Sr Network Administrator with Security Clearance

SMS is hiring a Sr. Network Administrator to support our Base Infrastructure Modernization (BIM) contract. This position will provide Tier 2-4 Network Administration support augmenting Air National Guard Communications Squadron personnel in operating NIPR and SIPR Base Area Network infrastructure. 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

• Provides Tier 2 network administration support augmenting Air National Guard Communications Squadron personnel in operating legacy NIPR and SIPR Base Area Network infrastructure
• Performs shared Tier 2 network administration responsibilities including network monitoring, troubleshooting, security patching per vendor guidance, and configuration management
• Configures network equipment including switches, routers, and wireless controllers per vendor engineering design
• Maintains network device configurations and implements approved changes following change management processes per TO 00-33A-1100
• Monitors network performance using SolarWinds, Splunk, and other network management tools
• Troubleshoots network connectivity issues, routing problems, VLAN configurations, and switching infrastructure
• Performs security patching and vulnerability remediation on network devices
• Responds to Time Compliance Network Orders (TCNOs), Information Assurance Vulnerability Alerts (IAVAs), and USCYBERCOM/AFCYBER TASKORDs
• Participate in local configuration control board meetings
• Coordinates with Tier 3/4 Subject Matter Experts for complex troubleshooting requiring advanced engineering support
• Documents network changes in Enterprise ITSM solution (ServiceNow)
• Retains administrative privileges and access alongside Communications Squadron personnel Required Qualifications
• Education:
• BA/BS Degree
• Experience: 8 Years of relevant experience
• Certifications Required:
• Cisco CCNA or equivalent
• CompTIA Security+CE required
• Clearance Required:
• Active DoD Secret security clearance required 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 ID 2026-5584