Senior Solution Architect - AI Infrastructure

Hamilton Barnes Associates Limited; San Francisco (CA); On-site; USD 233,000 - 316,000; Full time

Benefits offered by this job

Founding-level ownership and visible价值

Direct access to founders

Onsite role in San Francisco

Job summary

Hamilton Barnes Associates Limited is seeking a Senior Solutions Architect / Network Infrastructure Engineer to design, deploy, and optimize GPU compute clusters. You will work directly with the founders in a high-ownership, hands-on environment, shaping the platform’s core infrastructure onsite in San Francisco.

You will lead topology design, hardware configurations, and bottleneck troubleshooting, bridging data-center specs to deployment while staying hands-on and customer-focused.

Qualifications

• Hands-on experience standing up GPU clusters at production scale.
• Experience with InfiniBand or RoCEv2 design and deployment.
• Ability to work directly with customers and founders.
• Willing to be onsite in San Francisco.

Responsibilities

• Design compute, storage, and networking topology for new cluster deployments.
• Specify node configurations, redundancy, and scaling plans.
• Lead deployment and troubleshooting on-site.
• Bridge data center specs to cluster deployment and rack fit-out.
• Implement GPU interconnect fabric using InfiniBand and/or RoCEv2.
• Document runbooks and SOPs reflecting how the infrastructure actually gets built and fixed.

Skills

GPU cluster deployment

InfiniBand design

RoCEv2 implementation

CUDA ROCm expertise

Customer-facing engineering

Hands-on engineer

Tools

InfiniBand hardware

RoCE fabric

Job description

Looking for a role with plenty of growth opportunities?

Join an early-stage company building GPU compute infrastructure from the ground up. As one of the first technical hires, you'll help shape the company's core infrastructure while working directly with the founders in a high-ownership, hands-on environment.

This company is seeking a Senior Solutions Architect / Network Infrastructure Engineer to lead the design, deployment, and optimisation of GPU compute clusters across networking, software, and infrastructure. This customer-facing role combines hands-on engineering with technical leadership, including cluster architecture, fabric engineering, deployment, troubleshooting, and customer onboarding, while influencing the future direction of the platform.

Responsibilities:

• Design compute, storage, and networking topology for new cluster deployments
• Specify node configurations, redundancy, and scaling plans
• Make real-time build decisions on-site during deployment, not just on paper
• Bridge data center specifications to cluster deployment, including power whips and rack fit-out
• Design and personally implement GPU interconnect fabric using InfiniBand and/or RoCEv2
• Plan and validate bandwidth, topology, and east-west throughput at scale
• Diagnose and fix network bottlenecks under load, hands-on rather than in theory
• Get workloads running well across both CUDA and ROCm stacks
• Own driver and firmware compatibility, NCCL/RCCL tuning, and performance benchmarking
• Troubleshoot low-level issues directly across drivers, firmware, and fabric managers
• Lead technical onboarding and workload validation for new customers
• Act as the direct escalation point when a customer's cluster underperforms, diagnosing it yourself
• Translate customer workload requirements into concrete infrastructure and configuration decisions
• Document runbooks and SOPs that reflect how the infrastructure actually gets built and fixed

Skills/Must Have:

• Direct, hands-on experience standing up GPU clusters at production scale, with specific clusters you built rather than systems you oversaw
• Real InfiniBand or RoCEv2 design and implementation experience
• Comfortable working across both CUDA and ROCm ecosystems, or clearly demonstrated ability to ramp fast on a new GPU vendor stack
• Direct customer-facing technical experience, comfortable being the person a customer talks to when something's wrong
• Genuine preference for staying hands-on over moving into pure management
• Based in or willing to relocate to San Francisco (onsite)

Benefits:

• Founding-level ownership and visibility
• Direct access to and collaboration with the founders
• Onsite role in San Francisco

Salary:

• $275,000 Base Salary