Senior Cyber Security Engineer

General information

Requisition # R61576 Locations USA-VA-Chantilly Posting Date 07/03/2025 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 is seeking a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in the Chantilly, VA. 

Responsibilities include but are not limited to:

• Provide IA security requirements to update system requirement documents
• Coordinate IA matters with other directorates and external partners as necessary
• Perform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations and recommend mitigation strategies.
• Validate and verify system security requirements definitions, analysis, and establish system security designs
• Validate proposed software, hardware, firmware, and infrastructure comply with security guidelines, policies, and procedures
• Apply knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environments.
• Toolkits, SEIMs, LogRhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e. g. SE Linux extensions to RHEL, PitBull, and Windows), Oracle/MS SQL database security, and Apache/IIS Web server security.
• Support security planning, assessment, risk analysis, and risk management.
• Identify overall security requirements for the proper handling of Government data.
• Contribute to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations.
• Configuration Management, LifeCycle Management and SharePoint familiarity.

Minimum Qualifications:

• Bachelor’s degree or 4+ years of additional professional experience in lieu of degree
• 5+ years of cyber experience
• Experience with ISSE
• Familiarity with Certification & Accreditation (C&A) processes
• Knowledge of Department of Defense (DoD) policy and technical security guidance applicable to information systems
• DoD Directive 8570.1 IAT Level II or higher certification, or ability to obtain within 6 months

Security Clearance Requirements:

• Must have a current/active TS/SCI with 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.