Systems Administrator IV

Chickasaw Nation Industries•Ellsworth AFB, SD

1d•Onsite

About The Position

The Systems Administrator IV provides mid‑level infrastructure and systems administration support for the client systems. This role assists with Windows/Linux administration, virtualization operations, baseline configuration maintenance, patch validation, account management, and routine troubleshooting required to sustain mission‑critical FM systems. The System Administrator works under senior technical direction and supports configuration integrity, system availability, and compliance with sustainment and cybersecurity directives. Chickasaw Nation Industries, Inc. serves as a holding company with multiple subsidiaries engaged in several lines of business (Business Services, Health, Infrastructure and Engineering, Mission Optimization, Technology and Transportation) for the federal government and commercial enterprises. A portion of our profits is used to support Chickasaw citizens. We are proud to support the economic development and long-term viability of the Chickasaw Nation and its people.

Requirements

The ability to obtain, maintain and access classified information at the Secret level.
Required Certification at the DoD 8140 WRC 722, Intermediate level - GMON, SecurityX/CASP+, CCISO, CCSP, CGRC/CAP, CISSO, Cloud+, GCSA, GSEC, Security+, or SSCP
Must comply with cybersecurity patch directives (IAVA, TCNO, NOTAM) and sustainment processes.
Bachelor's degree and a minimum of nine (9) years of relevant experience, or equivalent combination of education/experience.

Responsibilities

Perform routine Windows and Linux systems administration, including system configuration, patch application, monitoring, and troubleshooting.
Support virtualization environments (e.g., Nutanix) by assisting with VM provisioning, configuration, and performance checks.
Maintain system configuration baselines, ensuring updates are properly documented and aligned with approved engineering changes.
Implement and assist in validating patch engineering requirements associated with IAVA, TCNO, and NOTAM directives.
Provide entry level diagnostic support, contribute to root cause investigations, and escalate complex issues to senior engineers.
Assist in maintaining test and development environments, supporting patch testing, configuration control, and test data accuracy.
Support service account management, directory services configuration, and routine system administration tasks.
Maintain accurate system documentation, configuration records, and sustainment artifacts in accordance with PWS configuration management expectations.