Rack Systems Architect, Technical Lead

About the role

The Rack Systems Team at Fluidstack is responsible for owning the rack as a product for 150kW-class liquid-cooled deployments. This includes architecture, power budget, cooling, interconnect topology, structure, and serviceability, with tradeoffs made explicitly and defended on the record.

Responsibilities

• Own the rack as a product for 150kW-class liquid-cooled deployments: architecture, power budget, cooling, interconnect topology, structure, and serviceability, with tradeoffs made explicitly and defended on the record.
• Write and hold the interface control documents between rack and facility, precise enough that power, liquid, and network teams can each move independently without breaking the boundary.
• Lead the rack EE, ME, and thermal engineers, owning the architecture they execute and the technical calls that unblock them.
• Align the rack roadmap with accelerator vendors and Fluidstack's facility architecture, so each rack generation lands in a facility built to receive it.

Requirements

• 10+ years in system architecture of rack-scale compute at a hyperscaler, NVIDIA-ecosystem ODM, or AI systems company.
• You've owned a rack as a product end to end: power budget, cooling architecture, interconnect topology, weight, transport, and serviceability.
• You've shipped dense liquid-cooled rack-scale products, NVL-class or equivalent.
• You've led the EE, ME, and thermal engineers who executed your architecture, not just advised them.
• You've traded real things away on a shipping rack and taken the pushback that came with it.
• You write interface control documents that let both sides of a boundary move independently, and you've seen what happens when they don't.
• You hold a defensible view on copper versus optics for scale-up interconnect at 200G+ per lane, and you can argue where the crossover sits.

Qualifications

• Bonus: NVL-class rack programs, transport and seismic qualification, facility-side liquid cooling fluency, or direct engagement with accelerator vendor roadmaps.

Skills

Fluidstack is looking for individuals who have a deep understanding of system architecture for rack-scale compute, particularly in the context of liquid-cooled deployments. Experience with dense liquid-cooled rack-scale products, NVL-class or equivalent, and leadership of the engineering team executing on that architecture are essential. The ability to defend architectural decisions and align the rack roadmap with facility architecture is also crucial.

Benefits

Fluidstack offers competitive compensation and benefits, including a range of $208K - $263K, reflecting market rates for experienced professionals in the tech industry. We are committed to pay equity and transparency, and we provide a supportive environment for employees to thrive.

Pay

Compensation Range: $208K - $263K

Schedule

N/A