Lead Mechanical Engineer – Data Center Infrastructure
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Job Description
Lead Mechanical Engineer responsible for mechanical design of high-performance data centers. Driving innovative cooling solutions and thermal management for AI infrastructure in a rapidly scaling company.
Responsibilities:
- Develop and maintain the mechanical POR for Giga Data Centers, defining the "Gold Standard" design that enables manufacturing of reliability and efficiency at scale
- Author and own the internal engineering library including technical specifications and Basis of Design documents, deciding what we build and how we measure it
- Design to global and local standards, leveraging ASHRAE TC 9.9 to define environmental envelopes for AI hardware and ensuring compliance with ASHRAE 90.1 for energy efficiency
- Guide external engineering firms to localize designs while maintaining strict adherence to core performance intent and standardization requirements
- Validate airflow patterns and rack-level thermal performance using computational fluid dynamics, ensuring compliance with ASHRAE thermal guidelines for Class A1-A4 environments
- Execute rigorous hydraulic analysis and thermal load flow studies, conducting pipe stress analysis per ASME B31 standards to ensure system integrity under thermal expansion and seismic events
- Engineer complex cooling loops (Direct-to-Chip, Immersion, RDHx) aligned with OCP (Open Compute Project) specifications for liquid cooling interoperability
- Select and specify pumps, fans, chillers, dry coolers, and control valves for high-density compute environments
- Create detailed Bills of Material (BOMs), Quantity Take Offs (QTOs), and Commissioning scripts to support a manufacturing-first supply chain
- Develop Sequence of Operations (SOO) and Control Narratives that dictate how mechanical systems respond to dynamic AI load changes
- Use advanced simulation tools to optimize thermal performance and validate designs before manufacturing
Requirements:
- Professional Engineer (PE) license required
- Bachelor's or Master's degree in Mechanical Engineering
- 7+ years of mechanical engineering experience with strong focus on mission-critical or industrial facilities
- Deep working knowledge of ASHRAE TC 9.9 (Thermal Guidelines for Data Processing Environments)
- Familiarity with ASME B31.3/B31.9 (Process Piping) for liquid cooling loops
- Strong background in CFD analysis using tools like 6Sigma or Ansys
- Experience with pipe stress analysis software (Caesar II or AutoPIPE)
- Proficiency in Revit/AutoCAD for mechanical design
- Experience with hydraulic modeling software (AFT Fathom or Pipe-Flo)
- Proven ability to create engineering standards from scratch rather than just following existing ones
- Strong understanding of high-density cooling solutions and thermal management
- Experience specifying HVAC equipment including chillers, pumps, and cooling towers
- Track record developing standardized designs for scalable deployment
Benefits:
- Subsidized health, dental, and vision insurance
- Significant equity in a profitable, IPO-bound company
- 401(k) with 4% employer match
- Unlimited PTO
- Parental leave FSA/HSA options
- Commuter benefits
- Monthly team onsites across all offices
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