Systems Security Engineer

Argo Cyber Systems is seeking a Systems Security Engineer to support enterprise and mission-critical Department of Defense (DoD) and U.S. Navy programs. The selected engineer will apply deep knowledge of vulnerability management, system accreditation, and risk analysis to ensure the confidentiality, integrity, and availability of government systems and data. This position integrates cybersecurity engineering principles into the full system lifecycle-from architecture design and implementation to continuous monitoring and audit support-helping our clients maintain compliance with DoD cybersecurity frameworks.

This position is contingent on contract award.

Key Responsibilities

• Conduct vulnerability assessments and perform in-depth risk analyses of DoD and Navy information systems.
• Execute malware and virus scanning , remediation, and system hygiene verification using approved DoD tools and baselines.
• Support the development, review, and maintenance of System Security Plans (SSPs) , POA&Ms , and related RMF artifacts.
• Participate in the accreditation and assessment of systems to ensure compliance with DoD and NIST 800-series standards.
• Analyze vulnerability and compliance data from SCAP, ACAS / Nessus, and DISA STIGs to identify and mitigate security gaps.
• Collaborate with system administrators and network engineers to integrate security controls into system architectures.
• Support internal and external cybersecurity audits , developing evidence packages and implementing corrective actions.
• Provide security input throughout the system development lifecycle (SDLC) , including change management and configuration control reviews.
• Maintain awareness of evolving DoD cybersecurity directives, policies, and vulnerability management tools.
• Ensure all activities align with DoD 8570.01-M IAT Level II standards and applicable Navy cybersecurity regulations.

Required Qualifications

Vulnerability scanning and analysis (ACAS / Nessus, SCC, STIG Viewer).

Preferred Qualifications

About Argo Cyber Systems

Argo Cyber Systems, LLC is a Service-Disabled Veteran-Owned Small Business (SDVOSB) delivering advanced cybersecurity engineering, compliance, and systems integration support to the U.S. Government. Our professionals secure mission networks, strengthen resilience, and enable Zero Trust modernization for DoD and Federal clients nationwide.

Argo Cyber Systems, LLC is an equal opportunity employer!

Background & Drug Screening Disclaimer

© Argo Cyber Systems, LLC - All Rights Reserved

Argo Cyber Systems, LLC is committed to maintaining a safe, secure, and trusted workplace for all employees and our federal clients. Employment with Argo Cyber Systems is contingent upon successful completion of all required background investigations and pre-employment screenings , which may include, but are not limited to :

Criminal background checks (federal, state, and local)

Employment and education verification

Reference checks

Drug screening (in compliance with federal and state law)

Security clearance verification (as applicable for classified positions)

Candidates selected for employment in positions requiring access to sensitive or classified information may also be subject to additional U.S. Government background investigations and security adjudication processes , including DHS Entry on Duty (EOD) suitability or equivalent federal clearance requirements.

Argo Cyber Systems reserves the right to disqualify or rescind an offer of employment based on the results of any background or screening process that, in the company's judgment, may impact an individual's ability to perform essential job functions or meet contractual obligations.

All background investigations and screenings are conducted in accordance with applicable federal, state, and local laws, including the Fair Credit Reporting Act (FCRA) . Candidates will be notified of their rights and provided an opportunity to review and dispute any adverse findings before final employment determinations are made.

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