Senior Mechanical Commissioning Project Engineer

fsttechnicalservices; Washington (District of Columbia); On-site; USD 130,000 - 150,000; Full time

Benefits offered by this job

Monthly per diem

Relocation assistance

Travel opportunities

Job summary

FST Technical Services seeks a Senior Mechanical Project Engineer to lead commissioning, testing, and validation on large-scale data center projects. You will own the process from design to execution, ensuring performance and reliability in mission-critical environments.

Ideal candidates bring data center experience, 7+ years in the field or 3+ years in commissioning, and are willing to travel or relocate. This role is based in Atlanta, GA or San Jose, CA with monthly per diem and mobilization

Qualifications

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

Responsibilities

• Lead commissioning activities across the full lifecycle.
• Execute functional testing, witness testing, and system validation.
• Manage assignments within schedule, budget, and quality expectations.
• Complete reports and manage time and expenses.
• Mentor junior engineers and support training.

Skills

Strong communication

Problem solving

Field leadership

Education

Bachelors in HVACR/Mechanical/Electrical Engineering

Job description

We’re excited to connect with candidates in Washington DC; however, this role is based in Atlanta, GA or San Jose, CA. The position offers opportunities for travel and relocation, and we’re seeking candidates who are open to this flexibility. Please note that the role is not based in Washington DC. Monthly per diem and mobilization is on offer.

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 tovalidatethat systems are designed, installed, and performing at the highest level.

We are seeking a Senior Mechanical Project Engineer who brings deep technicalexpertise, 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.

WhatYou willDo

Project Leadership & Execution

• Lead commissioning activities across the full lifecycle
• 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
• Troubleshoot system performance issues
• Review design documentation

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
• 7+years experienceor 3+ years commissioning
• 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

Travel Requirements

Travel to project sites as needed based on project demands.

Why FST

At FST, we value execution, accountability, andexpertise. Engineers haveopportunities to gain experienceintoleadership roles and work on complex, high-impact projects.

Important Notes

No visa sponsorshipavailable. Candidates mustbe authorized towork in the United States.

Salary range: $130,000 to $150,000

FST Technical does not offer employment-based visa sponsorship for this position. Applicants must be legally authorized to work in the United States without the need for employer sponsorship now or in the future.