Senior Network Engineer - Office Connect - GCS

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Job Title: Senior Network Engineer (Office Connect) - GCS       Job Summary:   The Senior Network Engineer (Office Connect) within Global Connectivity Solutions (GCS) is responsible for executing vulnerability remediation, lifecycle management, production upgrades, and technical governance activities across campus network technologies. The role provides technical leadership for Cisco Catalyst and Meraki switching and wireless environments, ensuring infrastructure remains secure, current, resilient, and aligned with approved engineering standards.   The position plans and leads remediation waves, firmware upgrades, production changes, complex troubleshooting, and service restoration activities. It works closely with Network Engineering, Network Operations, Information Security, Change Management, Outage Management, OSTS, Workplace Technology, Product Owners, vendors, and other stakeholders to deliver upgrades safely and minimize business disruption.     Job Description

Drive vulnerability remediation activities across Cisco Catalyst switching, Cisco wireless infrastructure, Meraki switching, Meraki wireless, and associated campus network platforms. Perform and lead software and firmware upgrades for Cisco Catalyst 9000 Series switches, Cisco Catalyst 9800 Wireless Controllers, Cisco access points, Meraki MS switches, Meraki MR access points, and supporting network infrastructure. Review OEM security advisories, software recommendations, field notices, defects, and end-of-sale/end-of-life announcements, and translate applicable findings into remediation and lifecycle activities. Manage software lifecycle and platform currency for Cisco Catalyst, Cisco wireless, and Meraki campus technologies in accordance with approved standards and compliance timelines. Plan and execute code upgrades, firmware updates, platform refreshes, configuration remediation, and technology migration activities across global office environments. Perform pre-upgrade assessments, compatibility checks, configuration reviews, image validation, risk analysis, and post-upgrade health checks. Prepare implementation plans, rollback procedures, validation plans, technical assessments, stakeholder communications, and deployment documentation. Create and maintain Change Requests, Change Tasks, implementation records, approvals, test evidence, and closure documentation in accordance with established processes. Present technical changes during Change Advisory Board reviews and address questions related to impact, risk, dependencies, validation, recovery, and stakeholder readiness. Coordinate testing, outage planning, deployment execution, stabilization, and post-implementation validation with globally distributed technical and business teams. Perform advanced troubleshooting of campus LAN, Cisco Catalyst switching, Cisco wireless, Meraki switching, and Meraki wireless environments. Troubleshoot Layer 2 and Layer 3 issues involving VLANs, trunking, STP/RSTP/MST, EtherChannel, first-hop redundancy, routing, access control, segmentation, and policy enforcement. Diagnose and resolve wireless issues involving client connectivity, AIRRM, RF Planning, 802.1X authentication, roaming, RF performance, channel utilization, interference, coverage, capacity, radio optimization, and client experience. Apply working knowledge of enterprise Wi-Fi standards including 802.11ac, 802.11ax (Wi-Fi 6), and Wi-Fi 6E during upgrade planning, compatibility assessment, validation, and troubleshooting. Use Cisco Catalyst Center Assurance, Software Image Management, Meraki Dashboard,