Senior HPC GPU Cluster Architect - End-to-End Design Lead

NexGen Cloud; United Kingdom; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Competitive salary

25 days holiday

Remote or hybrid

Ownership & autonomy

Career growth

Job summary

NexGen Cloud is seeking a senior HPC architect to own the full architecture cycle for large GPU deployments, from first customer conversation to production handover. You’ll translate requirements into production-ready designs across compute, networking, storage, power and cooling.

You’ll act as a technical authority, owning end-to-end designs, guiding vendors, validating configurations, and supporting deployment and performance testing.

Qualifications

• Proven experience in HPC or AI software stack design and delivery at scale.
• Deep understanding of GPU software environments: CUDA, cuDNN, NCCL, driver stacks.

Responsibilities

• Own end-to-end cluster architecture for large NVIDIA GPU deployments—from customer requirements through rack layouts, BOM, power & cooling design, to production handover.
• Design high-performance network fabrics across compute, storage, and WAN—defining topology, oversubscription models, and scaling strategies.
• Engage directly with OEMs and vendors—validating hardware configurations, reviewing quotes, and ensuring designs are technically sound and commercially optimised.
• Provide technical oversight during deployment and bring‑up—supporting hardware validation, performance testing, and acting as escalation point for complex integration issues.
• Act as a senior technical leader across Solutions Architecture, Cloud Engineering, and data centre partners—contributing to standardised reference designs and building out the HPC engineering function.

Skills

HPC Experience

GPU software stacks

Performance tuning

Containerisation & orchestration

OEM/vendor engagement

Documentation & diagrams

Customer-facing technical authority

Tools

SLURM

PBS

NVIDIA GPU Operator

Docker

Kubernetes

Job description

NexGen Cloud is seeking a senior HPC architect to own the full architecture cycle for large GPU deployments, from first customer conversation to production handover. You’ll translate requirements into production-ready designs across compute, networking, storage, power and cooling.

You’ll act as a technical authority, owning end-to-end designs, guiding vendors, validating configurations, and supporting deployment and performance testing.