Lead Mechanical Commissioning Engineer - Data Center

FST Technical Services; York (York County); On-site; USD 150,000 - 180,000; Full time

Benefits offered by this job

Per diem

Mobilization support

Long-term opportunity

Job summary

FST Technical Services seeks a Senior Mechanical Project Engineer to lead data center commissioning from design through execution. You will supervise HVAC, controls, and related systems, conduct testing, and ensure schedule, budget, and quality targets.

This is a site-based role with client-facing responsibilities and mentorship of junior engineers. Note: not remote; mobilization to Atlanta, GA is required for the project duration.

Qualifications

• 5+ years experience in commissioning engineering.
• 3+ years of Data center experience required.
• Degree in HVACR, Mechanical, Electrical Engineering or related field.

Responsibilities

• Lead commissioning activities across the full lifecycle of a data center build to include L1-L5.
• Execute functional testing, witness testing, and system validation.
• Manage assignments within schedule, budget, and quality expectations.
• Evaluate HVAC, controls, automation, fire safety systems.
• Lead meetings and communicate findings with clients and contractors.
• Mentor junior engineers and support training.

Skills

Commissioning experience

Data center experience

Communication skills

Education

Degree in HVACR/Mechanical/Electrical Engineering

Bachelor's degree in related field

Tools

BIM

Job description

Lead Mechanical Commissioning (Cx) Engineer - Data Center

Lead the Systems That Keep Critical Infrastructure Running

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 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.

What You will Do

Lead commissioning activities across the full lifecycle of a data center build to include L1-L5

Execute functional testing, witness testing, and system validation

Manage assignments within schedule, budget, and quality expectations

Technical Expertise & Problem Solving

Evaluate HVAC, chillers, boilers, pumps, and automation systems

Client Engagement

Lead meetings and communicate findings

Build relationships with clients and contractors

Operational Contributions

Complete reports and manage time and expenses

Team Development

Mentor junior engineers and support training

What You Bring

Core Qualifications

Degree in HVACR, Mechanical, Electrical Engineering or related field

5+ years experience in commissioning engineering

3+ years of Data center experience required

Technical Capabilities

Experience with HVAC, controls, automation, fire safety systems

Ability to read construction documents

Professional Skills

Strong communication and problem-solving skills

Physical Requirements

Ability to work in field environments and lift 30 lbs

Preferred

EIT, CEM, OSHA 30, BIM experience, Facility Grid

Travel Requirements

Travel to project sites as needed based on project demands.

Why FST

At FST, we value execution, accountability, and expertise. Engineers have opportunities to gain experience into leadership roles and work on complex, high-impact projects.

Compensation & Travel Package

• Base Salary: $150,000 to $180,000 depending on experience, comprehensive benefits, monthly per diem and mobilization support
• Long-term opportunity within FST’s growing commissioning organization

Important: This position is not remote or rotational from home. The successful candidate must be willing to mobilize to Atlanta, Georgia and remain site-dedicated for the duration of the project assignment.

• No visa sponsorship available. Candidates must be authorized to work in the United States.