Senior Systems Administrator III — Windows & Linux (DoD)

Cape Fox Corporation; Dugway (UT); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Life and disability insurance

Tuition reimbursement

401K with company match

Job summary

Cape Fox Corporation’s Cape Fox Federal Integrators (CFFI) seeks a Senior Systems Administrator III to support a federal government client at Dugway Proving Ground, UT. You will design, deploy, and manage Windows and Linux server environments with a focus on security, availability, and RMF/STIG compliance.

The role requires DoD IAT Level III readiness, Active Top Secret clearance eligibility, and collaboration with network, cybersecurity, and application teams.

Qualifications

• Must have a high school diploma or equivalent.
• Minimum of 5 years’ experience as a Systems Administrator.
• Active U.S. citizenship and ability to obtain/security clearance.
• DoD IAT Level III certification or equivalent required.
• Experience with Windows/Linux server environments in an enterprise.
• Experience with security baselines, STIGs, RMF processes.
• Proven backup, disaster recovery, and documentation skills.
• Strong collaboration with network, cybersecurity, and application support teams.

Responsibilities

• Administers Windows Server and Linux server environments in a federal setting.
• Manage AD infrastructure, OUs, users, GPOs and trust relationships.
• Design and deploy security baselines and software deployment via GPOs.
• Patch cycles per IAVM requirements and STIG compliance.
• Implement backup/recovery solutions and test recovery procedures.
• Operate enterprise monitoring tools to detect issues proactively.
• Manage VMware vSphere/ESXi and Hyper‑V environments.
• Troubleshoot complex multi-system issues and perform root-cause analysis.
• Document systems, configurations, diagrams, and DR plans.
• Support RMF authorization activities and STIG remediation.
• Coordinate with network, DB, and app teams for interoperability.
• Provide Tier III support and mentor junior staff.

Skills

SNMP

CISCO

NAC

Active Directory

VMware/Hyper-V

RMF/DoD IAVM

Troubleshooting

System design

Cloud/Hybrid

Education

IAT Level III (DoD 8570.01-M)

GSEC

Security+ CE

SSCP

CySA+

CAP

CND

Cloud+

HCISPP

RHCSA

RHCE

VCP/VMware certs

Tools

Windows Server 2016/2019/2022

RHEL/CentOS

Active Directory/Group Policy

VDI/VMware vSphere/ESXi

Backup/DR (Veeam/Commvault)

Monitoring tools (SCOM/SolarWinds/Nagios)

DoD STIG hardening

RMF/IAM/Audit

Cloud/AWS GovCloud/Azure

PKI/Certificate services

Job description

Cape Fox Corporation’s Cape Fox Federal Integrators (CFFI) seeks a Senior Systems Administrator III to support a federal government client at Dugway Proving Ground, UT. You will design, deploy, and manage Windows and Linux server environments with a focus on security, availability, and RMF/STIG compliance.

The role requires DoD IAT Level III readiness, Active Top Secret clearance eligibility, and collaboration with network, cybersecurity, and application teams.