On-Site Mechanical Engineer: Mission-Critical Systems

Jacobs; Irvine (CA); On-site; USD 95,200 - 130,900; Full time

Benefits offered by this job

Medical, dental, vision

401(k) plan

Stock purchase program

Unlimited PPTO and holidays

Caregiver leave

Job summary

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. The role manages field representation of mechanical systems, coordinates between construction and design teams, and supports installation, testing, and commissioning activities.

The candidate brings 10+ years of mechanical design/construct/commissioning experience (or 5+ in hyperscale data centers), with strong knowledge of chilled water systems and CRAH/CRAC equipment, plus excellent communication and

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.

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

HVAC systems

Piping systems

Coordination

Field observations

Communication

Education

Bachelor's degree in Mechanical Engineering

Job description

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. The role manages field representation of mechanical systems, coordinates between construction and design teams, and supports installation, testing, and commissioning activities.

The candidate brings 10+ years of mechanical design/construct/commissioning experience (or 5+ in hyperscale data centers), with strong knowledge of chilled water systems and CRAH/CRAC equipment, plus excellent communication and