Senior Cyber Security Engineer

General information

Requisition #

R70438

Locations

USA-VA-Chantilly

Posting Date

09/02/2026

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.

You will play a vital role in leading technical operations, executing cyber security engineering solutions, and safeguarding mission-critical enterprise systems.

Responsibilities include but are not limited to

• Assist in the creation of fully developed project schedules utilizing the Enterprise Scheduling Service platform (ESS) built on Microsoft Project.
• Assist with creating quality briefing decks, including detailed cost estimates, for senior leadership presentation.
• Author and organize document deliverables, perform customer engagement, document technical requirements, and manage customer communications.
• Coordinate the engineering, integration, and administration functions required to deliver capabilities, documentation, and services to the operational and engineering baseline.
• Ensure that all aspects of projects are completed and delivered according to the implementation plan and schedule.
• Coordinate the build-out and testing of sophisticated applications and tools in virtual and physical environments.
• Manage incident/request ticket queues through ServiceNow and assist with the management of Tier 2-4 support to customer systems, to include potential after-hours and weekend support.

Minimum Qualifications

• Bachelor's Degree or 4+ years of additional experience in lieu of degree.
• 5+ years of relevant cyber security work experience, including direct experience with Risk Management Framework (RMF).
• Experience managing or leading small to medium sized teams supporting engineering operations
• Experience with tools such as Jira, Confluence, Microsoft Office products, or similar project management and collaboration platforms
• Ability to demonstrate understanding and appropriate application of DoD/IC policy and technical security guidance to information systems
• Must hold an active IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security) or have the ability to obtain it within 6 months of hire.

Preferred Qualifications

• Managerial and leadership experience leading small to medium technical teams.
• General knowledge of security technologies such as vulnerability management, intrusion detection/prevention, log monitoring, and endpoint protection.
• Previous System Administrator (SA) or systems engineering experience.
• Ability to effectively interact with various levels of senior management to clearly articulate ideas for executive-level and technical staff consumption.
• Ability to function in a fast-paced environment and effectively manage multiple tasks simultaneously, coordinating resources and ensuring scheduled goals are met

Clearance Requirements

• Must possess an active TS/SCI with a polygraph.

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer.
• The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $114,600.00-$190,200.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH 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.