Senior Mechanical Commissioning Project Engineer

FST Technical Services • San Jose, CA

30d • $130,000 - $150,000

About The Position

At FST Technical Services, we ensure the most complex facilities operate exactly as intended. Our Commissioning division partners with clients across data centers and mission-critical environments to validate that systems are designed, installed, and performing at the highest level.

We are seeking a Senior Mechanical Project Engineer who brings deep technical expertise, field leadership, and the ability to drive outcomes in high-performance environments.
Why This Role Stands Out
This is not a documentation-driven role.

This is a position for someone who:
Owns system performance from design through execution
Understands how complex mechanical systems operate as a whole
Can identify and solve issues before they impact operations
You will work on large-scale, mission-critical data center projects where performance, reliability, and precision are non-negotiable.

Requirements

• Degree in HVACR, Mechanical, Electrical Engineering or related field
• 7+ years experience or 3+ years commissioning
• Data center experience required
• Experience with HVAC, controls, automation, fire safety systems
• Ability to read construction documents
• Strong communication and problem-solving skills
• Ability to work in field environments and lift 30 lbs

Nice To Haves

• EIT, CEM, OSHA 30, BIM experience

Responsibilities

• Lead commissioning activities across the full lifecycle
• Execute functional testing, witness testing, and system validation
• Manage assignments within schedule, budget, and quality expectations
• Evaluate HVAC, chillers, boilers, pumps, and automation systems
• Troubleshoot system performance issues
• Review design documentation
• Lead meetings and communicate findings
• Build relationships with clients and contractors
• Complete reports and manage time and expenses
• Mentor junior engineers and support training

What This Job Offers

• Job Type: Full-time
• Career Level: Senior