Vice President of Infrastructure

You will be the most senior technology leader at 1Legion, reporting directly to the CEO, with end-to-end ownership of how we design, build and operate GPU infrastructure across five countries. You will turn signed contracts into delivered, SLA-backed capacity on time and on budget, and you will be the person our customers, lenders and investors look to when they ask whether the platform is engineered by someone who has done this before.

What you will do

• Own the reference architecture for every deployment: rack, pod and cluster design for NVIDIA HGX B300 and rack-scale NVL72-class systems, including liquid cooling at 100 kW and above per rack
• Lead delivery of new capacity from site to acceptance: cluster build, fabric, storage, provisioning, burn-in and customer sign-off against defined benchmarks
• Run the bare metal platform: provisioning and re-imaging, tenant isolation without a hypervisor, InfiniBand and Ethernet fabrics, parallel storage, observability and SLA reporting
• Own 24/7 operations across all sites, including facilities, NOC and incident management
• Act as design authority on our data centre builds and conversions, from M&E design through commissioning and handover
• Represent the platform in technical diligence with customers, lenders and investors
• Hire and lead engineering and site operations teams in each country we operate in

What we are looking for

• 10+ years in infrastructure engineering, with at least 3 years in senior leadership at a GPU cloud, a hyperscaler GPU business, or a data centre operator hosting GPU workloads
• You have built or converted at least one data centre and operated live facilities with paying tenants, not only deployed servers into someone else's building
• You have delivered multi-thousand-GPU clusters into production for external customers
• Deep bare metal fundamentals: HGX and NVL systems, BMC and firmware lifecycle at fleet scale, InfiniBand and RoCE fabric design, parallel file systems, Kubernetes and Slurm on bare metal
• You have run infrastructure in more than one country and hired across borders
• You are comfortable committing to delivery dates that carry contractual consequences, and building the buffers to hit them

Nice to have

• Liquid-cooled Blackwell deployments specifically
• Experience on the issuer side of a lender or investor technical diligence process