On-Site Mechanical Engineer — Critical Infra & Commissioning

Jacobs; San Antonio (TX); On-site; USD 95,000 - 131,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) plan

Stock purchase program

PPTO and holidays

Job summary

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will serve as the on-site representative for HVAC, piping, and other mechanical systems, coordinating with construction and design teams to ensure safe, compliant, and timely delivery.

The role requires 10+ years of relevant experience (or 5+ years in hyperscale data centers), strong BIM coordination skills, and excellent communication.

Qualifications

• Bachelor's degree in Mechanical Engineering or related field.
• 10+ years of mechanical design, construction, commissioning, or operations experience; or 5+ years in hyperscale data center 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

On-site engineering coordination

HVAC systems

Field observations

Design review

BIM coordination

Communication

Education

Bachelor's degree in Mechanical Engineering

Tools

BIM

CRAH/CRAC systems

Piping systems

Job description

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will serve as the on-site representative for HVAC, piping, and other mechanical systems, coordinating with construction and design teams to ensure safe, compliant, and timely delivery.

The role requires 10+ years of relevant experience (or 5+ years in hyperscale data centers), strong BIM coordination skills, and excellent communication.