Information System Security Officer ISSO

Computer Security, United States Citizen, Secret Clearance, CompTIA Security+, DoD Directive 8140, IAT - Information Assurance Technical, DoD Directive 8570, On Site Support, Internet Security, Information Technology & Information Systems, * U.S. Citizen.

• Ability to obtain Secret clearance (active preferred)
• Active DoD 8140 IAT Level II Security+ (or higher).
• Ability to work up to 3 days a week in a hybrid capacity out of Fairfax, VA. Additional onsite support may be required based on operational or mission needs.
• Minimum 5 years of relevant cybersecurity experience, including experience supporting DoW information systems, RMF, security authorization, or continuous monitoring activities.
• Hands-on experience with DoD RMF, NIST SP 800-53, eMASS, authorization packages, control implementation documentation, POA&Ms, and continuous monitoring activities.
• Working knowledge of AWS security and compliance concepts, including cloud shared responsibility, inherited controls, identity and access management, logging, network security, and security control implementation within cloud environments.
• Practical understanding of secured IT infrastructure, including AWS, Kubernetes, Linux, Windows, Entra ID/Active Directory, networking, authentication, endpoint security, logging, and monitoring, with the ability to evaluate how these technologies affect the system’s security and authorization posture.
• Ability to develop and maintain cybersecurity documentation including System Security Plans, control implementation statements, POA&Ms, risk documentation, policies, procedures, SOPs, and continuous monitoring artifacts.
• Hands-on experience with ACAS/Nessus, including credentialed scanning, vulnerability analysis, scan configuration, troubleshooting scan coverage or authentication issues, and targeted vulnerability assessments.
• Ability to analyze DTOs, CVEs, cybersecurity directives, and vulnerability notifications and independently determine potential system exposure using ACAS/Nessus and other available technical information.
• Experience reviewing and validating DISA STIGs, security configuration evidence, remediation documentation, mitigations, and vulnerability closure evidence.
• Ability to work directly with cloud, system, network, and application engineers to validate technical security controls, investigate findings, determine remediation approaches, and collect sufficient evidence to support RMF requirements.
• Ability to translate technical vulnerabilities and control deficiencies into clear mission and cybersecurity risk statements for ISSMs, system owners, government stakeholders, and Authorizing Officials.
• Strong analytical, problem solving, technical writing, and verbal communication skills, with the ability to independently investigate cybersecurity issues and communicate effectively with both technical and non-technical stakeholders.
• Strong problem-solving and decision-making capabilities, with a proven ability to weigh the relative costs and benefits of potential actions and identify the most appropriate solution.
• Highly developed interpersonal and oral/written communication skills, with the ability to effectively and professionally interact with a diverse set of stakeholders (from peers to end-users to executive management).
• Active Secret clearance.
• Experience supporting a system through an initial IATT and/or ATO, including development of authorization artifacts from the ground up.
• Familiarity with Kubernetes security and compliance, including containerized workloads, cluster security, logging, and vulnerability management.
• Experience with security and monitoring technologies such as Trellix, Elastic, Grafana, Loki, AWS-native security services, or similar tools.
• Prior experience supporting DISA programs and working directly with government cybersecurity stakeholders, assessors, or Authorizing Officials.
• Strong technical writing skills, including development of control implementation statements, risk and mitigation narratives, POA&M closure justifications, policies, procedures, and ATO documentation.

Everforth ECS is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We value:

• Attracting and developing top talent and high-performing teams
• Fostering a culture that is engaging, accountable, and mission-driven

Meet the challenge. Make a difference with Everforth ECS!