PRINCIPAL DATA CENTER NETWORK ENGINEER Location: Hybrid | Bellevue, WA Area BUILD THE NETWORK FOUNDATION FOR NEXT-GENERATION AI INFRASTRUCTURE ABOUT THE OPPORTUNITY A well-funded, rapidly growing AI infrastructure company is building a next-generation cloud platform designed to power the full lifecycle of artificial intelligence. The organization is developing a comprehensive AI infrastructure, platform, and services portfolio that supports the full spectrum of AI workloads, including large-scale compute, model training, fine-tuning, inference, and emerging agentic AI applications. Backed by significant long-term investment, the company combines the speed, ownership, and innovation of a startup with the stability and resources of an established parent organization. Engineering teams are intentionally lean, highly collaborative, and AI-native, leveraging modern automation and tooling to build world-class infrastructure capable of supporting the industry's most demanding AI workloads. We're seeking a Principal Data Center Network Engineer to architect and build the networking foundation for a multi-tenant AI cloud platform. This is a greenfield opportunity to define the network architecture supporting GPU clusters, tenant isolation, security, and high-performance connectivity across next-generation AI infrastructure. THE OPPORTUNITY As one of the earliest networking engineers on the infrastructure team, you'll own the design, automation, and evolution of the data center network that powers a rapidly expanding AI platform. You'll work across a multi-vendor networking environment, partnering closely with infrastructure, hardware, platform, and cloud engineering teams to deliver secure, resilient, and high-performance networking at scale. This is a highly visible Principal-level individual contributor role offering significant technical ownership and influence over the long-term networking strategy of the organization. WHAT YOU'LL DO * Design, build, automate, and operate data center networking supporting large-scale GPU clusters, AI workloads, and multi-tenant cloud services. * Develop secure tenant isolation architectures that ensure performance, scalability, and security across customer environments. * Design resilient, highly available network architectures across compute, storage, and infrastructure services. * Work across multiple networking platforms and vendors, including technologies from Arista, Juniper, HPE, and other enterprise networking providers. * Partner closely with hardware, infrastructure, virtualization, and platform engineering teams to optimize networking for AI training and inference workloads. * Build infrastructure automation to simplify deployment, configuration management, monitoring, and operational excellence. * Define networking standards, architecture documentation, and engineering best practices as the infrastructure organization grows. * Evaluate emerging networking technologies and help shape the long-term evolution of the company's AI networking platform. WHAT WE'RE LOOKING FOR * Significant experience designing, deploying, and operating large-scale data center networks within hyperscale cloud, AI infrastructure, HPC, or enterprise environments. * Deep expertise across multiple enterprise networking platforms, with demonstrated experience supporting at least two major vendors such as Arista, Juniper, HPE, Cisco, or equivalent technologies. * Strong understanding of multi-tenant networking, segmentation, tenant isolation, and network security architecture. * Experience designing highly available, scalable, and automated networking solutions supporting mission-critical production environments. * Strong automation mindset with experience implementing Infrastructure as Code, network automation, or programmable networking. * Ability to operate independently in a fast-paced, early-stage environment where architecture, standards, and processes are being built from the ground up. PREFERRED QUALIFICATIONS * Experience supporting GPU clusters, AI infrastructure, high-performance computing (HPC), or large-scale distributed compute environments. * Experience with high-bandwidth, low-latency networking technologies such as InfiniBand, RoCE, RDMA, or equivalent fabrics supporting AI workloads. * Experience building networking platforms for hyperscale cloud providers, AI infrastructure companies, or cloud-native platforms. * Familiarity with EVPN/VXLAN, Spine-Leaf architectures, BGP, Clos networking, and modern software-defined networking principles. * Experience with network observability, telemetry, and automation frameworks. COMPENSATION * Competitive base pay for Bellevue market * Certain roles are eligible for additional rewards, including merit increases, annual bonus, and long term incentives. These awards are allocated based on individual performance * U.S. based employees have access to medical, dental, and vision insurance, a 401(k) plan and company match, employees also receive per calendar year, paid holidays. LOCATION * Hybrid role based in the Bellevue, WA area. * Approximately three days per week in the office. * Candidates elsewhere in the U.S. who are open to relocation are encouraged to apply. * U.S. work authorization is required. Visa sponsorship is not currently available. WHY JOIN? * Design and build the networking foundation powering one of the industry's most advanced AI infrastructure platforms. * Own architecture decisions spanning data center networking, tenant isolation, security, and high-performance connectivity. * Work across cutting-edge GPU infrastructure supporting AI training, inference, and next-generation cloud services. * Join early enough to establish networking standards, automation, and long-term architectural direction. * Collaborate with exceptional engineers solving some of the industry's most complex challenges in hyperscale networking and AI infrastructure. * Enjoy the autonomy and technical ownership of a startup environment backed by substantial long-term investment and a bold vision for the future of AI.

Principal Staff Data Center Network Engineer

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