This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Network Engineer based in the United States. This role is an opportunity to take ownership of highly available, secure, and resilient network infrastructure supporting government and commercial environments. You will operate as a senior technical individual contributor across enterprise, service-provider, colocation, and cloud networks. The position combines deep routing and switching expertise with network security, automation, observability, and incident response. You will work on complex infrastructure challenges involving BGP, IPv4/IPv6, carrier relationships, hybrid connectivity, and network modernization. You will also help strengthen operational practices through automation, documentation, monitoring, and capacity planning. Success in this role requires strong technical judgment, independence, and the ability to communicate effectively with both customers and engineering teams.