Lambda
Staff Mechanical Engineer
$314K–$465K
San Francisco Office (Fremont St) +2 · Hybrid · Staff · Full-time · Posted Sep 14, 2026
- Location
- San Francisco Office (Fremont St)
San Jose Office (First St)
Bellevue Office - Education
- Bachelor’s degree in mechanical engineering or equivalent practical experience.
About the job
Owns mechanical design standards and develops cooling systems for large-scale AI data centers, from design through commissioning and operational troubleshooting.
What you'll do
- Develop cooling architectures and mechanical designs, including central plants, hydronic distribution, air cooling, and direct-to-chip liquid cooling.
- Produce and review engineering calculations, P&IDs, layouts, specifications, and equipment selections; assess designs for reliability, efficiency, cost, and constructability.
- Coordinate with engineering, construction, vendors, and operations, and support procurement, testing, commissioning, and failure investigations.
What they ask for
- Experience designing mechanical systems for data centers, mission-critical facilities, central plants, or large industrial environments.
- Knowledge of hydronic and chilled-water systems, heat transfer, heat rejection, pumping, filtration, and water treatment.
- Ability to develop and review P&IDs, mechanical layouts, equipment schedules, technical specifications, and engineering calculations.
- Bachelor’s degree in mechanical engineering or equivalent practical experience.
Nice to have
- Experience with hyperscale, colocation, HPC, or AI data centers, or high-density GPU and direct-to-chip liquid cooling.
- Familiarity with CFD, Pipe-Flo, AFT Fathom, Revit, or comparable engineering tools.
Pay
$314K – $465K USD base salary
Tools
CFD, Pipe-Flo, AFT Fathom, Revit
AI focus
Designs facility cooling infrastructure for AI data centers and translates GPU, rack, and cluster thermal requirements into cooling requirements.
Model-written summary · the original posting is authoritative