System Administrator; Network​/System Admin

System Administrator (Network/System Admin)

Otoe Missouria Group (OMG) is a tribally owned business dedicated to delivering high-quality solutions across federal, commercial, and tribal sectors. We provide expert program management, IT services, and operational support to mission-critical environments.

OMG Federal is proactively identifying qualified candidates for an upcoming opportunity supporting U.S. Army IT operations. This position is not currently funded but is anticipated as part of future program requirements. Selected candidates will be contacted as timelines are confirmed.

The System Administrator will be responsible for administering, maintaining, and securing enterprise IT systems within a Department of Defense environment. This role supports infrastructure operations, ensures compliance with cybersecurity requirements, and contributes to reliable system performance across the enterprise.

• Administer and maintain Windows Server and enterprise IT environments
• Manage Active Directory, user accounts, group policies, and access controls
• Support VMware environments, including virtual machines and infrastructure
• Monitor system performance, availability, and security posture
• Apply patches, updates, and system configurations in accordance with STIGs and DoD policies
• Assist with RMF compliance activities, audits, and documentation
• Troubleshoot system issues and provide timely resolution
• Support enterprise tools such as Citrix, SharePoint, and Service Now
• Collaborate with cybersecurity, network, and engineering teams to ensure secure operations
• Maintain documentation and follow standard operating procedures

• Three plus (3+) years of experience supporting DoD or federal IT environments
• One or more DoD 8570/8140 baseline certifications (Security+, CySA+, CASP+, GSEC, GCIH, or SSCP)
• One or more Computing Environment (CE) certifications (RHCSA, RHCE, RHCA, MCSA, MCSE, MCTS, or VMware VCP/VCAP/VCDX)
• Experience with Windows Server and enterprise system administration

• Experience with Active Directory, VMware, Windows Server, Citrix, and Share Point
• Familiarity with RMF and STIG compliance

• Baseline (one required):
  Security+, CySA+, CASP+, GSEC, GCIH, or SSCP
• Computing Environment (one required): RHCSA, RHCE, RHCA, MCSA, MCSE, MCTS, VMware VCP/VCAP/VCDX

• Resume and certification documentation required for submission
• Ability to travel periodically for client meetings and program activities
• Availability during standard business hours with flexibility based on mission needs

• Periodic travel to client meetings, planning sessions, or program events as needed
• Standard business hours with flexibility based on project requirements

Otoe-Missouria Group, LLC (OMG) is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected under federal, state, or local law. We are committed to fostering an inclusive and diverse workplace.