Cyber Security Engineer — Federal Mission Support

FTS International, LLC; Chantilly (VA); On-site; USD 149,000 - 170,000; Full time

Benefits offered by this job

Health Insurance

Paid Time Off

Life Insurance

Disability Insurance

Retirement Plan

Learning & Development

Wellness Programs

Job summary

FTS International, LLC invites an experienced Cyber Security Engineer to Chantilly, VA to provide technical and program services to the US Government. You will support authorization, monitoring, patching, and hardening across connected systems.

The role requires TS/SCI with polygraph, a BS STEM, and 9+ years of relevant experience, plus security certifications. Strong scripting, RMF knowledge, and communication skills are essential.

Qualifications

• TS/SCI clearance with polygraph is required.
• BS STEM in engineering is required.
• 9+ years of relevant experience.
• Security+, CISM, or CISSP certifications are required.
• Experience with vulnerability assessment tools (Nessus/ACAS/SCAP) is required.
• Experience with scripting for automating patches and hardening tasks.
• Knowledge of NIST RMF is required.
• Strong analytical and communication skills.

Responsibilities

• Support systems security authorization and continuous monitoring for assigned systems.
• Prepare, review, and submit security authorization packages (SSPs/POA&Ms).
• Use patch deployment tools and hardening guidelines to ensure security compliance.
• Apply STIGs and vendor hardening guides.
• Conduct vulnerability scans and remediation actions.
• Implement cloud-based patching and hardening techniques.
• Implement security controls (e.g., VLANs, firewalls, encryption).
• Analyze vulnerability findings and track remediation progress.
• Maintain security documentation and change history.
• Track risks, POA&Ms, and remediation status.
• Facilitate stakeholder meetings and provide risk status reports.
• Collaborate to improve security posture across federated network.

Skills

TS/SCI with polygraph

9+ years experience

Critical thinking

Interpersonal & communications

Scripting for patches

Education

BS STEM in engineering

Security+, CISM, or CISSP

Tools

Nessus

ACAS

SCAP

Job description

FTS International, LLC invites an experienced Cyber Security Engineer to Chantilly, VA to provide technical and program services to the US Government. You will support authorization, monitoring, patching, and hardening across connected systems.

The role requires TS/SCI with polygraph, a BS STEM, and 9+ years of relevant experience, plus security certifications. Strong scripting, RMF knowledge, and communication skills are essential.