Senior Cyber Engineer (TS/SCI Required)

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: Senior Cyber Engineer

Primary Work Location*: NCR/DC region

Workdays: Monday-Friday

Fulltime Onsite (No telework or alternate work location available)

Work Hours: 8 hours per day starting between 6am - 9am (Occasionally, weekend support may be required to facilitate installations and upgrades.)

About the Role:

The Senior Cyber Engineer supports a dedicated customer site in the DC area as part of Everfox’s growing professional services engineering team. This high-impact role requires hands‑on technical expertise, independence in troubleshooting, and effective communication with both the customer and Everfox leadership. The engineer provides SME-level support across endpoint security solutions (HBSS, Tanium, Digital Guardian, etc.) and ensures the operational stability, security, and performance of Everfox appliances and supporting infrastructure.

Location: This is a full-time, on-site role in the NCR. No telework or alternate work location is available. For security reasons, the specific customer location is not listed; full details are provided upon employment and indoctrination.

Key Responsibilities:

• Installs, maintains, and troubleshoots Windows and RHEL 8.x operating systems supporting Everfox appliances in both physical and virtual environments.
• Creates, maintains, and troubleshoots virtual hosts running on ESXi or Hyper-V.
• Monitors and troubleshoots performance issues impacting Everfox products onsite.
• Reviews and remediates security vulnerabilities or controls based on STIGs or scanning reports.
• Installs firmware updates on physical hardware including DellEMC and HPE servers, SANs, switches, firewalls, and other components.
• Collaborates with product support and development teams to resolve issues or bugs identified in customer‑deployed products.
• Works directly with onsite government, contractor, or subcontractor staff as first‑line support for deployed products.
• Performs regular health checks and monitoring of Kubernetes clusters, using tools such as Grafana to track performance metrics.
• Reviews logs proactively to identify and resolve issues before escalation.
• Deploys, monitors, troubleshoots, and optimizes endpoint security solutions, ensuring correct policy and system configuration.
• Applies broad understanding of enterprise infrastructure (data centers, networking, operations, security) to collaborate effectively across domains.
• Develops, explains, and maintains software deployment plans.
• Communicates daily with customers and Everfox management, providing activity summaries and detailed trip reports when applicable.
• Supports physical hardware tasks such as lifting, racking, and cabling.
• Performs other duties as assigned.

Key Knowledge and Skills:

• Active TS with SCI or SCI eligibility within two years from last use.
• At least one DoD 8140 Cyber Workforce Qualification Program certification (IAT level II or higher).
• Ability to meet work authorization requirements under U.S. ITAR or EAR regulations.
• Windows and RHEL 8.x installation, maintenance, troubleshooting.
• Product support and development team collaboration for issue resolution.
• ESXi or Hyper-V virtual host management.
• Appliance performance monitoring and troubleshooting.
• Security vulnerability remediation aligned with STIGs or scan reports.
• Firmware installation across major server and network hardware.
• First‑line support with government and contractor personnel.
• Daily communication and reporting to customers and internal management.
• Physical hardware handling (lifting, racking, cabling).
• Deep understanding of: Windows OS services and service accounts.
• Routing, switching, firewall rules, and TCP/UDP/SSH/FTP/SCP/ protocols.
• Certificate creation, renewal, installation, and troubleshooting.
• Server hardware installation, patching, and maintenance.

Key Education Requirements:

Bachelor’s degree in computer science, information systems, cybersecurity, or equivalent experience.

8+ years of relevant professional experience.

Salary and Benefits:

A reasonable estimate of the base salary range for this role is: $151,800.00-187,500.00 USD

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.

Company Commitment to Diversity and Inclusion:

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 View email address on click.appcast.io.

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.

Company Additional Information:

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.