Senior Security Risk Management Engineer

Tharros is seeking a Senior Security Risk Management Engineer to support a DHS cybersecurity program in the National Capital Region.

This role will support enterprise cybersecurity risk management, Assessment and Authorization, continuous monitoring, FISMA compliance, secure cloud and hybrid engineering, and risk-based decision support across a complex mission environment. The ideal candidate can help translate security data, authorization evidence, vulnerabilities, POA&M status, and compliance requirements into clear risk insights and actionable remediation priorities.

Responsibilities:

• Support enterprise cybersecurity risk management across classified and unclassified mission environments.
• Lead or support Assessment and Authorization activities for Federal information systems.
• Support security control assessments aligned to NIST, CNSSI, Intelligence Community, and Federal cybersecurity requirements.
• Review and validate security artifacts, including System Security Plans, Security Assessment Plans, Security Assessment Reports, POA&Ms, and authorization evidence.
• Support POA&M development, validation, remediation tracking, closure, and reporting.
• Collaborate with system owners, ISSOs, developers, engineers, assessors, and other stakeholders to address findings and strengthen security posture.
• Provide risk mitigation recommendations for assigned systems, networks, applications, and environments.
• Support continuous monitoring activities that maintain system security posture over time.
• Help improve and automate A&A, continuous monitoring, evidence management, and risk reporting processes.
• Support quality reviews and process improvements for authorization documentation and security control implementation.
• Translate complex security, compliance, and technical data into leadership-ready risk insights, dashboards, briefings, and remediation recommendations.
• Support risk management activities across cloud, hybrid, cross-domain, and secure mission environments.

Requirements:

• Active Top Secret clearance with contingency on DOD CAS granting SCI eligibility.
• 10+ years of related cybersecurity risk management experience.
• At least 2 years of recent experience in each of the following areas: A&A, FISMA compliance, IC cybersecurity policy and standards, continuous monitoring, CDS, and secure cloud and hybrid engineering.
• Experience with emerging and evolving security risk management practices, including automation of A&A and continuous monitoring activities.
• Experience applying NIST 800 series, CNSSI 1253, security controls, and RMF principles.
• CISM, CAP, or GRC certification, or comparable demonstrable experience.
• Experience developing, reviewing, or supporting authorization artifacts such as SSPs, SAPs, SARs, POA&Ms, risk assessments, control implementation evidence, and continuous monitoring reports.
• Strong written and verbal communication skills, including the ability to explain risk, compliance status, and remediation needs clearly.
• Ability to work onsite at a Government-approved location as required.

Preferred Qualifications:

• Prior DHS, Intelligence Community, DoD, CISO office, ISSM, AO, SCA, or national security cybersecurity risk management experience.
• Experience with enterprise RMF/A&A portfolios, ConMon automation, ATO/ATC readiness, POA&M quality, risk dashboards, GRC workflows, and evidence automation.
• Experience with AWS, Microsoft Azure, Microsoft 365, or other cloud platforms.
• Experience supporting classified, hybrid cloud, cross-domain, TS/SCI, or secure mission environments.
• Experience turning vulnerability, threat, audit, compliance, system criticality, and continuous monitoring data into decision-ready risk insights.