Senior Forescout Cyber Security Engineer

About the role

Location: Reston, VA or Washington, DC. Required Clearance: Active TS/SCI with Polygraph Eligibility. Employment Type: Full-Time Regular. Shift: Day. Travel: No. Relocation Assistance: Yes.

We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's important. Ennoble First is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can't turn into an opportunity.

Ennoble First is seeking a Senior Forescout Cyber Security Engineer to support the deployment, operation, and sustainment of enterprise Network Access Control (NAC) and device visibility capabilities. This role focuses on implementing and maintaining Forescout platforms to enable continuous device discovery, classification, compliance enforcement, and Zero Trust monitoring across complex Government environments. The Senior Forescout Cyber Security Engineer works closely with network engineering, cybersecurity operations, and platform teams to ensure accurate asset visibility, policy enforcement, and integration with enterprise security toolchains.

Responsibilities

• Develop relationships quickly and easily with other teams, communicating the complexities of security with a wide variety of audiences, including senior management.
• Manage infrastructure and cybersecurity controls, including enhanced detection and vulnerability capabilities and improved event correlation in large enterprises.
• Contribute to risk and vulnerability assessments in network, system, and application areas, and leverage big data analytics and traditional security event types to identify advanced threats or indicators of compromise.
• Deploy, configure, operate, and sustain Forescout platforms supporting device discovery, classification, and network access control.
• Implement and maintain compliance, posture assessment, and enforcement policies aligned with Zero Trust principles.
• Integrate Forescout with enterprise security technologies, including identity management, endpoint security, vulnerability management, SIEM, and SOAR platforms.
• Perform upgrades, patching, configuration changes, and lifecycle maintenance activities.
• Troubleshoot platform issues, visibility gaps, enforcement failures, and integration challenges.
• Develop and maintain technical documentation, runbooks, and operational procedures.

Requirements

• 5+ years of experience performing systems administration for Windows or Linux, including performing basic troubleshooting and installation or configuration, monitoring system performance or availability, and performing security upgrades.
• Experience architecting and designing IP networks, including developing and documenting network topologies.
• Knowledge of multi-domain architectures, including data center, WAN, and LAN in virtualized architectures.