Computer Security Systems Specialist

By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide.

Position Overview

The program delivers end-to-end EFIS&T services—including survey and design through installation, security, and testing. This work spans NIPR and SIPR networks, Wi-Fi, VoIP, ISP/OSP infrastructure, and voice modernization across all CONUS Army installations.

We’re looking for a Computer Security Systems Specialist to design, document, and implement cybersecurity controls for Army enterprise networks. You’ll ensure systems are engineered and configured to meet DoD, Army, and DISA security requirements, and you’ll support fielded systems through assessment, approval, and operational deployment.

You’ll work closely with engineering teams, program leadership, and cybersecurity authorities to deliver secure, compliant systems ready for operational use.

Responsibilities

• Design and plan security measures to protect systems and networks in accordance with DISA STIGs/SRGs, IAVAs, and DoDI 8100.04
• Research, maintain, and manage cybersecurity artifacts, including:
  • STIG checklists
  • Approved operating system versions
  • POA&Ms
  • Hardware and software inventories
  • Test, training, implementation, and transition/migration plans
  • Installation team checklists
• Align security controls with NIST 800-53 and CIS Benchmarks
• Provide required cybersecurity artifacts to the GENM-A ISSM for review and approval
• Develop and deliver system and network diagrams (topology, physical, logical, data flow) in support of CDRL requirements
• Support vulnerability assessments, penetration testing, and implementation of IDS/IPS solutions
• Configure and validate security controls, including firewall rules and access control lists

Required Experience/Qualifications

• Bachelor’s degree in Cybersecurity, Information Assurance, or a related IT field
  Four (4) additional years of relevant experience may be substituted in lieu of a degree
• 10+ years of cybersecurity or information assurance experience, including 2+ years leading cyber or IA personnel or teams
• Meets DoD 8570 IAT Level III certification requirements

Preferred Experience/Qualifications

• Certifications and/or experience in Zero Trust architectures

Special Requirements/Security Clearance

• Active TS/SCI at the time of application
• Travel up to 25%, as required

Physical Demands

• Ability to lift up to 30 lbs

By Light recognizes that our strength is our people. We support every employee as an individual to build strong teams across the enterprise. Our benefit package includes:

• Medical, Dental & Vision Coverage
• Wellness Program
• 401(k) Matching
• Disability (Short Term & Long Term)
• Employee Assistance Program
• Life Insurance
• Education & Training
• Generous Leave Policy (11 Federal Holidays, PTO, and Military Leave)