Senior DoD Systems Administrator - TS, Automation & RMF

Space Programs; Maryland; On-site; USD 130,000 - 185,000; Full time

Benefits offered by this job

Health insurance

Paid leave

Retirement

Job summary

SMX is seeking a Senior Systems Administrator to support DoD enterprise infrastructure at Naval Air Station Patuxent River, MD. The role combines Windows and Linux administration, virtualization, containerization, automation, and cybersecurity compliance to sustain mission-ready systems.

The ideal candidate has deep experience with AD/DNS/DHCP, virtualization platforms, scripting, and DoD RMF/ATO processes, working with developers, cybersecurity, and operations teams to deliver robust, secure

Qualifications

• Clearance requirement: Top Secret clearance.
• DoD 8570/8140 equivalent qualification (Security+ CE).
• Advanced experience administering Windows Server and Red Hat Enterprise Linux (RHEL).
• Strong knowledge of Active Directory, Group Policy, DNS, DHCP, and enterprise networking.
• Proficiency in scripting and automation: PowerShell, Python, Bash.
• Experience with DoD cybersecurity requirements: STIGs, ACAS, RMF, and ATO processes.

Responsibilities

• Administer, maintain, and troubleshoot Windows Server and RHEL environments (AD, IDM, DNS, DHCP).
• Support virtualization, cloud infra, and containerized apps (VMware, OpenStack, Docker, Podman, Kubernetes).
• Automate provisioning, configuration, patching, upgrades, and maintenance.
• Develop automation via PowerShell, Python, Bash and similar.
• Support development, testing, and simulation environments with engineering teams.
• Ensure DoD cybersecurity compliance including STIGs and RMF processes.
• Support RMF/ATO activities with security docs and monitoring.
• Handle hardware/software troubleshooting, imaging, backup, recovery and incidents.
• Collaborate with teams to balance security with operational delivery.

Skills

Top Secret clearance

Security+ CE

Windows Admin

Linux Admin (RHEL)

Active Directory

Group Policy / DNS / DHCP

Automation scripting (PowerShell/Py/BP

Virtualization (VMware/OpenStack)

Container/Orchestration (Docker/Podman

Kubernetes

STIG/RMF/ATO compliance

Tools

OpenStack

VMware

Docker

Podman

Kubernetes

Ansible

Terraform

Git

Job description

SMX is seeking a Senior Systems Administrator to support DoD enterprise infrastructure at Naval Air Station Patuxent River, MD. The role combines Windows and Linux administration, virtualization, containerization, automation, and cybersecurity compliance to sustain mission-ready systems.

The ideal candidate has deep experience with AD/DNS/DHCP, virtualization platforms, scripting, and DoD RMF/ATO processes, working with developers, cybersecurity, and operations teams to deliver robust, secure