Onsite Mechanical Engineer – Critical Infra & Commissioning

Jacobs; Oklahoma City (OK); On-site; USD 95,200 - 130,900; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) + stock purchase plan

Unlimited PPTO

Seven paid holidays

Caregiver leave

Job summary

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will act as field representative for mechanical systems, coordinating between construction teams and engineering design, supporting installation, issue resolution, quality reviews, and commissioning prep.

With 10+ years in mechanical design/construction or 5+ years in hyperscale data center environments, you will lead on-site oversight of HVAC, cooling, piping, CRAH/CRAC systems, and ensure compliance with

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.
• Excellent communication and coordination skills.

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

Field assessment

Communication

Coordination

Mechanical design

Education

Bachelor's degree in Mechanical Engineering

Tools

BIM coordination

Job description

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will act as field representative for mechanical systems, coordinating between construction teams and engineering design, supporting installation, issue resolution, quality reviews, and commissioning prep.

With 10+ years in mechanical design/construction or 5+ years in hyperscale data center environments, you will lead on-site oversight of HVAC, cooling, piping, CRAH/CRAC systems, and ensure compliance with