**MANTECH** seeks a motivated, career and customer-oriented **Principal Cyber Support Developer** to join our team in **Chantilly, VA** .

In this role 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:**

+ 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/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.

+ 7+ 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, and managing database schemas.

+ Experience applying schema security-hardening practices, including access controls, input validation, least-privilege permissions, secure configuration, and vulnerability mitigation.

+ Solid understanding of COTS CDS technologies on the NCDSMO approved product list.

+ Ability to apply security principles to systems and enterprise system designs.

+ Understanding of fundamental 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.

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.