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# Senior Cyber Support Developer

- **Company:** Mantech International Corporation
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Cloud Computing, Cyber Security, Computer Networks, Data Validation, Data Security, Database Schema, Linux, Linux System Administration, Lua (Scripting Language), Office Suite, Software Engineering, TCP/IP, Software Vulnerability Management, Network Routers, Scripting, Firewalls (Computer Science)
- **Published:** October 10, 2026
- **Apply:** https://www.nettemps.com/us/en/W0380C3AE8BF0B6E4D2.ntap

## About the Role

MANTECH seeks a motivated, career and customer-oriented Senior Cyber Support Developer to join our team in Chantilly, VA., * 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 (eg, GSEC, Security+, SSCP; CISSP preferred) or have the ability to obtain it within 30 days of hire., * 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.

## Description

* 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.