Clearance, Servicenow
- **Published:** October 2, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9212509/senior-systems-administrator

## About the Role

Bachelor's degree in a technical discipline.
At least 10 years of specialized information processing experience, with the majority spanning specialized disciplines and a range of hardware and software solutions.
At least 4 years of concentrated hands-on experience installing, configuring, maintaining, and troubleshooting software.
A relevant technical certification from a nationally recognized authority.
DoD-approved 8570/8140 baseline certification at the IAT II or IAT III level.
Applicable DLA-approved Computing Environment certifications for Server Admin M and Domain Admin Z, covering cloud or Microsoft operating systems as required.
Secret clearance and Tier 5 investigation meeting High Risk/Critical Sensitive IT-1 requirements at proposal submission.
U.S. citizenship., Enterprise Windows Server administration, Active Directory, Group Policy, and DNS/DHCP experience.
Experience with PowerShell, ServiceNow, Azure, AWS, or milCloud.
Knowledge of backup and recovery, PKI, load balancing, and fault tolerance.
Experience with DISA STIGs, RMF, patching, and vulnerability management in a DoD or DLA environment.
Additional Microsoft, Azure, ITIL, cloud, or cybersecurity credentials.

## Description

Support the enterprise systems behind a critical Department of Defense mission.
We are seeking a Senior Systems Administrator to support the DLA Enterprise Windows Administration Support Services (EWASS) program in Columbus, Ohio. This role offers the opportunity to apply your technical expertise across enterprise Windows infrastructure, systems optimization, security remediation, and automation.

What You'll Do
Install, configure, maintain, support, and optimize enterprise software systems and network connections.
Administer Windows Server environments and support server builds, upgrades, and decommissioning.
Troubleshoot software, application, and connectivity issues for users and technical teams.
Analyze system capacity and performance and recommend improvements.
Support cloud and hybrid hosting, patching, backup and recovery, and vulnerability remediation.
Apply DISA STIG requirements and support RMF compliance activities.
Use PowerShell and other automated tools to improve administration efficiency and accuracy.
Support load balancing, fault tolerance, technical procedures, and administrator or user training.