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Senior Network Security Engineer

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: GuidePoint Security
Full Time position
Listed on 2026-07-24
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security
Salary/Wage Range or Industry Benchmark: 100000 - 130000 USD Yearly USD 100000.00 130000.00 YEAR
Job Description & How to Apply Below

Job Overview

The Senior Network Security Engineer will engineer, design, and sustain Comply-to-Connect (C2C) deployment support to migrate and maintain critical services across unclassified and classified environments.

Key Responsibilities
  • Engineering, designing, and implementing C2C deployment support while managing the appliances, servers, and supporting infrastructure.
  • Coordinating with the network service provider to develop and maintain comprehensive network architecture diagrams.
  • Evaluating and recommending technology upgrades to address performance, standardization, and industry best practices.
  • Monitoring and investigating C2C performance and faults to recommend and implement necessary improvements.
  • Interacting with team members and customers at multiple levels to gather and coordinate vital technical information.
  • Supporting Assessment and Authorization (A&A) activities related to cybersecurity technologies and system accreditation.
Requirements
  • An active TS/SCI with Polygraph is required.
  • Bachelor’s degree or 4+ years of additional experience in lieu of a degree.
  • 5+ years of experience in Information Systems Security and/or Cyber Engineering.
  • Experience with technologies involved in large‑scale enterprise deployments and data center environments.
  • Experience deploying enterprise security software products such as firewalls, IPS, Anti‑Virus, and network management systems.
  • Knowledge of Windows and Linux systems, TCP/IP networking, 802.1x, and general network security concepts.
  • IAT Level II (GSEC, Security+, SSCP, or CCNA‑Security) certification or the ability to obtain it within 6 months of hire.
Preferred Qualifications
  • Certified Information Systems Security Professional (CISSP) certification.
  • Experience implementing vendor‑agnostic C2C capabilities and services within DoD engineering and sustainment environments.
  • Proficiency with Cisco Identity Services Engine (ISE) and tools such as Nmap, Nessus, and tcpdump.
  • Knowledge of Shell, Perl, and XML Scripting to automate security tasks.
Physical Qualifications
  • Must be able to remain in a stationary position 50% of the time.
  • Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicates with co‑workers, management, and customers, which may involve delivering presentations.
  • Must be able to exchange accurate information in these situations.

Applicants selected will be subject to a security investigation and must meet eligibility requirements for access to classified information.

Benefits
  • Remote workforce primarily (U.S. based only, some travel may be required for certain positions; on‑site work may be required for federal positions).
  • Group Medical Insurance options:
    Zero Deductible PPO Plan (GuidePoint pays 90% of employee premium and 70% of family plans) or High Deductible Health Plan with HSA (GuidePoint pays 100% of employee premiums and 75% of family plans).
  • Group Dental Insurance:
    GuidePoint pays 100% of employee premium and 75% of family plans.
  • 12 corporate holidays and a Flexible Time Off (FTO) program.
  • Healthy mobile phone and home internet allowance.
  • Eligibility for retirement plan after 2 months at open enrollment.

As set forth in GuidePoint Security’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

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Position Requirements
10+ Years work experience
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