Stationary / Operating Engineer recruiters who bring you a focused shortlist
Data Center Headhunters are Stationary / Operating Engineer recruiters for data center owners, operators and builders. Send us the open role and we find working Stationary / Operating Engineer candidates, qualify each one live and give you a short list to interview. No upfront fee. You pay only if you hire.
You are hiring someone to run boilers, chillers and pumps on a licence-bound schedule, and the first question is whether the licence you need matches the one they hold.
This is what we do all day: recruit data center professionals.
No postings. No stacks of resumes. No chasing. You interview a short list.
No upfront fee. You pay only if you hire.
No upfront fee. You pay only if you hire.
We offer a candidate replacement guarantee on standard search agreements. The applicable period and exact terms are set out in the signed client recruiting agreement.
- No upfront fee
- Pay only if you hire
- Data centers only, construction to operations
- Local and 100% travel candidates
- Replacement guarantee on standard searches
- Stationary / Operating Engineer
What does this hire really come down to?
A stationary or operating engineer runs plant equipment such as boilers, steam systems, chillers, pumps and compressors, usually on shifts. Many jurisdictions license the grade, and the grade limits the pressure and capacity they may be responsible for. The licence is local, so check with the authority having jurisdiction rather than assuming a credential carries across borders.
This differs from a critical facilities engineer, who may focus on electrical distribution and operate the data hall systems. The operating engineer owns the mechanical plant and its logs. A chief engineer sits above and answers for the whole plant and its crew. If your hall depends on a central plant, the operating engineer is a safety and uptime role, not a technician with a different title.
Union and non-union sites differ in how work is assigned. In some buildings the operating engineer may only touch certain systems. Clarify that before you interview.
What do we check before you see anyone?
Ask for the exact licence class, issuing authority and whether it is current. Then ask what equipment it permits them to run. Ask them to describe a start-up or changeover of a chiller plant under load, including checks before and after.
- Ask for the exact licence class, issuing authority and whether it is current. Then ask what equipment it permits them to run.
- Ask them to describe a start-up or changeover of a chiller plant under load, including checks before and after.
- Ask how they keep logs and what readings made them act before an alarm did.
- Ask about water treatment and blowdown habits, since a neglected loop damages equipment slowly.
Where do we find these candidates?
Operating engineers from hospitals, universities and large commercial towers know shift plant work and licensing. Industrial plant operators from manufacturing or food processing bring heavy equipment skill but may need to learn data hall redundancy. Military or marine engineers sometimes transition well, once training is checked against local licensing.
- Operating engineers from hospitals, universities and large commercial towers know shift plant work and licence regimes.
- Industrial plant operators from manufacturing or food processing bring heavy equipment skill and may need to learn data hall redundancy.
- Military or marine engineers sometimes transition well, though you must check that their training meets your jurisdiction's licensing.
Which hiring mistakes should you avoid?
Do not treat the licence as optional because a technician seems capable. If the authority requires it, the building is out of compliance. Do not assume one jurisdiction's grade carries over to another. Do not ignore shift pattern. Nights and weekends are central to who accepts.
- Treating the licence as optional because a technician seems capable. If the authority requires it, the building is out of compliance.
- Assuming one jurisdiction's grade carries over to another.
- Ignoring shift pattern. Nights and weekends are central to who accepts.
Your search in 3 steps
- Confirm the licence requirement
We ask you for the authority's rule and the plant's equipment before searching, so we only approach eligible people.
- Verify and interview
We screen on licence status and hands-on plant history, then ask the operating questions above.
- Flag union and shift issues
We tell you where work rules or rotations will narrow the field.
Licence grades, plant size and what you should verify
Licence grades usually tie to plant capacity, and some jurisdictions tie them to the type of equipment too. Ask the candidate to name the grade, the issuer and the date it was last renewed, then check it against the authority's own lookup where one exists. Nothing in a training course or a general certificate replaces this step, and a refrigerant handling certificate is a separate matter from a plant licence.
Also ask who held responsibility on the shift when they were the senior person on duty. Running a plant alone overnight is different from working beside a chief, and your roster decides which you need.
Finally, discuss rotation and relief cover openly. Plant licences are scarce, so one absence can leave a shift uncovered, and candidates will ask who covers sickness and leave before accepting. Also state which systems the engineer may operate alone and which need a second licensed person present, because that rule shapes both the job and the pay conversation.
Where do we fill this role?
What does BLS publish for this role?
The figure below comes from the national OEWS row for Stationary Engineers and Boiler Operators. Read the mapping badge before using it in a budget. A broader occupation can include jobs outside data centers. Compare your seat’s responsibilities and pay basis with the published occupation rather than treating the median as an offer quote.
Broader occupation. Stationary Engineers and Boiler Operators is a broader occupation based on the work described, not a separate data center wage series. BLS does not distinguish this title, experience level, shift, credentials or data center employers. Confirm the actual duties before using this comparison.
| Area | Median annual wage | BLS occupation |
|---|---|---|
| United States | $78,620 | Stationary Engineers and Boiler Operators (SOC 51-8021) |
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. SOC 51-8021 Stationary Engineers and Boiler Operators, United States. View this release at BLS.
Not ready to start a search?
We tell you where qualified Stationary / Operating Engineer are working in your area and what it takes to move them. No fee, no obligation.
Paste or upload your JD. We flag what will put strong candidates off. No fee, no obligation.
Open roles
Questions
How long until I get a shortlist for an operating engineer?
The licence requirement narrows the pool, so timing depends on your jurisdiction and shift pattern. We tell you early whether the licence class is realistic for the market.
Will counteroffers be a problem?
They are common because licensed operators are hard to replace. We ask early what the employer would change and whether it addresses shift or pay concerns.
Do operating engineers relocate?
Licensing may restrict them, since a licence from another jurisdiction may need re-examination. We ask about this up front and tell you the effect on timing.
Is travel or per diem involved?
Normally the work is on one site. If you need cover across several plants, say so, since it changes both the licence and the candidate pool.
How do you judge fit with our plant?
We compare equipment type, plant size and shift pattern with the candidate's history. Running a similar central plant matters more than a similar title.
If we need licensed cover for several shifts of the central plant, can we fill them together?
Yes, and we would raise it at the start, because shift cover changes which licence grades you need on each rotation. The approved fee terms on this page still apply and are confirmed before introductions.
Start your search
Which related roles might you also need?
Related hiring situations
Related hiring resources
- Hiring guide: Critical Facilities Operations
- Every Critical Facilities Operations title
- Credential glossary
- How long a search takes
- MOPs, SOPs and EOPs: what candidates should have written or followed
- Switching authority and the qualified person, in hiring terms
- Shift rotations in critical operations and how they change the search
How a search runs
How does The Six-Step Search work?
Every search runs the same six steps. We agree the brief with you, map where the people work, find direct contact routes, reach out personally and repeatedly, then qualify each candidate live. You only see a short list of people who fit, with notes on each, and we stay with you through offer and start.
- 01
Search Calibration
You get: A written brief you sign off on: scope, must-haves, pay band and who not to approach.
- 02
Market Mapping
You get: A map of the companies and projects where your future hire is working today.
- 03
Professional Contact Intelligence
You get: Verified direct contact routes to the people on that map, not job board replies.
- 04
Persistent Personalized Outreach
You get: Repeated, role-specific outreach to people who are not looking, in your words.
- 05
Live Candidate Qualification
You get: Each candidate is screened live against your brief before you hear their name.
- 06
Candidate Intelligence and Process Support
You get: A short list with candidate briefs, then support through interviews, offer and start.
What should you know before you send a role?
Is there a guarantee?
We offer a candidate replacement guarantee on standard search agreements. The applicable period and exact terms are set out in the signed client recruiting agreement.
What don't you do?
We do not post your job on boards, send stacks of unscreened resumes or charge an upfront fee. We do not approach candidates for your search before the brief is agreed with you.
Need this person?
No upfront fee. You pay only if you hire.
We offer a candidate replacement guarantee on standard search agreements. The applicable period and exact terms are set out in the signed client recruiting agreement.