Senior Cyber Security Specialist

Computer Security System Specialist

ICF seeks a Computer Security System Specialist – Information Systems Security Officer (ISSO) to support a federal data and analytics program, focused on security compliance, system authorization, and continuous monitoring of enterprise data and analytics platforms.

Please note:

This role is contingent upon a contract award. The role is responsible for maintaining the security posture of systems and applications, ensuring compliance with federal cybersecurity requirements, and supporting Authority to Operate (ATO) processes. The ISSO will work closely with infrastructure, development, and operations teams to identify risks, remediate vulnerabilities, and ensure secure system operations.

Hybrid (Reston, VA area; onsite as needed)

• Support the security posture of enterprise systems and applications, ensuring compliance with federal security and privacy requirements.
• Develop, maintain, and update system security documentation, including System Security Plans (SSPs), POA&Ms, Privacy Threshold Assessments (PTAs), and related artifacts.
• Support Authority to Operate (ATO) processes, including security assessments, continuous monitoring, and authorization activities.
• Identify, track, and remediate security vulnerabilities and findings, ensuring timely resolution in accordance with DHS and federal standards.
• Support security scanning, vulnerability management tools, and remediation tracking across systems and environments.
• Collaborate with infrastructure, data, and development teams to ensure security is integrated into system design, deployment, and operations.
• Support audits and coordinate with security stakeholders to address findings and maintain compliance posture.
• Ensure compliance with data protection, privacy, and governance requirements for sensitive information.
• Maintain system security posture by supporting implementation of new security procedures and controls as required.
• Maintain and document security processes, configurations, and system changes.

• U.S. Citizenship required due to federal contract requirements.
• Ability to obtain and maintain a Public Trust clearance.
• Candidate must reside in the U.S. and be able to support onsite work in the Reston, VA area as needed.
• Candidate must have lived in the U.S. for three (3) full years out of the last five (5) years.
• Bachelor’s degree in Cybersecurity, Information Systems, Computer Science, or a related field.
• 6+ years of experience in information security, cybersecurity, or system security roles.
• 2+ years of experience supporting cloud or enterprise system security (AWS or similar environments).
• One or more of these Cybersecurity certifications required (e.g., CompTIA Security+, CISSP, or equivalent).

• Experience supporting DHS or other federal agencies.
• Current or recent Public Trust.
• 3+ years of experience supporting federal security frameworks (e.g., FISMA, NIST, or similar).
• 3+ years of experience supporting ATO processes, including documentation and continuous monitoring.
• 2+ years of experience working with vulnerability management, security scanning tools, or remediation processes.
• 2+ years of experience conducting risk assessments, security analysis, or compliance reviews.
• Experience with cloud security, identity and access management, or Dev Sec Ops  practices.
• Familiarity with security tools such as Tenable, Fortify, Sonar Qube, or similar.
• Understanding of data security, privacy, and governance in large-scale data environments.
• Additional certifications in cloud security or information assurance.

• Strong analytical and problem‑solving skills.
• Attention to detail with focus on security, compliance, and risk mitigation.
• Strong communication skills across technical and non‑technical stakeholders.
• Ability to manage multiple priorities in a fast‑paced environment.
• Ability to work collaboratively across cross‑functional teams.

$98,187.00 - $
Reston, VA (VA30)

We are an equal opportunity employer. We will consider for employment qualified applicants with arrest and conviction records. Reasonable accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.