Commissioning (Cx) Field Engineer

Employment Type: Full-Time, W2

Duration: 12–24+ Months with potential for long-term project support

Travel/Onsite Requirement: 100% Onsite, Monday–Friday (50 hours/week expected)

Role Overview

We’re looking for a Commissioning Field Engineer to support ongoing construction and system startup activities for a mission-critical facility. This person will be the eyes and ears of the commissioning team onsite, working closely with vendors, contractors, and controls integrators to ensure systems are fully tested, documented, and turned over correctly.

The ideal candidate has a background in MEP systems, controls, or testing and enjoys being hands-on in the field with a proactive approach to issue resolution and system validation.

Key Responsibilities

Participate in daily site safety check-ins and attend GC-led toolbox talks

Lead or support daily Cx huddles with subcontractors, vendors, and controls teams

Review and adjust the commissioning micro-schedule based on site progress

Coordinate system readiness with trades (power, access, water, etc.)

Walk down systems and complete pre-functional checklists

Witness vendor-led equipment startups (UPS, chillers, ATS, fire pumps, etc.)

Monitor controls point-to-point (P2P) testing for accuracy and alarm logic

Execute or observe functional performance testing (FPT) and document results

Identify, log, and manage deficiencies through commissioning software tools

Review O&M manuals, startup sheets, and test documentation for completeness

Provide daily updates, participate in coordination meetings, and send summary reports

Requirements

8+ years experience in commissioning, field engineering, QA/QC, or MEP systems

Familiarity with mission-critical environments (data centers, labs, high-tech facilities)

Knowledge of mechanical, electrical, and control systems operations

Proficiency with commissioning tools like Bluebeam, CxAlloy, Smartsheet, or Facility Grid

Experience using test equipment (multimeter, IR camera, flow meters) is a plus

Strong communication and documentation skills

Why Join Us?

Be part of a high-performing, fast-growing team

Gain hands-on experience on complex technical systems

Opportunities to support long-term and future projects across North America

Full-time W2 employment with health benefits, paid time off, and more

Work directly with industry-leading clients and technology partners

Notice to all Employment, Staffing & Recruiting Agencies and Recruiters: We please ask that you do not directly email, call or visit our hiring managers. OnQ does not accept unsolicited resumes and should any be received from a third party they will not be considered, unless a signed agreement is in place. If you would like to discuss becoming a preferred staffing vendor to OnQ please contact our talent acquisition team who will advise you on the process.