Information System Security Officer (ISSO) ***Top Secret Clearance***

This role is for a highly experienced Information System Security Officer (ISSO) focused on ensuring the security, compliance, and authorization of critical federal agency information systems. You will be the technical and compliance authority responsible for implementing and managing the Risk Management Framework (RMF), maintaining system security documentation, and overseeing continuous monitoring activities across cloud and hybrid environments. The ideal candidate will have 7 or more years of hands-on federal experience, a deep technical mastery of key security frameworks, and a proven ability to manage complex authorization processes. Key Responsibilities: Lead cybersecurity strategy development, integrating enterprise risk management with operational resilience and compliance for high-impact federal systems. Direct all aspects of information assurance, including vulnerability management, POA&M resolution, and incident response for mission-critical environments. Manage large-scale security compliance efforts including system authorizations (ATO), continuous monitoring Categorize information systems and tailor security controls. Develop and maintain security documentation (SSPs, CPs, CM, IR Plans, etc.) Perform risk assessments. Drive adoption and transition to NIST SP 800-53 Rev 5 across enterprise environments, ensuring timely updates and organizational alignment. Work in multidisciplinary cybersecurity teams (SOC analysts, engineers) in daily operations, goal setting, mentoring, and performance optimization. Oversee control inheritance, RMF lifecycle, and TIC 3.0 compliance across shared platforms and Landing Zones. Other duties and responsibilities as assigned by your client task manager and IBSS manager.

Since 1992, IBSS, a woman-owned small business, has provided transformational consulting services to the Federal defense, civilian, and commercial sectors. Our services include cybersecurity and enterprise information technology, environmental science and engineering (including oceans, coasts, climate, and weather), and professional management services. Our approach is to serve our employees by investing in their growth and development. As a result, our employees bring greater capabilities and provide exceptional service to our clients. In addition to creating career development opportunities for our employees, IBSS is passionate about giving back to the community and serving the environment. We strive to leave something better behind for the next generation. We measure our success by the positive impact we have on our employees, clients, partners, and the communities we serve. Our tagline, Powered by Excellence, is a recognition of the employees that make up IBSS and ensures we deliver results with quality, applying industry best practices and certifications.