Who are we?Equinix is the world's digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.A place where bold ideas are welcomed, human connection is valued, and everyone has the opportunity to shape their future.A career at Equinix means being at the center of shaping what comes next and amplifying customer value through innovation and impact. You'll work across teams, influence key decisions, and help shape the path forward. You'll find belonging, purpose, and a team that welcomes you-because when you feel valued, you're empowered to do your best work.Job Summary The Lead Sales Engineer - Microsoft is the technical execution leader for one of Equinix's most strategic and globally significant hyperscaler accounts. Under the direction of Solutions Engineering leadership, this role owns the end-to-end design and pursuit execution of advanced data center, interconnection, and hybrid infrastructure solutions across the breadth of Microsoft's product and services portfolio deployed on Platform Equinix - translating global account strategy into deployable architectures across regions. Working in close partnership with the Microsoft Account Executive and the Solutions Architect, the Lead SE serves as the subject matter expert for data center design, emerging infrastructure technologies, high-density compute, and custom build-to-suit solutions, ensuring technical excellence and commercial viability in every engagement.This is a high-visibility role both within and outside of the company. The successful candidate brings a rare combination of deep data center and infrastructure expertise, advanced client engagement skills, and the technical authority to lead through complex, multi-region hyperscaler pursuits. The ideal candidate is equally adept at business-outcome conversations with C-level executives and deeply technical discussions on complex data center, AI, and interconnection solutions.Responsi