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Staff Mechanical Engineer

San Francisco Office (Fremont St)💼 Full-time🗓 2026-09-14 → 2026-09-25

Core

Design mechanical cooling systems and reference architectures for large-scale AI data centers to support GPU clusters.

Role type

Staff Mechanical Engineer (Data Center Cooling)

Builds

Central plants, heat-rejection systems, hydronic distribution, air-cooling, and direct-to-chip liquid-cooling infrastructure for hyperscale AI facilities.

Domain

AI Cloud Infrastructure / Data Center Thermal Management

Deliverable

production ML models | infrastructure

Required skills

mechanical system design, hydronic systems, heat transfer, chilled-water systems, heat rejection, pumping, filtration, water treatment, P&ID development, mechanical redundancy analysis, code compliance, system performance evaluation, cost-schedule balancing.

Preferred skills

hyperscale/colocation/HPC/AI data center design, high-density GPU infrastructure, direct-to-chip liquid cooling, CDUs, warm-water cooling, dry coolers, adiabatic systems, water-side economization, CFD, Pipe-Flo, AFT Fathom, Revit, water chemistry, glycol systems, factory testing, commissioning, failure investigation, Professional Engineer licensure.

Technologies

CDUs, warm-water cooling, dry coolers, adiabatic systems, water-side economization, CFD, Pipe-Flo, AFT Fathom, Revit

Responsibilities

Own mechanical design standards and reference architectures; develop cooling architectures for greenfield and retrofit facilities; design central plants and liquid-cooling infrastructure; perform thermal and hydraulic calculations; select and size cooling equipment; evaluate designs for efficiency and reliability; translate thermal requirements into facility specs; review partner designs for compliance; coordinate with electrical and hardware teams; support procurement and commissioning; investigate cooling failures.

Seniority

Staff, hands-on IC with strategic oversight

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