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Forescout Cyber Security Engineer; TS​/SCI CI Poly

Job in Vienna, Fairfax County, Virginia, 22184, USA
Listing for: GuidePoint Security
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Forescout Cyber Security Engineer (TS/SCI CI Poly)

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation’s top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk.

This role requires someone working onsite in DC/Reston/Quantic/College Park. A TS/SCI CI Poly is required.

Work with an expert team focused on implementing and operating next generation security solutions for government and commercial clients. Perform hands‑on evaluation, implementation, and operation of leading security Cyber defense tools and technologies. Apply in‑depth defense strategies to large and complex networks to rapidly identify vulnerabilities and threats, prioritize response actions, and develop effective countermeasures. Apply thought leadership in a highly collaborative and innovative work environment to solve complex security challenges.

You will join a team and engineer solutions to complex challenges for customers using your knowledge of network engineering, system administration and Active Directory.

In this role, you'll closely impact mission success, protecting data and networks from malicious payloads and actors. With mentoring, challenging hands‑on problem‑solving, and opportunities to learn new tools and skills, we focus on growing as a team to make the best solutions for our customers.

Basic Qualifications
  • Experience architecting and designing IP networks, including developing and documenting network topologies
  • Experience with network engineering, including physical or logical, such as installation and activation of ports, configuration of switches, and LANs, VLANs, and network FW or appliances or network administration services, such as Active Directory, Guests LANs, and domain management
  • Knowledge of multi‑domain architectures, including data center, WAN, and LAN in virtualized architectures
  • 1+ years of experience with performing systems administration Windows or Linux Administration, including performing basic troubleshooting and installation or configuration, monitoring system performance or availability, and performing security upgrades
  • TS/SCI clearance with the ability to obtain a counter‑intelligence polygraph.
  • Associate’s degree and 5+ years of experience supporting IT projects and activities, Bachelor’s degree and 3+ years of experience supporting IT projects and activities, or Master’s degree and 1+ year of experience supporting IT projects and activities. Years of experience may be accepted in lieu of degree.
  • DoD 8570 IAT Level II Certification, including Security+ CE, CCNA‑Security, GSEC, SSCP, CySA+, GICSP, or CND Certification.
  • Ability to obtain a DoD 8570 Cybersecurity Service Provider - Infrastructure Support Certification, including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND Certification, within 30 days of start date.
Additional Qualifications
  • Experience with deployment or daily maintenance of Forescout Counter

    ACT appliances
  • Knowledge of federal information security policies, standards, procedures, directives, frameworks, federal security authorizations, assessment, and risk management processes for enterprise systems
  • Ability to install and deploy Forescout in a customer environment
  • Ability to integrate Cybersecurity data using enterprise or custom tools data aggregation and analysis tools, including Splunk
  • Ability to provide support in a Tier II IT operations and maintenance role, including ticket work information updates, issue responses, and remediation
  • Ability to be a self‑starter, work without considerable direction, and work with a team
  • Possession of excellent verbal and written communication skills, including for coordinating efforts and establishing customer relations
Why GuidePoint?

GuidePoint Security is a rapidly growing, profitable, privately‑held value added reseller that focuses exclusively on information security. Since its inception in 2011, GuidePoint has grown to over 1,000 employees, established…

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