Principal AI Infrastructure Engineer

About Highrise AI Highrise AI is a GPU-native infrastructure platform built for modern AI workloads. Designed for developers and enterprises operating in performance-critical and security-sensitive environments, Highrise delivers scalable GPU compute across dedicated clusters, managed cloud, and confidential environments. Highrise combines bare-metal performance with full-stack orchestration, API-driven access, and hardware-enforced isolation to support training, fine-tuning, and production-scale deployment of AI models. From reserved GPU capacity to enterprise-grade confidential compute, Highrise provides flexible infrastructure models tailored to the needs of builders operating at scale. Beyond infrastructure, Highrise integrates disciplined operations, advanced automation, and on-site engineering expertise to sustain high uptime and predictable performance across deployments. These capabilities extend beyond Highrise-owned fleets: through managed services, Highrise also operates third-party GPU hardware on behalf of customers and partners, applying the same operational standards to infrastructure it does not own. Highrise is a subsidiary of Hut 8 Corp., an energy infrastructure platform. Hut 8 integrates power, digital infrastructure, and compute at scale. Highrise serves as the compute and operations layer—designing, deploying, and operating next-generation GPU clusters from commissioning through production. ROLE OVERVIEW We are seeking a senior, hands-on AI Cluster Integration Engineer to bring large-scale GPU compute clusters from physical installation to validated, commercially ready production. Working alongside a team of senior infrastructure engineers, this person will own critical elements of cluster bring-up, bare-metal provisioning, advanced systems configuration, performance optimization, and acceptance testing. After deployment, the engineer will provide Tier 3 technical escalation and sustained performance support for operating clusters. The focus is on compute-platform readiness and workload performance rather than primary ownership of network switch and fabric configuration. KEY RESPONSIBILITIES Cluster Bring-Up and Systems Integration • Lead technical bring-up of materially complete, racked, powered, and cabled AI clusters through production readiness and customer handoff. • Establish and validate system baselines across BIOS/BMC, firmware, GPU drivers, operating systems, and cluster software stacks. • Deploy and optimize automated bare-metal provisioning, imaging, node configuration, and lifecycle workflows at scale. • Configure and troubleshoot advanced Linux and GPU systems, including kernel, driver, accelerator, and host-level performance settings. • Integrate and validate Kubernetes and Slurm environments in partnership with platform, networking, and operations engineers. Performance Engineering and Acceptance • Execute NVIDIA Field Diagnostics, L11/L12 validation, burn-in, stability, and hardware health qualification procedures. • Run and analyze NCCL collective communication tests, GPU benchmarks, and distributed workload performance at node, rack, and cluster scale. • Troubleshoot GPU, NVLink/NVSwitch, PCIe, RDMA, and InfiniBand/Ethernet performance issues, partnering with network engineers on fabric-related remediation. • Identify configuration bottlenecks and optimize throughput, latency, scaling efficiency, and cluster reliability. • Own technical acceptance criteria, test evidence, defect tracking, remediation verification, and readiness recommendations for commercial service. Tier 3 Operations and Reliability • Serve as a senior escalation point for complex production incidents involving compute nodes, GPU software, provisioning, scheduling, and degraded performance. • Perform