Solutions Architect

Talent Solutions Delivery Lead at WNTD | Data Centre & AI Technology Infrastructure

Job Specification:
Solution Architect - NVIDIA Cluster (End-to-End Design & Validation)

Travel: Occasional travel to datacenter sites outside the UK

Engagement: Contract Inside IR35

Department: Engineering/Advanced Compute

We are seeking a highly skilled Solution Architect with deep experience designing, validating, and delivering end‑to‑end NVIDIA GPU clusters in enterprise and hyperscale environments. This individual will own the full lifecycle of architectural design—from requirements gathering through implementation oversight and performance validation. They will work closely with engineering, networking, Dev Ops, security, and datacenter operations teams to ensure high‑performance, scalable, and resilient GPU infrastructure for AI, HPC, and ML workloads.

The role is primarily London‑based one day per week, with occasional international travel required to support datacenter design reviews, deployment validation, or site acceptance testing.

• Lead the architecture of NVIDIA GPU clusters leveraging technologies such as H100/H200, NVLink, NVSwitch, DGX, HGX, or Super Pod‑class designs.
• Produce high‑level and low‑level designs (HLD/LLD), including compute, network, storage, and power/cooling considerations.
• Validate hardware and platform selections, ensuring alignment with customer requirements and scalability goals.
• Design fabric architectures including Infini Band (200/400
  
  Gb), RoCE, and high‑performance east‑west traffic patterns.
• Define and execute validation test plans for GPU cluster performance, resilience, networking throughput, and workload behaviour.
• Oversee integration of GPU nodes, networking, and storage systems into the existing datacenter environment.
• Collaborate with Dev Ops/Platform teams to validate cluster orchestration (Kubernetes, Slurm, Bright Cluster Manager, or equivalents).
• Validate firmware, drivers, NCCL, CUDA libraries, and container environments for production readiness.

• Provide technical leadership across the full deployment lifecycle.
• Partner with datacenter operations to ensure correct rack layouts, cabling, airflow and power design.
• Support delivery teams during build‑out phases, ensuring the design is executed correctly.
• Participate in factory acceptance tests (FAT), site acceptance tests (SAT), and operational readiness reviews.

• Work closely with internal and external teams including network engineering, platform engineering, procurement, and vendors such as NVIDIA, Mellanox, Supermicro, Dell, or HPE.
• Provide technical guidance to customers, partners, and cross‑functional engineering teams.
• Communicate complex architectural concepts clearly to both technical and non‑technical audiences.

• Produce detailed architecture documents, diagrams, acceptance criteria, and operational runbooks.
• Ensure security, compliance, and governance standards are built into the design.
• Provide knowledge transfer and training sessions to internal teams where required.

• Proven experience architecting and delivering NVIDIA GPU clusters at scale (AI/ML/HPC environments).
• Strong hands‑on understanding of GPU interconnects (NVLink/NVSwitch) and DGX/HGX/Super Pod architectures.
• Deep knowledge of Infini Band and high‑performance networking architectures.
• Experience with cluster orchestration:
  Kubernetes, Slurm, PBS, or similar.
• Familiarity with AI/ML workload requirements, CUDA, Docker/OCI containers, and NVIDIA software stacks (NCCL, CUDA Toolkit).
• Comfort with Linux systems engineering, hardware validation, and troubleshooting across compute/network layers.

• Strong…