Provide high level, Tier III technical systems administrative support for the NCCS OE, associated systems, and custom interfaces and applications supporting JSSC operations including tasks related to database administration, data management, network infrastructure management, and software management in production and testing environments, and with minimal direction, independently analyze and resolve exceptionally complex issues, applying extensive technical expertise to develop innovative solutions that meet customer needs. Complete essential system and database administration functions working with a matrixed team of technicians to include both government and contractor, set up and maintain multiple and different versions of UNIX operating systems, supporting tools, middleware, and privilege sets, attend and actively participate in change and configuration control functions, and implement Security Technical Implementation Guides (STIG) in direct support of Information Assurance Vulnerability Management (IAVM).