Manages and coordinates the administrative activities and operational support for a large, complex UNIX based system and all its components. Responsible for coordination of hardware and software installation and upgrades. Monitors system performance and capacity. Troubleshoots hardware and software problems, takes appropriate corrective action and or interacts with DP staff or vendors in performing complex testing, support and troubleshooting functions. Responsible for site setup, user training, hardware software installation, maintenance and support and documentation of hardware software logs and operating procedures. Coordinates basic user administration adds, changes, deletes, disk space management, backups, and file restores. Documents standards and operating procedures for the UNIX based system and acts as a technical resource to the DP staff and systems users. Performs related duties as assigned or requested. Leads others to solve complex problems takes a broad perspective to identify innovative solutions. Works independently, with guidance in only the most complex situations. May lead teams or projects.