Principal Cyber Support Developer

ManTech; Chantilly (VA); On-site; USD 130,000 - 170,000; Full time

Job summary

MANTECH is seeking a motivated Principal Cyber Support Developer to join our team in Chantilly, VA. You will lead technical operations, execute cybersecurity engineering solutions, and safeguard mission-critical enterprise systems across Defense programs.

Key activities include deploying Enterprise Cross Domain Solutions (CDS) using Linux and scripting, engineering new capabilities to boost performance and availability, supporting A&A activities, and developing remediation plans for CDS

Qualifications

• Bachelor’s degree or equivalent professional experience.
• 7+ years in systems engineering, cybersecurity operations, or software development.
• Proficiency with Linux and scripting; Lua scripting experience.

Responsibilities

• Lead technical operations and cybersecurity engineering solutions for mission-critical enterprise systems.
• Support and deploy Enterprise Cross Domain Solutions (CDS) across network domains.
• Engineer and deploy capabilities to improve system performance and availability.
• Support Assessment and Authorization (A&A) activities related to CDS technologies.
• Identify conflicts and develop remediation recommendations for CDS implementations.
• Contribute to milestones to meet customer requirements.
• Travel up to 25% annually to CONUS and OCONUS locations.

Skills

Linux administration

Scripting

Networking concepts

Education

Bachelor’s Degree or equivalent experience

Tools

Lua

Job description

MANTECH is seeking 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 part 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 (CDS), enabling secure data transfers across network domains.

• Engineer and deploy capabilities to provide new functionality, improve system performance and availability, and generate efficiencies in operational environment maintenance.

• Support Assessment and Authorization (A&A) activities related to CDS technologies.

• Identify potential conflicts with the implementation of CDS technologies within the enterprise and develop actionable recommendations for remediation.

• Contribute to the successful completion of milestones associated with specific projects to meet customer requirements.

• Develop and enforce plans to safeguard computer files against unauthorized modification, destruction, or disclosure.

• Travel up to 25% annually to CONUS and OCONUS customer locations as required.

Basic Qualifications:

• Bachelor’s Degree or 4+ years of additional direct experience in lieu of a degree.

• 7+ years of experience in systems engineering, cybersecurity operations, or software development.

• Proficiency in Linux systems administration and scripting.

• Demonstrated experience developing and maintaining Lua (LUA) scripts.

• Strong baseline understanding of networking concepts, including TCP/IP, firewalls, and routing protocols.

• Active DoD 8570/8140 IAT Level II certification (e.g., Security+ CE, GSEC, SSCP) or the explicit ability to obtain certification within 30 days of hire.

Preferred Qualifications:

• Deep understanding of cybersecurity architectural principles, including defense-in-depth, resilience, and integrated security operations.

• Hands-on experience designing, implementing, and managing database schemas.

• Demonstrated 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 listed on the NCDSMO Approved Products List (APL).

• Proven ability to apply security engineering principles to large-scale enterprise system designs.

• Familiarity with cloud computing concepts and virtualized networked environments.

• Experience with Information Assurance concepts and processes required to author documentation for Assessment and Authorization (A&A) frameworks.

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.

• Frequently communicates with co-workers, management, and customers; must be able to exchange accurate information in these situations, including delivering technical 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.