Sr. Systems Security Engineer

Argo Cyber Systems • Dahlgren, VA

11h

About The Position

Argo Cyber Systems is seeking a Senior Cybersecurity Engineer with specialized experience supporting U.S. Department of Defense (DoD) and U.S. Navy cybersecurity programs. The ideal candidate will possess hands-on expertise in vulnerability analysis, STIG implementation, risk assessments, and system accreditation , as well as the ability to conduct and lead TEMPEST testing in accordance with national standards. This position plays a critical role in ensuring mission assurance, data protection, and compliance across classified and unclassified information systems. This position contingent on contract award.

Requirements

• Education: Bachelor's degree in Information Technology, Cybersecurity, Computer Science, or related field (or equivalent military training/experience).
• Experience: Minimum of 6 years of professional experience supporting DoD or U.S. Navy IT security operations.
• Certifications: Must meet DoD 8570.01-M IAT Level III requirements (e.g., CASP+, CISSP, CISA, or GCED).
• Clearance: Active Top Secret (T5 Investigation) or eligibility to obtain.
• Proficiency with: DISA STIGs, SCAP Compliance Checker (SCC), and ACAS/Nessus vulnerability scanners
• TEMPEST testing methodologies and National TEMPEST Standards
• DoD RMF and system accreditation processes (eMASS, Xacta, or equivalent)

Nice To Haves

• Experience with Navy networks and enclave systems (e.g., FLANK SPEED, CANES, NMCI).
• Familiarity with DoD ATO packages, POA&Ms, and continuous monitoring .
• Prior work supporting NAVWAR, SPAWAR, or C5ISR environments.
• Additional certifications such as CISSP-ISSEP, CISM, CEH, or Security+ CE .

Responsibilities

• Perform comprehensive vulnerability and risk analyses for DoD/Navy information systems, identifying exploitable weaknesses and developing mitigation plans.
• Execute SCAP scans , interpret results, and implement remediation actions in line with DISA STIG requirements.
• Develop and apply system hardening baselines for operating systems, network devices, and applications.
• Conduct virus, malware, and malicious code scanning , ensuring system and network hygiene.
• Lead or support system accreditations, ATO/ATC processes, and cybersecurity audits in accordance with DoD RMF guidance (NIST SP 800-53 / 800-37).
• Conduct and lead TEMPEST testing using approved test plans, production test procedures, and the current National TEMPEST Standard , documenting findings and recommendations.
• Prepare detailed reports, risk assessments, and compliance documentation for government review.
• Collaborate with system owners, ISSMs, and network engineers to ensure secure design, configuration, and operation of all systems.
• Maintain situational awareness of evolving DoD/Navy cybersecurity directives, policies, and tools.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level