Design, configure and maintain production and corporate networks. Performance and capacity planning: monitor, reconfigure and tune network hardware (Cisco 7600, 7500, 7200, 3600, 2800, 2600 routers and 6500, 3748, 3550, 2900 switches), firewalls (Cisco PIX 535, 515 and Checkpoint Nokia), DNS, and load balancers (F5 BigIP and 3DNS) for performance improvements and future scalability.