Senior Cybersecurity Engineer (Zero Trust & Continuous Monitoring)

We are seeking a highly experienced Senior Cybersecurity Engineer to support enterprise Zero Trust maturity, continuous monitoring operations, and vulnerability lifecycle management across federal networks. The ideal candidate will have deep hands-on experience in DHS or DoD environments, proficiency with ACAS/Tenable, Archer GRC, and endpoint security technologies, as well as the ability to lead technical initiatives and mentor junior analysts. This role is critical to strengthening our security posture and ensuring compliance with NIST, ICD 503, CNSS, and RMF frameworks.


Responsibilities

• Lead continuous monitoring operations across enterprise networks, systems, and user accounts using tools such as Archer GRC, Nessus, ACAS, and Tenable SC
• Develop and maintain automated cyber risk dashboards, heat maps, and risk registers to support senior-leadership decision-making
• Engineer and implement Zero Trust-aligned security controls, endpoint protections, and automated monitoring capabilities
• Conduct vulnerability scanning, reporting, mitigation tracking, and POAM management across multiple enclaves
• Support system Authorization to Operate (ATO) activities, ensuring compliance with NIST 800-53, ICD 503, and CNSS 1253
• Perform root-cause analysis on findings, develop remediation plans, and collaborate with system owners to reduce risk
• Train and mentor cybersecurity analysts on emerging tools, dashboards, and best practices
• Participate in Command Cyber Readiness Inspections (CCRI) and internal audits
• Maintain accurate asset inventories and support enterprise configuration compliance
• Interface with internal customers, contractor partners, and federal leadership on cybersecurity initiatives

• Bachelor's with 12+ years of cybersecurity engineering experience (or commensurate experience)
• 12+ years of experience in cybersecurity engineering, continuous monitoring, information assurance, or vulnerability management
• Strong understanding of Zero Trust Architecture, risk management, and continuous diagnostics
• Hands-on experience with Archer GRC, Tenable SC/ACAS/Nessus, endpoint security tools, and SIEM/monitoring platforms
• Demonstrated experience preparing ATO packages and working within NIST/ICD/CNSS frameworks
• Experience in federal environments such as DHS, DoD, or Intelligence Community
• Ability to communicate complex technical issues to non-technical leadership
• Prior experience developing dashboards and automated cyber metrics
• Strong networking fundamentals (Cisco, VLANs, firewalls)
• Clearance Required: Active TS/SCI clearance

• Experience supporting DHS Cybersecurity operations
• AWS Cloud experience; AWS certification (or in progress)
• Experience designing or deploying Zero Trust security controls
• Background in network operations or secure communications engineering