Systems Administrator - Mid

ValidaTek, Inc.

2d•$85,000 - $100,000•Onsite

About The Position

ValidaTek is seeking a skilled and dedicated Mid-Level Systems Administrator to support the Cybersecurity Systems Support (CSS) contract with the Defense Information Systems Agency (DISA). This position leads a small team and is responsible for the day-to-day operations, maintenance, and security of enterprise systems in a high-security DoD environment. The ideal candidate will possess a solid technical foundation, a collaborative mindset, and the ability to support secure and stable IT infrastructure. This is a 100% on-site role located on Scott Air Force Base, IL. Shift: Monday - Friday 11:00pm - 7:30am

Requirements

Active Secret clearance with the ability to obtain a Top Secret clearance.
3+ years of experience in systems administration in a DoD or large enterprise environment and Associate’s or Bachelor’s degree in Computer Science, Information Technology, or a related field OR equivalent hands-on experience.
DoD 8570 IAT Level II certification (e.g., Security+ CE) – required.
Solid experience with Windows Server and/or Linux systems administration.
Familiarity with virtualization platforms (e.g., VMware, Hyper-V).
Working knowledge of STIG compliance, RMF, and security best practices.
Experience with system management and monitoring tools (e.g., SCCM, SolarWinds, PowerShell scripting).
Strong troubleshooting skills and the ability to work independently in a secure, structured environment.

Nice To Haves

Experience leading small team and coordinating with government POC in a watch center or similar environment.
Vendor certifications such as MCSA, RHCSA, or VMware Certified Professional (VCP).
Familiarity with eMASS, HBSS, ACAS, or Splunk.
Understanding of ITIL practices, including change and configuration management.
Experience supporting DoD or classified information systems.

Responsibilities

Administer, maintain, and troubleshoot Windows and/or Linux servers, ensuring optimal system performance and availability.
Manage and support enterprise services such as Active Directory, DNS, DHCP, and Group Policy.
Apply patches, updates, and antivirus definitions in compliance with DoD STIGs and IAVM directives.
Support user account administration and permission management in accordance with security and access policies.
Participate in the implementation and enforcement of security controls as part of the Risk Management Framework (RMF).
Assist with eMASS documentation and ATO/IATT sustainment efforts.
Perform system monitoring, log analysis, and troubleshooting of hardware and software issues.
Maintain accurate documentation of system configurations, changes, and procedures.
Assist with backup and recovery operations, ensuring data protection and continuity.
Support the deployment and operation of cybersecurity tools including HBSS, ACAS, and SIEM platforms.
Work collaboratively with network, cybersecurity, and help desk teams to ensure secure, stable, and compliant system operations.