Relativity Space
Construction Mechanical Engineer II
$104K–$156K
Long Beach, California, United States · Full-time · Posted Oct 30, 2026
- Experience
- Minimum 2+ years.
- Education
- Bachelor of Science degree in Mechanical Engineering or a related engineering field.
About the job
Supports the design, construction, commissioning, and handoff of mechanical systems for manufacturing and office facilities.
What you'll do
- Design and document mechanical systems, perform engineering calculations, and review drawings and vendor submittals for code compliance.
- Coordinate with engineering, construction, manufacturing, facilities, contractors, and vendors to deliver projects on schedule and within budget.
- Conduct site inspections, resolve field issues, and support system startup, testing, commissioning, and improvement.
What they ask for
- Bachelor of Science degree in Mechanical Engineering or a related engineering field.
- 2+ years of experience in mechanical design and engineering for infrastructure, manufacturing, or commercial building systems.
- Experience designing and specifying HVAC, hydronic/chilled water, plumbing, drainage, compressed air, and exhaust systems; developing Basis of Design documentation, load calculations, and equipment sizing.
- Familiarity with ASHRAE, Title 24, NFPA, and Uniform Plumbing Code (UPC), and experience creating or reviewing permit-ready mechanical drawings and specifications.
Nice to have
- Master’s degree in Mechanical Engineering or a related field; EIT Certification; or LEED GA or LEED AP accreditation.
- Background in cleanroom ventilation, specialty gas systems, or critical environment design.
Pay
$104,000–$156,000 USD base salary
Tools
AutoCAD, Revit, ASHRAE, Title 24, NFPA, Uniform Plumbing Code (UPC)
Model-written summary · the original posting is authoritative