System Administrator

This full-time, on-site System Administrator role in our Oklahoma City corporate office is responsible for ensuring reliable, secure, and efficient operation of end‑user devices and core IT systems. Working closely with the Tech Support Specialist, the System Administrator provides escalated technical support, maintains both on‑premises and cloud-based Microsoft environments, and proactively improves user uptime through effective system maintenance, troubleshooting, and implementation of new capabilities.

The position plays a key role in managing servers, networking systems, virtualization platforms, and enterprise tools while supporting ITSM functions and security best practices across the organization.

Key Responsibilities:

Assist with maintenance and secure configuration of servers, firewalls, wired and wireless networking systems including regular patch management.

Help manage and optimize ITSM activities using ITIL best practices including service desk, service request & incident management, IT asset management, knowledge management, and problem management.

Responsible for the maintenance, configuration, monitoring, and reliable operation of server hardware, virtualization platforms and peripheral systems such as VOIP phone systems, multi-function printers, Wi-FiTroubleshoot hardware and software issues by running diagnostics, researching documentation, documenting problems and resolutions, prioritizing problems, and assessing the impact of issues.

Help maintain Entra (Azure AD) hybrid environment

Other IT duties as assigned

Required Qualifications /

Experience:

Education:

Associate or Bachelor’s degree in Information Technology, System Administration, Computer Science, or a closely related field, or equivalent experience required3 to 5 years’ experience in a Sys Adm or similar role required

Experience with on-premises and cloud-based Microsoft (MS) systems and tools especially Active Directory, Entra/AzureAD, Exchange Online, and other MS 365 management tools

Endpoint and mobile device management experience with tools such as Intune, MECM, Jamf, or similar

Experience with Microsoft Server in virtualized environments

Experience with Microsoft domain services, Active Directory functionalities, Group Policy, DNS, and DHCPA+, Security+, Network+, Certified Ethical Hacker (CEH), MCP and/or other relevant security/OS/network certifications

Excellent verbal and written communication skills

Respectful, empathetic customer-centered support skills. Ability to translate end-user requirements into appropriate technical action

Experienced in editing clear, succinct, engaging technical knowledge base articles, policies, and procedures using modern digital editing tools.

Ability to work independently and as part of a cross-functional team

Must be willing and able to obtain a U.S. Government security clearance US Citizen

Preferred Qualifications /

Experience:

Advanced experience with VMWare virtualization platform, or equivalent

Advanced Linux OS experience MS Cloud certifications

Experience with VEEAM backup software, Watch Guard and Sonic Wall networking equipment, Dell Servers Familiarity with DoD cybersecurity standards laid out in NIST-800-171, DFARS, and CMMC, FedRAMP, etc.

Experience in the DoD, aerospace industry, and/or a technical support role Candidate must possess a smart mobile phone capable of receiving SMS messages and using modern apps. Must have a high-speed data connection aware Resource Group of Oklahoma, LLC (“DRG”) is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class.

DRG provides affirmative action in employment for qualified individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act
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