Systems Administrator with Security Clearance

SMS is hiring a Systems Administrator to support our Air Force National Capital Region (AFNCR) IT Services program. This role ensures the stability, security, and peak performance of critical, classified on-premises and cloud-based infrastructure. The candidate will serve mission users across defense and intelligence teams within a Sensitive Compartmented Information Facility (SCIF) environment. Since 1976, SMS has specialized in modernizing legacy IT and sustaining complex enterprise environments for federal agencies.

With the goal of building long-term partnerships with our customers, we invest in our employees by providing the training, tools, and support they need to keep critical missions operational, improve performance, and reduce risk. SMS is headquartered in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. For additional information on SMS, visit www.sms.com . Submit your resume today! Job Responsibilities

• Infrastructure Management: Install, configure, and maintain Linux (RHEL, Ubuntu) and Windows servers within multi-domain environments.
• System Hardening: Execute security controls, implement system configuration changes, and ensure compliance with strict DoD security protocols.
• Vulnerability Management: Monitor and remediate Information Assurance Vulnerability Alerts (IAVAs) via regular patching and scanning.
• Virtualization & Cloud: Configure and manage virtual environments using VMware, Citrix, or AWS.
• Incident Resolution: Provide Tier 2 and Tier 3 technical support for complex hardware, network connectivity, and application issues.
• Identity Management: Maintain active directory infrastructure, manage user accounts, and govern file permissions.
• Disaster Recovery: Oversee routine system backups, storage area network (SAN) configurations, and data recovery operations.
• Team Collaboration: Author and update technical documentation, standard operating procedures, and system security plans. Required Qualifications
• Security Clearance: Must possess an active, transferable U.S. Government TS/SCI clearance.
• DoD 8570 Compliance: Active IAT Level II certification (e.g., Security+ CE, CCNA Security, or CySA+) is mandatory prior to start.
• Education: Bachelor's degree in Computer Science, Information Technology, or a related discipline (equivalent experience may be substituted).
• Experience: Minimum of 3-5 years of enterprise system administration experience within a classified environment. Salary Range - $95.000 - $105,000 SMS 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, disability, or status as a protected veteran. Req # 2026-5480