Principal Network Architect- AI Infrastructure at Nscale

United States

<p>&nbsp;</p> <p><strong>What We Can Offer You</strong></p> <p>&nbsp;</p> <p>At Nscale, you'll find a <strong>collaborative, supportive, and innovative environment</strong> where your contributions spark real impact. We're building something extraordinary, and we want you at the core.</p> <ul> <li>Highly <strong>competitive package</strong> (base + equity) with <strong>reviews every 12 months</strong>. 🚀</li> <li>Join the <strong>fastest-growing tech startup</strong>, your chance to push boundaries, collaborate with brilliant minds, and make your mark on cutting-edge AI. ✨</li> <li>Expect a <strong>dynamic progression plan</strong> tailored to your ambitions. Grow by trying new things, leading, challenging the status quo, and owning your impact, always with our full support.&nbsp;</li> <li><strong>Human-First Flexibility:</strong> We treat you as <strong>humans first</strong>. 🫶🏽 Our flexible workplace trusts Nscalers to deliver, giving you the autonomy to shape your day around life's moments.</li> </ul> <p><strong>About Nscale</strong></p> <p>Nscale is the GPU cloud engineered for AI. We provide cost-effective, high-performance infrastructure for AI start-ups and large enterprise customers.&nbsp; Nscale enables AI-focused companies to achieve superior results by reducing the complexity of AI development. Our GPU cloud bolsters technical capabilities and directly supports strategic business outcomes, including cost management, rapid innovation, and environmental responsibility.</p> <p>We thrive on a culture of relentless innovation, ownership, and accountability, where every team member takes pride in their work and drives it with excellence and urgency. As an Nscaler, you’ll build trust through openness and transparency, where everyone is inspired to do their best work. If you join our team, you’ll be contributing to building the technology that powers the future.</p> <p>&nbsp;</p> <p><strong>Role Overview</strong></p> <p>Nscale is seeking a Network Architect Engineer to lead the evolution, reliability, and operational excellence of our global AI networking infrastructure. This role sits at the core of Nscale’s platform, where network performance directly impacts AI training outcomes. You will act as a technical authority across large-scale RDMA / Infiniband / RoCE fabrics, driving automation, availability improvements, and system-level design across a globally distributed GPU cloud. You will combine deep network protocol-level networking expertise with strong software and automation skills to operate and scale one of the most demanding AI networking environments in the industry.</p> <p>&nbsp;</p> <p><strong>What You’ll Do</strong></p> <p><strong>Technical Leadership &amp; Strategy</strong></p> <ul> <li>Own the <strong>technical direction and operational lifecycle management</strong> of Nscale’s high-performance RDMA network fabrics</li> <li>Define <strong>long-term architecture, reliability strategy, and operational standards</strong> for AI interconnect networks</li> <li>Lead <strong>availability and performance improvement initiatives</strong> across globally distributed GPU clusters</li> <li>Act as a <strong>technical authority (SME)</strong> across networking, influencing platform-wide decisions</li> </ul> <p><strong>Network Engineering &amp; Operations</strong></p> <ul> <li>Support design, build, and evolve <strong>large-scale Infiniband and RoCE fabrics</strong></li> <li>Drive <strong>deep debugging and resolution of complex cross-layer issues</strong> (hardware, firmware, kernel, distributed workloads)</li> <li>Lead <strong>incident response and postmortems</strong>, ensuring systemic fixes and long-term improvements</li> <li>Define and enforce standards across:</li> <li>Congestion control and traffic engineering</li> <li>Routing (BGP, ECMP, fabric-level routing strategies)</li> <li>Firmware lifecycle and change management</li> <li>Network observability and telemetry</li> </ul> <p><strong>Automation &amp; Systems Development</strong></p> <ul> <li>Develop and scale <strong>automation frameworks</strong> for network provisioning, validation, and operations</li> <li>Build tooling to support <strong>high-reliability, low-touch network operations at scale</strong></li> <li>Improve operational efficiency across <strong>hundreds of thousands of endpoints and high-throughput links</strong></li> </ul> <p>&nbsp;</p> <p><strong>Cross-Functional Leadership</strong></p> <ul> <li>Lead complex technical initiatives across <strong>Network, SRE, Compute, and Platform teams</strong></li> <li>Serve as <strong>technical lead on critical programs</strong>, coordinating engineers and stakeholders</li> <li>Influence <strong>product and infrastructure roadmaps</strong> based on operational insights and customer needs</li> <li>Mentor senior engineers and raise the bar for <strong>technical rigor and execution</strong></li> </ul> <p>&nbsp;</p> <p><strong>What We’re Looking For</strong></p> <p><strong>Core Experience</strong></p> <ul> <li>10+ years of experience in <strong>network engineering</strong> in hyperscale, AI, or HPC environments</li> <li>Deep expertise in <strong>RDMA, Infiniband, and/or large-scale RoCE fabrics</strong></li> <li>Strong understanding of:</li> <li>RDMA internals and performance tuning</li> <li>Congestion control and fabric failure modes</li> <li>Distributed system communication patterns</li> </ul> <p><strong>Technical Skills</strong></p> <ul> <li>Expert-level knowledge of <strong>data center networking protocols</strong> (BGP, OSPF, ECMP)</li> <li>Proven ability to debug <strong>multi-layer issues across network, system, and application layers</strong></li> <li>Strong programming/scripting skills for <strong>automation (Python, Go, etc.)</strong></li> <li>Experience designing <strong>high-scale, highly available network systems</strong></li> </ul> <p><strong>Leadership &amp; Impact</strong></p> <ul> <li>Demonstrated ability to <strong>lead complex technical programs</strong> without direct authority</li> <li>Experience acting as a <strong>senior escalation point</strong> for critical production issues</li> <li>Strong ability to <strong>drive cross-team alignment and execution</strong></li> <li>Systems-level thinking balancing <strong>performance, reliability, scalability, and cost</strong></li> </ul> <p><strong>Nice to Have</strong></p> <ul> <li>Experience with <strong>NVIDIA / Mellanox networking platforms</strong></li> <li>Familiarity with <strong>distributed AI training frameworks</strong> and GPU communication patterns</li> <li>Experience building <strong>network observability systems at scale</strong></li> <li>Background influencing <strong>infrastructure strategy in high-growth environments</strong></li> </ul> <p>&nbsp;</p> <p><strong>Equal Opportunities Statement</strong></p> <p>We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds.</p> <p>If there’s anything we can do to accommodate your specific situation, please let us know.</p> <p>The responsibilities outlined in this job description are not exhaustive and are intended to provide a general overview of the position. The employee may be required to perform additional duties, tasks, and responsibilities as assigned by management, consistent with the skills and qualifications required for the role.</p> <p><br><br></p><div class="content-conclusion"><p><em>For information on how Nscale handles candidate personal data, please see our Employee &amp; Candidate Privacy Notice:&nbsp;<a href="https://drive.google.com/file/d/1QK5Yg04WHD9K9IAtJgQWubJZC9oLvatK/view?usp=sharing" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://drive.google.com/file/d/1QK5Yg04WHD9K9IAtJgQWubJZC9oLvatK/view?usp%3Dsharing&amp;source=gmail&amp;ust=1765375172804000&amp;usg=AOvVaw2Ncte4rmlGl8OKuFuDgDtx">Here.</a></em></p></div>