Senior Cyber Security Engineer

General information

Requisition # R60643 Locations USA-VA-Chantilly Posting Date 05/29/2025 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with ManTech! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with ManTech!

ManTech seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA.

Responsibilities include but are not limited to:

• Responsible for the operations and maintenance of deployed Enterprise Cross Domain Solutions
• Engineers and deploys capabilities to provide new functionality, improve system performance/availability, and for generating efficiencies in the maintenance of the operational environment
• Provides Tier 2/3 maintenance support for deployed Cross Domain Solutions (CDS) interface technologies
• Supports Assessment and Authorization activities related to CDS technologies
• Identifies potential conflicts with implementation of CDS technologies within the enterprise and develops recommendations to remediate these conflicts
• Contributes to the completion of milestones associated with specific projects
• Provides solutions to a variety of complex technical problems
• Develop plans to safeguard computer files against unauthorized modification, destruction, or disclosure

Minimum Qualifications:

• Bachelor's Degree or 4+ years of additional experience in lieu of degree
• 5+ years of cyber experience
• Experience with Linux operating systems
• Knowledge of general operating system security practices, TCP/IP networking, and network security concepts
• IAT Level II certification or willing to obtain within 6 months of hire

Demonstrated technical experience:

• Knowledge of CDS technologies on the NCDSMO approved products list
• Knowledge with cybersecurity architectural principles such as defense in depth, resilience, and integrated security operations
• Knowledge of database and operating system security
• Knowledge of defensive cyber operations
• Ability to apply security principles to the systems and enterprise system designs

Clearance Requirements:

• Must have a current/active TS/SCI w/Polygraph

Physical Requirements:

• The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

ManTech International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with ManTech, please email us at careers@mantech.com and provide your name and contact information.