Hiring framework
Commissioning job levels
CAI's Senior Electrical Commissioning Engineer asks five to ten years and posted at $91,300 to $107,300. DLB Associates' Field Specialist I asks a degree or about seven years and posted at $99,750 to $120,225. Eight commissioning postings from six employers are side by side below, with the five levels we use to scope a commissioning search.
By Czarina Tabayoyong, Founder, Critical Path Hiring. Former Amazon, AWS and Google recruiter.
Last reviewed · First published
Postings are added as we read them. The employer table grows with each pay refresh.
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Employers
Each row quotes the employer's own posting, read on November 5, 2026. 4 of 8 state pay.
| Employer | Title | Experience asked | Testing scope | Travel | Posted pay |
|---|---|---|---|---|---|
| DLB AssociatesProvider | Commissioning Field Technician IIIPhoenix, AZ (hybrid, near a major airport)Posted July 25, 2026; closed August 23, 2026 | Bachelor's degree, or two years of hands-on installation, testing and troubleshooting plus three more years | Builds on Technician I and II; must be able to obtain NFPA 70E and OSHA 10 or 30 | Not stated | $78,750 to $95,812.50 a year |
| DLB AssociatesProvider | Commissioning Field Specialist IHybrid, U.S. field locations including Manassas, Dallas, Denver and Seattle | Bachelor's degree, or two years of hands-on testing plus a minimum of five years more | Writes commissioning plans, pre-functional checklists and functional test scripts; factory witness testing; directs vendors in testing; works independently or under limited supervision | Up to 75 percent | $99,750 to $120,225 a year |
| CAIProvider | Data Center Services Mechanical Commissioning Engineer, Staff IINot stated | Minimum of 2 years of data center commissioning; bachelor's degree or equivalent experience | Not stated by level | Up to 75 percent | Not stated |
| CAIProvider | Senior Data Center Services Electrical Commissioning EngineerAshburn, Columbus, Des Moines, Kansas City, Atlanta, Raleigh, Miami (hybrid) | Five to ten years of data center commissioning; bachelor's degree or equivalent experience | Writes electrical commissioning scripts, executes test scripts, reports daily to the commissioning project manager | 75 percent | $91,300 to $107,300 a year |
| CPGProvider | Electrical Commissioning Agent IIRemote, U.S.U.S. citizenship required | 3 to 5 years in the engineering field; degree a plus, or comparable experience | Factory acceptance and Level 1 through 5 tests; prepares test procedures with limited supervision; leads with supervision at times | Up to 75 percent | Not stated |
| QTS Data CentersOwner | Commissioning Engineer II (Electrical)Glendale, AZ | Three to seven years of technical training, military training or workplace equivalency | Level 3, 4 and 5 commissioning of base building systems; mentors more junior commissioning engineers | 30 to 50 percent | Not stated |
| Amazon Data ServicesOwner | Commissioning Engineer, AMER-Central ACxNot stated | 5+ years in mission critical facilities or data center infrastructure, 3+ years of commissioning, bachelor's in mechanical or electrical engineering, and NETA, ASHRAE or commissioning training | Leads factory witness testing; manages third-party commissioning vendors, whose scope is to execute pre-functional, functional and integrated systems tests; reviews design and submittals; input into test scripts | Not stated | Not stated |
| AmpiricalPower testing | Testing & Commissioning Engineer II, III, Sr. or Staff (substation)Remote, Northern Virginia needSubstation work, listed for comparison with data center commissioning ladders | Bachelor's (ABET) plus 2+ years (II), 4+ (III), 6+ (Sr.), 8+ (Staff) | One scope for all levels: relay settings, equipment testing, SCADA verification | Up to 75 percent | $38 to $85 an hour, one range for all levels |
Findings
- The numeral II asks for two years at CAI, three to five at CPG and three to seven at QTS.
- A senior title at one provider posted below a Specialist I title at another: CAI's Senior Electrical Commissioning Engineer at $91,300 to $107,300, DLB's Field Specialist I at $99,750 to $120,225.
- Owner and provider jobs with the same title are different jobs. Amazon's Commissioning Engineer manages the third-party vendors whose scope is to execute the tests. A provider's commissioning engineer is often the person executing them.
- Where a posting describes scope, the step up from technician to engineer is writing the test scripts. DLB's Field Specialist I writes the plans, checklists and scripts.
- 4 of 8 postings state pay. Ampirical gives one range, $38 to $85 an hour, for four levels.
Framework
The five levels we use to scope a commissioning search. Each level lists what the person has run, written or led, and one screening question for it.
Technician I
- Completed installation and pre-functional checklists (L2) and helped on startups (L3) with a lead present
- Holds or can obtain NFPA 70E and OSHA 10 or 30
Screen: Walk me through a checklist you completed. What did you do when a line item failed?
Titles we see at this level: Field Technician I, Commissioning Technician, Pre-Commission Technician
Technician II
- Ran functional tests (L4) from scripts someone else wrote, without a lead on site
- Logged and closed issues with the contractor
- Has worked energized equipment or live building systems under a permit
Screen: Which L4 tests did you run on your own, on what equipment, and who wrote the script?
Titles we see at this level: Field Technician II and III, Commissioning Agent II, Staff II
Engineer I
- Wrote L3 and L4 scripts from the sequence of operations and submittals
- Witnessed factory tests (L1) and signed off or rejected equipment
- Directed vendors and trades during testing
Screen: Tell me about a script you wrote that failed in the field. What was wrong with it?
Titles we see at this level: Field Specialist I, Commissioning Engineer II, Senior Commissioning Engineer at some providers
Engineer II
- Led integrated systems testing (L5) for a hall or building
- Owned the commissioning plan and schedule for a phase
Screen: You are running IST and the load bank trips at hour 3. What happens in the next hour, and who decides?
Titles we see at this level: Commissioning Lead, Senior Commissioning Engineer, owner-side Commissioning Engineer
Manager
- Ran commissioning across several buildings or a campus
- Managed third-party commissioning vendors or a team of engineers
- Set the commissioning requirements in the owner's project requirements or the contract
- Trained and mentored commissioning engineers
Screen: How did you staff the last campus you commissioned, and what would you change?
Titles we see at this level: Commissioning Manager, Commissioning Project Manager, Commissioning Authority
The titles under each level are our reading of the postings above. Each employer's own definitions apply to its jobs. Levels L1 to L5 are explained in the commissioning levels guide. Posted pay by role is on the commissioning pay page; pay by level will be added from the pay survey once it has enough answers.
Method
- We searched for commissioning postings that carry a level in the title (I, II, III, Staff, Senior, Specialist) and read each on the employer's site or a job board that shows the full text, on November 5, 2026.
- Each row quotes the posting. Where a posting leaves something out, the row says "Not stated". One DLB posting had closed when we read it; its dates are in the row.
- Ampirical's substation testing ladder is included to compare a power-side ladder with data center commissioning ladders.
- Eight postings is a small set, so we do not rank employers on it or treat it as a market survey.
Questions
What is the difference between a commissioning technician and a commissioning engineer?
In the postings we read, the line is drawn at who writes the test. Technicians complete checklists and run functional tests from scripts someone else wrote. Engineers write the scripts, witness factory tests and direct vendors during testing. DLB Associates' Field Specialist I posting lists writing the plans, checklists and test scripts as part of the job.
How many years of experience is a Commissioning Engineer II?
It depends on the employer. QTS asks three to seven years of technical, military or workplace experience for a Commissioning Engineer II. CPG asks three to five years for an Electrical Commissioning Agent II. CAI asks two years of data center commissioning for a Staff II. The same numeral means different things at different firms, so we level by what someone has run and written.
Does a senior title mean more pay?
Not across employers. CAI posted its Senior Electrical Commissioning Engineer, asking five to ten years of data center commissioning, at $91,300 to $107,300. DLB Associates posted its Commissioning Field Specialist I, asking a degree or about seven years, at $99,750 to $120,225. Compare the scope and the posted range instead.
How should I screen a commissioning candidate's level?
Ask which commissioning levels they ran, which they wrote the script for, and which they led. Someone who ran L4 tests from another engineer's scripts is a strong technician. Someone who wrote those scripts and directed vendors is an engineer. Someone who led integrated systems testing for a building is past both. The framework on this page has one question for each level.
Related
Commissioning pay ranges
Posted pay for commissioning engineers, managers and agents from public job postings, updated monthly.
Commissioning pay survey
Anonymous survey of base pay, per diem, overtime and travel from people who do the work. Results at 50 responses.
Talent supply
LinkedIn members with commissioning, critical facilities, controls and technician titles in nine metros, against projects under construction.
Hiring call
Book a hiring call and we'll talk through which roles your build needs and when to bring them on.
Czarina Tabayoyong
Founder and principal recruiter, Critical Path Hiring. Czarina recruits commissioning, MEP, power and critical facilities people for data center builds. She previously recruited cloud and data center architecture talent at AWS Professional Services, and PMO and project delivery talent for hyperscale data center campuses in Texas and Virginia.