The Work
We are seeking a Senior Cybersecurity Engineer with deep experience supporting the Risk Management Framework (RMF) and Authorization to Operate (ATO) lifecycle for federal information systems. This role focuses on STIG compliance, vulnerability management, POA&M tracking, and incident response for high‑impact systems operating in classified environments.
Key Responsibilities
Provide end-to-end RMF and ATO support, including development, maintenance, and submission of security authorization packages.
Manage and maintain eMASS artifacts, ensuring accuracy, completeness, and audit readiness.
Conduct and oversee STIG compliance activities across operating systems, databases, and platforms; document findings and remediation actions.
Identify, track, and manage Plans of Action and Milestones (POA&Ms), coordinating with technical teams to drive remediation to closure.
Perform and review vulnerability assessments using tools such as Nessus and STIG scanning utilities; analyze results and recommend mitigation strategies.
Support incident response activities, including investigation, reporting, and coordination with security leadership and stakeholders.
Develop and update RMF documentation such as SSPs, SARs, RARs, and continuous monitoring artifacts.
Collaborate with ISSOs, ISSEs, system owners, developers, and program leadership to ensure ongoing compliance with federal and DoD cybersecurity requirements.
Support continuous monitoring activities and ATO renewals in accordance with NIST, DoD, and agency-specific guidance.
Required Qualifications
10+ years of experience supporting RMF / ATO processes for federal information systems.
Bachelor’s degree in Cybersecurity, Information Assurance, Computer Science, or a related field.
Active Top Secret / SCI clearance.
Preferred Qualifications
Preference to candidates who has experience supporting DCSA or a federal agency.
Relevant cybersecurity certifications (e.g., CISSP, CISM, CAP, CEH, or Security+).
Hands-on experience with eMASS, including package creation and ongoing maintenance.
Strong working knowledge of STIG compliance, vulnerability scanning, and remediation processes.
Experience managing and reporting POA&Ms through resolution.
Familiarity with Nessus and other vulnerability assessment and STIG scanning tools.
Experience supporting or participating in incident response efforts within a classified or regulated environment.
Solid understanding of NIST RMF and federal cybersecurity compliance requirements.
Background working in classified cloud or hybrid environments.
Experience with continuous monitoring and ATO sustainment activities.
Familiarity with DISA STIGs, ACAS, or similar DoD-aligned security tools.
Working at ICF
ICF 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.
At 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:
$118,807.00 - $201,971.00DC Remote Office (DC99)