Hiring guide · Energy & Utilities
How to Hire a Stationary Engineer
Pay benchmarks, qualifications, sourcing, screening and interview questions for hiring stationary engineers, plus a plan to get them productive fast.
Write a clear job description, offer competitive pay (the national median is $78,620), recruit through community college power plant, process technology and line programs, verify State or city stationary engineer license where applicable, run a structured interview with a practical skills check, and onboard with a 30-60-90 day plan.
Pay data: BLS OEWS, May 2025 · Outlook: BLS 2025–35 · Checked October 15, 2026
The hiring market for stationary engineers
There are about 31,200 stationary engineers employed in the U.S., with roughly 3,200 openings each year. Employment is projected to change +3.1% from 2025–35 (about as fast as average). Most openings come from replacing workers who retire or change careers, so a steady pipeline matters.
Pay benchmarks for offers
| Candidate level | Annual | Hourly* |
|---|---|---|
| Entry level (10th–25th percentile) | $50,590–$63,160 | $24.32–$30.37 |
| Typical / mid-career (median) | $78,620 | $37.80 |
| Experienced (75th percentile) | $101,150 | $48.63 |
| Top of market (90th percentile) | $125,390 | $60.28 |
*Annual ÷ 2,080 hours except median. National BLS data; adjust for your state and metro area. Many states and cities now require pay ranges in job postings.
What to look for
Must-haves
- High school diploma or equivalent (typical entry level)
- Licensing or certification required in your state
- Boiler operation
- Problem solving
Nice-to-haves
- State or city stationary engineer license
- Boiler operator license
- EPA Section 608
- Experience with boilers and chillers
Where to find stationary engineers
- Community college power plant, process technology and line programs
- Military nuclear and engineering veterans
- Utility and union apprenticeship programs
- Referrals and internal transfers from maintenance crews
- Job postings that use common alternate titles: Boiler Operator, Operating Engineer (Building), Chief Engineer, Building Engineer
Screening checklist
- Aptitude testing such as EEI POSS, MASS or CAST where used
- Drug and alcohol testing, including DOT rules for covered roles
- Background checks and site-access requirements
- Physical capability for climbing, lifting and respirator use where required
Follow federal, state and local rules on background checks, drug testing and fair-chance hiring, and apply screening consistently to all candidates for the role.
Interview questions to ask
Ask every candidate the same questions and score answers on a structured scorecard.
1. “What equipment have you operated?”
What a strong answer includes: List systems.
2. “Are you licensed?”
What a strong answer includes: Share grades.
3. “How do you troubleshoot HVAC issues?”
What a strong answer includes: Explain process.
4. “Can you work shifts and on call?”
What a strong answer includes: Be honest.
5. “How do you keep logs?”
What a strong answer includes: Show discipline.
Practical skills checks
A short demonstration beats a perfect resume. Ask candidates to talk you through, or perform under supervision, tasks such as:
- Test a Low-Water Cutoff (see the steps)
- Log Boiler Readings (see the steps)
- Troubleshoot a Hot-Room Complaint (see the steps)
Red flags
- Can’t describe basic safety practices for the role
- Vague or inconsistent work history with no explanation
- Unfamiliar with core terms such as Boiler, Chiller, BAS
- Negative talk about every past employer or coworker
Onboard for retention
The first 90 days decide whether a new hire stays. Use our Stationary Engineer 30-60-90 day onboarding plan and give every new hire the same foundation with Stationary Engineer training. Show them the path forward: Helper or Apprentice → Licensed Stationary Engineer → Shift or Assistant Chief Engineer → Chief Engineer.
Hiring stationary engineers: FAQ
How much should I pay a stationary engineer?
The U.S. median wage for stationary engineers is $78,620 per year ($37.80/hour), according to BLS May 2025 data. Entry-level offers often fall near the 25th percentile ($63,160), while experienced hires command closer to the 75th percentile ($101,150). Adjust for your local market.
What qualifications should a stationary engineer have?
BLS lists “high school diploma or equivalent” as the typical entry-level education. Look for State or city stationary engineer license and Boiler operator license where relevant, plus skills such as boiler operation, chiller and hvac systems, and building automation.
How long does it take to train a new stationary engineer?
Becoming qualified typically takes 1–4 years. After hire, plan for a structured 30-60-90 day onboarding period; BLS classifies on-the-job training for this occupation as “long-term on-the-job training.”