• Operate, maintain, and troubleshoot the existing Juniper MPLS network, including routing, switching, and WAN connectivity across distributed sites
• Support planning and execution of the migration from MPLS/legacy WAN architecture to a zero-trust cloud-based network solution (e.g., Zscaler Internet Access/Private Access)
• Develop and maintain migration runbooks, site cutover plans, and rollback procedures
• Support coordination, migration schedules, and cutover windows with client stakeholders, application owners, and internal engineering teams
• Validate network performance, security policy enforcement, and application accessibility pre- and post-migration
• Serve as a technical point of contact during cutover events, communicating status, risks, and issues clearly and in real time
• Document network architecture changes, configuration standards, and lessons learned throughout the migration
• Troubleshoot hybrid-state issues that arise from environments running both legacy and modernized network paths concurrently
• Support post-migration decommissioning of legacy MPLS circuits and infrastructure