Principal Cyber Engineer (TS/SCI w/FSP Required)
Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Jul 17, 2026. Everfox scores A on the Alion truth index.
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 Assurance (IA) policies as a contributor to the architecture and design of secure solutions to customer needs and requirements.
A reasonable estimate of the base salary range for this role is: $183,600-$221,600 USD Annual
A reasonable estimate of the base salary range for this role is:
The actual salary offered may vary within the range based on a candidates' unique experience, locale, and business needs. In addition to a base salary and bonus plans, Everfox offers a generous benefits package including flexible PTO, a 401k match, and contribution to healthcare coverages. Our Talent Acquisition team will provide specific information regarding bonus eligibility and benefits offerings.
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Don’t meet every single qualification? Studies show people are hesitant to apply if they don’t meet all requirements listed in a job posting. If there is something slightly different about your previous experience, but it otherwise aligns and you’re excited about this role, we encourage you to apply. You could be a great candidate for this or other roles on our team.
Everfox is an equal employment opportunity employer and complies with all applicable federal, state, and local laws prohibiting discrimination. Everfox does not discriminate against any employee or applicant based on race, color, religion, sex, age, national origin, disability, veteran status, marital status, medical condition, or any other category protected by applicable law. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access the Company’s career webpage as a result of your disability. You may request reasonable accommodations by sending an email to [email protected].
Everfox is a Federal Contractor. Certain positions with Everfox require access to controlled goods and technologies subject to the International Traffic in Arms Regulations or the Export Administration Regulations. Applicants for these positions may need to be "U.S. Persons," as defined in these regulations. Generally, a "U.S. Person" is a U.S. citizen, lawful permanent resident, or an individual who has been admitted as a refugee or granted asylum.
Applicants must have the right to work in the location to which you have applied.
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