Technical Architect

<p><strong>ABOUT NEXGEN CLOUD</strong></p> <p>NexGen Cloud is a fast-growing GPU cloud and AI infrastructure business. We’re the company behind Hyperstack — a self-serve, on-demand cloud platform built for high-performance AI, HPC, and compute-heavy workloads. Powered by 100% renewable energy and NVIDIA architecture, Hyperstack gives teams from AI startups to enterprise the compute they need, without the cost or complexity of legacy cloud.</p> <p>We move fast, solve hard problems, and build things that matter. If you want ownership, real impact, and a front-row seat to one of the most consequential infrastructure shifts of the decade — this is the place.</p> <p><strong>THE ROLE: Technical Architect</strong></p> <p>We’re deploying large-scale NVIDIA GPU clusters, including GB200 and GB300 rack-scale systems, into live data centres on tight customer commit dates. On those schedules, a design error found on site costs weeks and real money. We need one architect per deployment who takes the high-level design and turns it into something that can actually be built, then stays with it until the customer signs off.</p> <p>This is a role for someone who would rather find the problem on paper than on the data hall floor. It suits someone who will push back on an inherited design or a customer requirement that won’t perform, and who carries authority through owning the design rather than managing people.</p> <p><strong>WHAT YOU’LL BE DOING</strong></p> <p>Rather than a checklist, here’s what success in this role actually looks like:</p> <ul> <li>Take each cluster from CTO handover to customer acceptance as its single design authority, so nothing is ordered or installed against a design you haven’t validated</li> <li>Turn high-level designs and initial BOMs into build-ready low-level designs, hall layouts, rack elevations, P2P maps and cable schedules that site teams can build from without having to call you</li> <li>Design the InfiniBand and Ethernet fabric, power, direct liquid cooling and containment to fit the real constraints of each data centre</li> <li>Validate every BOM before it goes to procurement, and make part substitution calls knowing exactly what breaks when a line changes</li> <li>Hold OEMs and integrators (NVIDIA, Dell, Lenovo, Supermicro and others) to their technical commitments, from FAT witness through to on-site issue resolution</li> <li>Build the reference designs and building blocks that mean each new deployment starts from a known-good baseline rather than a blank page</li> </ul> <p><strong>ABOUT YOU</strong></p> <p>We care more about how you think and work than a perfect CV. You’ll likely bring a combination of the following:</p> <p><em>Essential:</em></p> <ul> <li>You’ve designed and delivered large-scale GPU or HPC clusters into live data centres, and you were on site for the build</li> <li>Deep, practical knowledge of NVIDIA platforms (GB200/GB300 rack-scale and HGX H200/B200) and what each one demands of a facility</li> <li>Cluster-scale InfiniBand and Ethernet fabric design: topology, rail optimisation, oversubscription, and cable and optic selection</li> <li>Physical infrastructure design across power and redundancy, direct liquid cooling and CDUs, containment and a