On-Site Mechanical Engineer – HVAC & Critical Infra

Jacobs; Freeport (TX); On-site; USD 95,200 - 130,900; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) plan

Stock purchase plan

PPTO & holidays

Job summary

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will serve as the field representative for HVAC and mechanical systems, coordinating between construction and engineering design teams to deliver critical infrastructure.

You will oversee installation, resolve field issues, and contribute to commissioning planning, with a focus on chilled water systems and mission-critical environments. Strong communication and on-site leadership are essential.

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.
• Ability to evaluate field conditions and provide practical solutions.
• 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

HVAC coordination

Coordination skills

Field problem solving

Reading specs & standards

Education

Bachelor's degree in Mechanical Engineering

Job description

Jacobs is seeking an On-Site Mechanical Engineer for a project near Baton Rouge, LA. You will serve as the field representative for HVAC and mechanical systems, coordinating between construction and engineering design teams to deliver critical infrastructure.

You will oversee installation, resolve field issues, and contribute to commissioning planning, with a focus on chilled water systems and mission-critical environments. Strong communication and on-site leadership are essential.