GPU Cloud Infra Architect | Data Center Deployments

Nexgencloud; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Discretionary bonus

Private medical insurance

Enhanced pension

25 days holiday

Flexible working (remote/hybrid)

Employee wellbeing program

Career progression

Collaborative culture

Job summary

NexGen Cloud in London is seeking a Technical Architect to lead the design and deployment of large-scale NVIDIA GPU clusters in live data centres. You’ll translate high-level concepts into build-ready details and own the design through customer sign-off.

This role is for someone who pushes back on inherited designs, validates BOMs, and coordinates with OEMs and integrators to meet tight schedules. You’ll build reference designs that start each deployment from a proven baseline while enabling

Qualifications

• Designed and delivered large-scale GPU or HPC clusters into live data centres.
• Deep knowledge of NVIDIA platforms (GB200/GB300 rack-scale and HGX H200/B200).
• Cluster-scale InfiniBand and Ethernet fabric design: topology, rail optimisation, oversubscription.

Responsibilities

• Take each cluster from CTO handover to customer acceptance as its single design authority.
• Turn high-level designs and initial BOMs into build-ready low-level designs, hall layouts, rack elevations, P2P maps and cable schedules.
• Design the InfiniBand and Ethernet fabric, power, direct liquid cooling and containment to fit the real constraints of each data centre.
• Validate every BOM before procurement and manage part substitutions with impact awareness.
• Hold OEMs and integrators to their commitments from FAT witness to on-site issue resolution.
• Build reference designs and building blocks to start deployments from a known-good baseline.

Skills

GPU HPC design

NVIDIA platforms

InfiniBand fabric design

Power & cooling design

OEM accountability

Job description

NexGen Cloud in London is seeking a Technical Architect to lead the design and deployment of large-scale NVIDIA GPU clusters in live data centres. You’ll translate high-level concepts into build-ready details and own the design through customer sign-off.

This role is for someone who pushes back on inherited designs, validates BOMs, and coordinates with OEMs and integrators to meet tight schedules. You’ll build reference designs that start each deployment from a proven baseline while enabling