Owns solution architecture for complex secure networking opportunities in a senior presales capacity. Leads customer discovery, high-level design, proposals, pricing support, vendor strategy, and services integration across enterprise, data center, WAN, campus, cloud, and security environments. Presents to stakeholders, aligns technical solutions with business and commercial outcomes, supports pipeline growth, and transitions designs to delivery teams. Requires extensive networking architecture experience, strong customer engagement skills, multi-vendor expertise, and familiarity with automation, cloud networking, observability, and Zero Trust.