On-Site Senior Linux Systems Admin II — Classified IC Infra

Alex-alternative Experts, Inc; Fort Meade (MD); On-site; USD 150,000 - 165,000; Full time

Job summary

ALEX is seeking an experienced Linux-focused System Administrator (Level 2) to support a mission-critical program at Fort Meade, MD. This on-site role requires handling Linux infrastructure, security compliance, and RMF/NIST controls within an SCIF environment.

You will lead STIG implementation, SSP maintenance, and vulnerability remediation across virtualized and containerized platforms, including Docker/Podman, Kubernetes/OpenShift, and DoD PKI.

Qualifications

• 5+ years of system administration in classified or secure DoD/IC environments.
• Hands-on experience with RMF/SSP/A&A processes.
• FIPS cryptography and DoD PKI management knowledge.
• Experience with DISA STIGs and SCAP scanning.

Responsibilities

• Administer, configure, harden, and maintain Linux server environments (RHEL/ Rocky/ CentOS).
• Implement STIGs, manage patching, and remediate findings.
• Support SSP maintenance, RMF activities, and risk assessments.
• Manage STE/STN infrastructure and related cryptographic controls.
• Operate containerized workloads and manage virtualization infrastructure.

Skills

Linux proficiency

DISA STIGs

RMF/ NIST controls

PKI/TLS/cryptography

Container platforms

Kubernetes/OpenShift

VMware vSphere / KVM

Scripting: Bash/Python

DoD/IC security compliance

Education

Bachelor’s degree in IT / CS / Cybersecurity

Tools

Docker

Podman

Kubernetes/OpenShift

VMware vSphere

Job description

ALEX is seeking an experienced Linux-focused System Administrator (Level 2) to support a mission-critical program at Fort Meade, MD. This on-site role requires handling Linux infrastructure, security compliance, and RMF/NIST controls within an SCIF environment.

You will lead STIG implementation, SSP maintenance, and vulnerability remediation across virtualized and containerized platforms, including Docker/Podman, Kubernetes/OpenShift, and DoD PKI.