On-Site Mechanical Engineer — HVAC & Critical Systems

Jacobs; Milwaukee (WI); On-site; USD 95,000 - 131,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) plan

Stock purchase

Deferred compensation

PPTO

Paid holidays

Caregiver leave

Merit increases

Performance bonus

Stock options

Job summary

Jacobs seeks an On-Site Mechanical Engineer for a project near Baton Rouge, LA. This role serves as the field representative for mechanical systems, coordinating between construction and engineering design teams to ensure safe installation and commissioning readiness.

The ideal candidate has 10+ years in mechanical design/construction or 5+ years in hyperscale data centers, with experience in chilled water systems, CRAH/CRAC, and mission-critical environments.

Qualifications

• Bachelor's degree in Mechanical Engineering or related discipline.
• 10+ years of mechanical design, construction, commissioning, or operations experience; or 5+ years in hyperscale data center environments.
• Experience with chilled water systems, cooling plants, CRAH/CRAC systems, piping systems, and mission-critical environments.
• Strong understanding of specifications, codes, and industry standards.

Responsibilities

• Serve as the primary on-site representative for HVAC, cooling, piping, plumbing, and other mechanical systems.
• Perform daily site observations and assess installation progress and workmanship.
• Coordinate mechanical design clarifications and field solutions with project stakeholders.
• Facilitate responses to RFIs, submittals, equipment substitutions, and field conflicts.
• Support reviews of equipment layouts, utility routing, and coordination between trades.
• Participate in constructability reviews, BIM coordination activities, and mockup evaluations.
• Identify and document mechanical installation deficiencies and opportunities for improvement.
• Support factory testing, bench testing, startup activities, and commissioning preparation.
• Coordinate with QA/QC and commissioning teams to resolve installation issues.
• Attend project meetings and provide technical guidance on mechanical systems.
• Issue weekly reports summarizing observations, risks, corrective actions, and schedule impacts.
• Proactively identify design, quality, and schedule risks and support resolution strategies.

Skills

Mechanical design

Construction experience

Commissioning

Operations experience

Hyperscale data center experience

Education

Bachelor's degree in Mechanical Engineering

Job description

Jacobs seeks an On-Site Mechanical Engineer for a project near Baton Rouge, LA. This role serves as the field representative for mechanical systems, coordinating between construction and engineering design teams to ensure safe installation and commissioning readiness.

The ideal candidate has 10+ years in mechanical design/construction or 5+ years in hyperscale data centers, with experience in chilled water systems, CRAH/CRAC, and mission-critical environments.