Senior HVAC Engineer, Data Center Systems Lead

Giga Energy; San Francisco (CA); On-site; USD 90,000 - 122,000; Full time

Benefits offered by this job

Subsidized health, dental, and vision

Equity (options)

401(k) with 4% employer match

Unlimited PTO

Parental leave

FSA/HSA

Commuter benefits

Job summary

Giga Energy is seeking a Senior Mechanical Engineer to own HVAC and mechanical system design for AI data center infrastructure from concept through construction documents. You will handle load calculations, equipment selections, hydronic modeling, and ductwork/piping sizing, delivering fully produced designs on a fast timeline.

You will work on-site in multiple offices with a focus on fast, practical execution.

Qualifications

• Bachelor’s degree in Mechanical Engineering.
• 5+ years of professional HVAC design experience.
• Proficiency in AutoCAD and Revit MEP for system design and modeling.
• Proficiency in Trane Trace, Carrier HAP, or similar load calculation software.
• Proficiency in PipeFlo or similar hydronic system modeling software.
• Strong working knowledge of ICC/UPC codes and ASHRAE standards (62.1, 90.1, 90.4, and related).
• Demonstrated competence in load calculations, psychrometrics, piping and ductwork sizing, and equipment selection.

Responsibilities

• Lead detailed HVAC mechanical design for mission-critical data center facilities, from schematic design through construction documents.
• Perform load calculations, psychrometric analysis, ductwork sizing, piping sizing, and equipment selections.
• Model and analyze hydronic systems using PipeFlo or equivalent software.
• Develop system models and energy analyses using Trane Trace, Carrier HAP, or similar tools.
• Produce design documentation in AutoCAD and Revit MEP, maintaining coordination-ready models throughout design phases.
• Apply ICC/UPC codes and applicable ASHRAE standards to ensure compliant, optimized designs.
• Collaborate with other disciplines to integrate mechanical systems into the broader facility design.
• Interface with equipment vendors and contractors to validate selections and support procurement.
• Support construction administration, RFI responses, and submittal reviews.

Skills

Load calculations

Psychrometrics

Piping sizing

Ductwork sizing

Equipment selection

CFD analysis

Education

Bachelor's degree in Mechanical Engineering

Tools

AutoCAD

Revit MEP

Trane Trace

Carrier HAP

PipeFlo

Job description

Giga Energy is seeking a Senior Mechanical Engineer to own HVAC and mechanical system design for AI data center infrastructure from concept through construction documents. You will handle load calculations, equipment selections, hydronic modeling, and ductwork/piping sizing, delivering fully produced designs on a fast timeline.

You will work on-site in multiple offices with a focus on fast, practical execution.