Sr. Information Systems Security Officer II

Sr. Information Systems Security Officer II

Invictus Strategy & Solutions is a Service-Disabled Veteran-Owned Small Business (SDVOSB) providing strategic workforce solutions to mission-critical government and commercial operations. From cleared federal programs to complex industrial projects, we deliver top-tier professionals who drive performance, safety, and results. Our commitment to operational excellence and customer alignment makes us the partner of choice for organizations seeking agile and reliable talent solutions.

Invictus is seeking a Senior Information Systems Security Officer II to support Government System Authority to Operate initiatives in the Tysons, Virginia area. This role requires an active TS/SCI with CI Polygraph and direct experience supporting ATO efforts in classified cloud environments.

This is a hands‑on security role focused on implementing, validating, and sustaining compliance aligned to NIST, RMF, ICD 503, and federal cybersecurity standards. The selected candidate will guide systems through IL5 and IL6 ATO processes, maintain continuous monitoring posture, and work directly with government stakeholders to ensure mission systems meet stringent security requirements.

This position is on site in the Tysons, Virginia area and requires an active TS/SCI with CI Polygraph.

• Support government clients in achieving and maintaining Authority to Operate status
• Conduct security assessments and risk analyses aligned to NIST SP 800-53, RMF, ICD 503, FISMA, and FedRAMP
• Monitor security systems, logs, and network traffic within IL5 and IL6 environments
• Identify vulnerabilities and coordinate remediation efforts
• Develop and maintain incident response plans and security documentation
• Support vulnerability scanning and continuous monitoring activities
• Collaborate with cross functional teams to implement secure architectures and controls
• Ensure compliance with government cybersecurity policies and reporting requirements

• Active TS/SCI clearance with CI Polygraph
• CISSP or equivalent certification supporting DoD 8140 requirements
• Minimum 4 years of experience supporting Government System ATO efforts
• Demonstrated experience achieving and maintaining ATO for IL5 and IL6 cloud systems
• Strong experience with NIST SP 800-53, RMF, ICD 503, FISMA, FedRAMP
• Experience with vulnerability scanning tools and intrusion detection systems
• Strong incident response and forensic analysis capabilities
• Strong documentation discipline and ability to articulate technical risks clearly

• Experience supporting ATO across NIPR, SIPR, and JWICS environments
• Experience working within highly compartmented mission environments
• Experience supporting classified cloud architectures

Invictus Strategy & Solutions is unable to provide sponsorship at this time. All applicants must be legally authorized to work in the United States without current or future sponsorship requirements.

Invictus Strategy & Solutions is an equal opportunity employer. All qualified applicants will receive consideration without regard to any protected characteristic.

The pay range for this role is:

150, USD per year (Tysons, VA)