Position Summary: The selected candidate will serve in a Senior ISSO role and perform tasks related to Assessment & Authorization (A&A) and cybersecurity under DHA to obtain and maintain Authorizations to Operate (ATOs) for assigned DoD medical systems (i.e., applications, networks, devices). This includes process support, analysis support, coordination support, security certification test support, security documentation support, investigations, software research, hardware introduction and release, emerging technology research inspections and periodic audits.