Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU.
If you'd like to build the world's best AI cloud, join us.
*Note: This position requires presence in our San Francisco or San Jose office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.
What You’ll Do
Own mechanical design standards and reference architectures for large-scale AI data centers.
Develop cooling architectures for greenfield, retrofit, and partner-operated facilities.
Design central plants, heat-rejection systems, hydronic distribution, air-cooling systems, and direct-to-chip liquid-cooling infrastructure.
Perform cooling-load, heat-transfer, hydraulic, pressure-drop, psychrometric, and equipment-capacity calculations.
Develop and review P&IDs, equipment schedules, layouts, specifications, sequences of operation, and basis-of-design documents.
Select and size chillers, cooling towers, dry coolers, pumps, heat exchangers, CRAHs, CDUs, piping, valves, and water-treatment systems.
Evaluate designs for capacity, redundancy, failure isolation, maintainability, efficiency, water use, constructability, cost, and schedule.
Translate GPU, rack, and cluster thermal requirements into facility cooling requirements.
Review partner designs, vendor submittals, construction documents, and equipment packages for compliance with Lambda standards.
Coordinate mechanical interfaces with electrical systems, controls, building structure, hardware engineering, construction, commissioning, and operations.
Support equipment selection, long-lead procurement, factory testing, construction sequencing, commissioning, and system bring-up.
Investigate cooling failures and operational risks, driving lessons back into future designs.
Travel to project sites, manufacturers, and partner facilities as needed.
You
Have experience designing mechanical systems for data centers, mission-critical facilities, central plants, or large industrial environments.
Understand hydronic systems, heat transfer, chilled-water systems, heat rejection, pumping, filtration, and water treatment.
Can develop and review P&IDs, mechanical layouts, equipment schedules, technical specifications, and engineering calculations.
Understand mechanical redundancy, failure domains, maintainability, and operational requirements.
Can evaluate system performance across changing weather conditions and compute loads.
Understand applicable mechanical, plumbing, energy, and safety codes and standards.
Can balance cooling performance, efficiency, water consumption, reliability, cost, and delivery schedule.
Communicate clearly across engineering, construction, operations, vendors, and executive stakeholders.
Hold a bachelor’s degree in mechanical engineering or equivalent practical experience.
Nice to Have
Experience designing hyperscale, colocation, HPC, or AI data centers.
Experience with high-density GPU infrastructure and direct-to-chip liquid cooling.
Experience with CDUs, warm-water cooling, dry coolers, adiabatic systems, or water-side economization.
Familiarity with CFD, Pipe-Flo, AFT Fathom, Revit, or comparable engineering tools.
Experience with water chemistry, glycol systems, filtration, flushing, and cooling-system cleanliness requirements.
Experience supporting factory testing, commissioning, integrated systems testing, or failure investigations.
Professional Engineer licensure or progress toward licensure.
Salary Range Information
The annual salary range for this position has been set based on market data and other factors. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.
About Lambda
Founded in 2012, with 500+ employees, and growing fast
Our investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove
We have research papers accepted at top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG
Our values are publicly available: https://lambda.ai/careers
We offer generous cash & equity compensation
Health, dental, and vision coverage for you and your dependents
Wellness and commuter stipends for select roles
401k Plan with 2% company match (USA employees)
Flexible paid time off plan that we all actually use
Equal Opportunity Employer
Lambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.
Skills Required
- Experience designing mechanical systems for data centers, mission-critical facilities, central plants, or large industrial environments
- Understanding of hydronic systems, heat transfer, chilled-water systems, heat rejection, pumping, filtration, and water treatment
- Ability to develop and review P&IDs, mechanical layouts, equipment schedules, technical specifications, and engineering calculations
- Understanding of mechanical redundancy, failure domains, maintainability, and operational requirements
- Ability to evaluate system performance across changing weather conditions and compute loads
- Understanding of applicable mechanical, plumbing, energy, and safety codes and standards
- Ability to balance cooling performance, efficiency, water consumption, reliability, cost, and delivery schedule
- Clear communication across engineering, construction, operations, vendors, and executive stakeholders
- Bachelor's degree in mechanical engineering or equivalent practical experience
- Experience designing hyperscale, colocation, HPC, or AI data centers
- Experience with high-density GPU infrastructure and direct-to-chip liquid cooling
- Experience with CDUs, warm-water cooling, dry coolers, adiabatic systems, or water-side economization
- Familiarity with CFD, Pipe-Flo, AFT Fathom, Revit, or comparable engineering tools
- Experience with water chemistry, glycol systems, filtration, flushing, and cooling-system cleanliness requirements
- Experience supporting factory testing, commissioning, integrated systems testing, or failure investigations
- Professional Engineer licensure or progress toward licensure
Lambda Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lambda and has not been reviewed or approved by Lambda.
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Fair & Transparent Compensation — Pay is considered competitive for an AI infrastructure company, with posted ranges and observed offers indicating strong packages for senior technical roles. Compensation is often characterized as competitive or top‑shelf, aligning with market expectations.
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Healthcare Strength — Health, dental, and vision coverage are characterized as strong, with broad‑network plans noted and positive experiences highlighted. This foundation supports overall satisfaction with core insurance benefits.
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Leave & Time Off Breadth — Flexible or unlimited PTO is described as actually used, complemented by paid holidays and sick time. Generous parental leave examples further expand the time‑off offering.
Lambda Insights
What We Do
Lambda provides computation to accelerate human progress. We're a team of Deep Learning engineers building the world's best GPU workstations and servers. Our products power engineers and researchers at the forefront of human knowledge. Customers include Microsoft, MIT, Los Alamos National Lab, Disney, Tencent, Kaiser Permanente, Stanford, Harvard, Caltech, and the Department of Defense.
