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Senior Cyber Security Specialist

IcfReston, VAMay 17th, 2026
DescriptionComputer Security System SpecialistPlease note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award.The WorkICF 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.This 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.Job Location:Hybrid (Reston, VA area; onsite as needed)What You Will DoSupport 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.What You Will Bring With YouU.S. Citizenship required due to federal contract requirementsAbility to obtain and maintain a Public Trust clearanceCandidate must reside in the U.S. and be able to support onsite work in the Reston, VA area as neededCandidate must have lived in the U.S. for three (3) full years out of the last five (5) yearsBachelor’s degree in Cybersecurity, Information Systems, Computer Science, or a related field6+ years of experience in information security, cybersecurity, or system security roles2+ years of experience supporting cloud or enterprise system security (AWS or similar environments)One or more of these Cybersecurity certification required (e.g., CompTIA Security+, CISSP, or equivalent)What We Would Like You To Bring With YouExperience supporting DHS or other federal agenciesCurrent or recent Public Trust3+ years of experience supporting federal security frameworks (e.g., FISMA, NIST, or similar)3+ years of experience supporting ATO processes, including documentation and continuous monitoring2+ years of experience working with vulnerability management, security scanning tools, or remediation processes2+ years of experience conducting risk assessments, security analysis, or compliance reviewsExperience with cloud security, identity and access management, or DevSecOps practicesFamiliarity with security tools such as Tenable, Fortify, SonarQube, or similarUnderstanding of data security, privacy, and governance in large-scale data environmentsAdditional certifications in cloud security or information assuranceProfessional SkillsStrong analytical and problem-solving skillsAttention to detail with focus on security, compliance, and risk mitigationStrong communication skills across technical and non-technical stakeholdersAbility to manage multiple priorities in a fast-paced environmentAbility to work collaboratively across cross-functional teams#IndeedWorking at ICFICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.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. To request an accommodation, please email Candidateaccommodation@icf.com and we will be happy to assist. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. Read more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) Coverage Act.Candidate AI Usage PolicyAt ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process. However, we understand that some candidates may require accommodation that involves the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at candidateaccommodation@icf.com. We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed.  Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.The pay range for this position based on full-time employment is:$98,187.00 - $166,919.00Reston, VA (VA30)