Helen Guo is a Network Systems Engineer Technical Leader at Cisco IT Data Center, where they have been an IT Senior Network Design Engineer since 2006. They hold triple CCIE certifications in Security, Routing & Switching, and Service Provider. Previously, they worked as a System Engineer at Nortel Networks and served as a Customer Support Engineer at Cisco Systems. Their career began as a Network Engineer at Secom plc, where they provided both pre-sales and post-sales support. Helen earned a Bachelor's degree in Radio Information Technology from Wuhan University in 1991.
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