Job Description

General information

Requisition #

R70795

Locations

USA-VA-Chantilly

Posting Date

09/15/2026

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 Support Developer to join our team in Chantilly, VA.

In this role you will play a vital role in leading technical operations, executing cybersecurity engineering solutions, and safeguarding mission-critical enterprise systems.

Responsibilities include, but are not limited to:

• Utilize Linux and scripting experience to support and deploy Enterprise Cross Domain Solutions, enabling secure data transfers.
• Engineer and deploy capabilities to provide new functionality, improve system performance and availability, and generate efficiencies in operational environment maintenance.
• Support Assessment and Authorization activities related to CDS technologies.
• Identify potential conflicts with implementation of CDS technologies within the enterprise and develop recommendations to remediate these conflicts.
• Contribute to the completion of milestones associated with specific projects to meet customer requirements.
• Develop plans to safeguard computer files against unauthorized modification, destruction, or disclosure.
• Travel up to 25% of the year to CONUS and OCONUS customer locations as required.

Minimum Qualifications:

• Bachelor’s Degree or 4+ years of additional experience in lieu of degree.
• 5+ years of experience in systems engineering, cybersecurity operations, or software development.
• Proficient in Linux systems administration and scripting.
• Demonstrated experience developing and maintaining Lua (LUA) scripts.
• Experience in networking concepts, including TCP/IP, firewalls, and routers.
• Must hold an active IAT Level II certification (e.g., GSEC, Security+, SSCP; CISSP preferred) or have the ability to obtain it within 30 days of hire.

Preferred Qualifications:

• Knowledge of cybersecurity architectural principles such as defense in depth, resilience, and integrated security operations.
• Experience designing, implementing, managing database schemas, and applying security-hardening practices (access controls, input validation, vulnerability mitigation).
• Solid understanding of COTS CDS technologies on the NCDSMO approved product list.
• Ability to apply security principles to systems, enterprise designs, cloud computing, and virtualized networked environments.
• Experience with Information Assurance concepts and processes to prepare documentation for Assessment and Authorization activities.

Clearance Requirements:

• Must possess an active TS/SCI with 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.