Ability to: Perform basic to moderately difficult systems administration functions in a multi-segment, multi-platform and multi-operating system and network environment accurately and efficiently; Establish priorities and balance responsibilities for multiple activities to ensure timely, high-quality results; Troubleshoot and resolve hardware, software and connectivity problems; Communicate clearly and effectively, both orally and in writing; Prepare clear, concise and accurate reports, documentation and other written materials; Exercise sound judgment within general policy guidelines; Keep technical skills current to meet continuing work responsibilities; Establish and maintain highly effective, customer-focused working relationships with managers, customers, consultants, vendors, employees and others encountered in the course of work. Knowledge of: Operating system architectures, characteristics, components and commands applicable to multiple platform operating systems; Network architectures and theory and principles of network design and integration, including topologies and protocols; Principles, practices and methods of systems/ network administration and maintenance, including configuration, performance tuning and diagnostic tools; Principles and practices of disaster recovery; Tools and utilities used in monitoring and tuning systems, database and application performance; Basic principles and practices of cyber-security applicable to areas of assigned responsibility; Web technologies and design and administration concepts; Systems integration design concepts and practices; Customer relationship management concepts and practices.