Strong understanding of the RMF process, NIST SP 800- 37, NIST SP 800-53, CNSSI 1253, as well as key technologies areas/domain such as: Network, Mobility, Windows, UNIX, Cloud Environments and Cloud Native Tools/Services, Host Based Security System (HBSS)/Endpoint Security Solutions (ESS), Databases, Applications. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .