Principal Cyber Engineer; TS​/SCI w​/FSP Security Clearance

Position: Principal Cyber Engineer (TS/SCI w/FSP Required) with Security Clearance
Location: Southern Md Facility

Trusted Connectivity for AI-Powered Dominance. Everfox delivers trusted connectivity to protect the world's most critical environments and safeguard the sensitive data powering decision advantage. Built for mission-critical operations, Everfox protects what matters most by securing how data moves, how users access it, and how threats are neutralized across every domain. We enable mission speed and secure collaboration across networks, domains, and allies, while ensuring the data powering AI and advanced analytics remains trusted and protected.

We don't just defend systems; we deliver decision dominance.
* Our Purpose. Protect what matters most by enabling organizations to operate security in the most complex and high-risk digital environments.
* Our Vision. To be the most trusted authority in high-assurance cybersecurity, enabling secure collaboration across every domain.
* Our Belief. Security should never limit mission success - it should enable it. Our Promise. We deliver absolute confidence in environments where failure is not an option.

Job Title:

Principal Cyber Engineer

Location:

On-site Columbia, MD

About the role:

Everfox is seeking talented cyber engineers motivated to help customers solve complex and fast-moving cybersecurity challenges supporting the U.S. Government. Focusing on proven Everfox Cross Domain solutions, you will interface directly with customers and play a key role in designing and deploying enterprise Cross Domain solutions to ensure customer success. The successful candidate will receive specialized training to support Everfox technologies.

Location:

Columbia, MD - at the customer location (To protect the privacy of our customers, we do not share names or exact locations until the appropriate security and onboarding process is complete).

Key Responsibilities:

* Utilize Linux and scripting expertise to support and field critical customer-driven requirements enabling secure data transfer.

* Engage directly with customers to provide advanced design, analysis, and implementation of Everfox software.

* Review, analyze, and define requirements; design integrated solutions; implement Everfox and non-Everfox technologies; integrate multiple tools across disciplines; perform formal security and functional testing.

* Troubleshoot technical issues hands-on in Linux-based environments, using and configuring Everfox solutions to deliver critical customer requirements.

* Work on complex network environments, troubleshooting issues, designing and implementing failover capabilities, and validating interoperability with other enterprise components.

* Provide technical briefings to customers and Everfox leadership as required.

* Deliver training, troubleshooting, and on-site/remote support for mission-specific requirements.

Work Schedule:

Full-time, Monday-Friday (standard work schedule with flexibility for mission-critical requirements).
This position requires minimal travel-up to 10% domestic travel as needed to meet customer and project requirements. Key Knowledge and

Skills:

* Active TS/SCI clearance with Full Scope Polygraph (required).

* 8+ years of experience in a cyber engineer role supporting enterprise software solutions.

* Strong experience in Linux and scripting.

* Excellent communication skills and ability to relay technical information to customers and laypersons.

* Interest or experience in cybersecurity practices, methodologies, associated technologies, application design and development, or operational environments.

* Working knowledge of networking concepts (e.g., TCP/IP, firewalls, routers, etc.).

* BS in Computer Science, Computer Engineering, Information Security, or equivalent.

* DoDI 8570.1-M Compliance at IAT Level I; SANS GSEC, CISSP preferred.
Nice to Have:
* Experience with security design and architecture of Cross Domain Solutions (CDS).

* Working knowledge of virtualized and networked environments.

* Strong verbal and technical writing skills.

* Experience with security COTS product integration (e.g., firewall, web gateways, Data Loss Prevention).

* Ability to prepare documentation to support Assessment and Authorization (A&A) activities.

* Apply knowledge of current Information…