Job: 3035443 Job Description: Senior Information System Security Officer Location: Washington, DC (On-site) Role Overview: We are seeking a Senior Information System Security Officer (ISSO) to support federal systems throughout the Risk Management Framework (RMF) lifecycle. This role involves leading systems' Authority to Operate (ATO) efforts and maintaining a security posture in compliance with federal standards. The ideal candidate will have extensive hands-on and leadership experience in in…