Sr Network Architect (network + cloud+ security)

About Gartner IT: Join a world-class team of skilled engineers who build creative digital solutions to support our colleagues and clients. We make a broad organizational impact by delivering cutting-edge technology solutions that power Gartner. Gartner IT values its culture of nonstop innovation, an outcome-driven approach to success, and the notion that great ideas can come from anyone on the team. About this role: Senior Network Architect is a senior technical leader responsible for the strategic vision, lifecycle planning, and architectural design of highly reliable, secure, and scalable multi-cloud and enterprise network infrastructure to support Gartner Conference and global business operations. The ideal candidate brings expert-level mastery in enterprise network design, zero-trust security frameworks, edge connectivity, and hybrid cloud ecosystems. They are passionate about setting architectural guardrails, authoring long-term technology roadmaps, and leveraging modern software-defined networking (SDN) and automation frameworks to drive transformative business outcomes. What you’ll do: Define Strategy: Architect the global enterprise network blueprint spanning LAN, WAN, SD-WAN, multi-cloud ecosystems, and high-density event environments. Lead Security Architecture: Design enterprise-wide network security frameworks, integrating next-generation firewalls, SASE, zero-trust models, and micro-segmentation. Author Roadmaps: Establish long-term technology roadmaps, standard reference designs, and architectural guardrails Campus office, Data Center, and cloud connectivity. Drive Innovation: Evaluate and select emerging technologies, leading proof-of-concepts for SDN, intent-based networking, network automation, and AI frameworks. Cross-Functional Collaboration: Partner with infrastructure team, application team, Infosec team, DevOps Team, Cloud CCOE team and End user team. Govern Documentation: Own the lifecycle of core reference architectures, global topology diagrams, infrastructure-as-code libraries, and standard compliance guidelines. Act as Highest Escalation: Serve as the ultimate technical authority for systemic, complex infrastructure or application performance anomalies. Mentor Teams: Provide technical governance and mentorship to senior network engineering teams, cultivating engineering excellence across the organization. What you’ll need: Professional Experience: 12-17 years of deep technical experience in large-scale enterprise routing, switching, and complex network infrastructure design.. Technical Governance: Ability to author and maintain global network architectural standards, high-level designs (HLD), low-level designs (LLD), and deployment blueprints. Core Routing & Switching: Master-level understanding of advanced routing protocols (BGP, OSPF) alongside high-density data center fabrics (spine-leaf) and modern campus network topologies. Enterprise Wireless: Deep technical knowledge of enterprise wireless…