How to Hire Data Center Engineers: Roles, Skills, Pay and Interview Questions

To hire data center engineers, first decide which kind you need: a critical facilities engineer who runs power and cooling, an IT infrastructure engineer who runs servers and network, or a construction and commissioning engineer who brings a new building online.

Then screen for hands-on experience with the exact equipment you operate, test how candidates follow MOPs and change control, and be upfront about shifts and on-call. Benchmark pay against the closest BLS occupations, because BLS does not track data center engineers as a separate job. Most strong candidates are already employed, so plan to recruit them directly rather than wait for applicants, and plan how you will keep them once they start. To see where new campuses are competing for the same engineers, check our US data center map.

What does a data center engineer do, and which type do you need?

Every data center engineer is measured on the same thing: no unplanned downtime. What they touch to get there varies a lot. A facilities engineer who has spent ten years on medium voltage switchgear is not a good fit for a rack-and-stack role, and a strong network technician will not be allowed near a live UPS bypass. Getting this split right before you post the job saves weeks of screening the wrong people.

For a deeper look at daily duties, shift patterns and credentials from the candidate side, see our guide to what a data center engineer does.

A simple test: if the role’s biggest risk is losing power or cooling to the white space, you need a facilities engineer. If it is a bad hardware swap or a network outage, you need IT. If the building is not finished yet, you need construction and commissioning people, often on contract, and then an operations team hired early enough to learn the site during commissioning.

What skills and certifications should you require?

Require the things a person cannot safely learn on your live floor. Prefer the things they can. Most data center engineering jobs do not legally require a certification, so be careful about turning nice-to-have courses into hard filters that shrink an already small pool.

Two notes on credentials. Uptime Institute’s courses (CDCTP, ATS, CDCMP, AOS and AOP) are education for individuals; Tier Certification is something a facility earns, not a person. If your site is Tier III (concurrently maintainable) or Tier IV (fault tolerant), look for people who understand what that design means for how maintenance must be sequenced. And for design or engineer-of-record work, licensure matters; our guide to PE vs EIT vs no license covers when to require it.

How much does it cost to hire a data center engineer?

BLS does not publish a separate occupation for data center engineers, so there is no official “data center engineer salary.” The closest benchmarks depend on the track. For degreed critical facilities engineers, electrical engineers (SOC 17-2071) are the nearest match. For IT infrastructure engineers, network and computer systems administrators (SOC 15-1244) are the nearest match. Treat both as reference points, not as data center pay.

A few things push real offers away from these benchmarks. Shift differentials, overtime and on-call pay can add meaningfully to base salary on rotating 12-hour schedules. Technician-level facilities roles without a degree often start below the electrical engineer median, while senior engineers with MOP ownership and Tier III or IV experience often land above it. The outlook for the two proxies also differs: BLS projects employment of electrical and electronics engineers to grow 8 percent from 2025 to 2035, and employment of network and computer systems administrators to decline 4 percent over the same period.

Contract versus direct hire matters here too. New builds often use contract commissioning and startup engineers for a defined window, then convert a few into the permanent operations team. Steady-state operations roles are usually direct hires, because the value of an engineer grows as they learn your specific site. Our breakdown of contract staffing vs direct hire walks through the tradeoffs.

Recruiter tip: Post the actual shift pattern (for example, “2-2-3 rotating 12s, nights included”) and the differential in the job ad. Experienced facilities engineers compare offers on schedule as much as base pay, and a vague “may require off hours” line reads as a red flag to the people you most want.

Where do you find data center engineers?

Start by knowing how tight your market is. The metro pressure index in our data center workforce report shows how much of each city’s electrical and mechanical workforce the projects under construction would need.

For local pay, operators and campus locations in key markets, see our Atlanta, Dallas-Fort Worth, Houston, Austin, San Antonio, Charlotte, Raleigh and Chicago data center engineer talent maps.

Experienced critical facilities engineers rarely scroll job boards. They are employed, often well paid, and move for a better site, schedule or growth path. Build your pipeline from the places this talent actually comes from.

• Military transition: Navy nuclear, electrician’s mate, machinist’s mate and Air Force or Army power production ratings map well to facilities work. The DoD SkillBridge program lets service members train with civilian employers in their final months of service.
• Adjacent critical environments: power plants, hospitals, semiconductor fabs, pharmaceutical plants, airports and university central plants all run redundant power and cooling under strict procedures.
• Licensed trades: journeyman and master electricians, HVAC technicians and stationary engineers, reached through union halls, apprenticeship programs and trade schools.
• Industry associations: local chapters of 7×24 Exchange and AFCOM bring together operators, builders and vendors. BICSI events are the place to meet cabling and ICT design talent.
• Vendor and service field engineers: people who service UPS, switchgear, generators and chillers for manufacturers or third-party maintenance firms already know the equipment and often want a single site with a steadier schedule.
• Schools and programs: electrical and mechanical engineering co-op programs, two-year electrical and HVAC technology programs, and IT networking programs for the infrastructure track.
• Commissioning and testing firms: for new builds, commissioning agents and electrical testing contractors are the main source of engineers who have run integrated systems tests.

How do you write the job description?

Lead with the track, the site type and the schedule. Name the equipment. Candidates search for “UPS,” “switchgear” and “BMS,” not “data center professional.” For general structure, see how to write a great job posting. Here is a template you can adapt.

What interview questions should you ask?

Use scenarios tied to your equipment. Listen for sequence, safety and communication, not just the right answer. For broader question banks, see our questions to ask an interviewee and behavioral interview questions.

• “Utility power drops and one generator fails to start. Walk me through the next ten minutes.” Good answers cover confirming UPS battery runtime and load, checking the ATS and paralleling gear, notifying the right people, and following the site’s EOP rather than improvising.
• “Show me how you would structure a MOP to put a UPS module into maintenance bypass.” Look for prerequisites, redundancy checks, step-by-step verification points, hold points, and a clear back-out plan.
• “When would you refuse to perform energized work, and what would you do instead?” Strong candidates reference an energized work permit, arc flash labels and PPE under NFPA 70E, and default to de-energizing.
• “A CRAH bank alarms high supply air temperature in one hall. How do you troubleshoot?” Listen for checking chilled water supply, valve position, fan status and BMS trends before touching setpoints.
• “What does concurrently maintainable mean in practice for how you schedule work?” Tests whether they understand Tier III design intent, not just the label.
• (IT track) “A customer reports a server offline after a remote hands ticket. What do you check?” Look for verifying the ticket against the asset record, checking power feeds and cabling labels, and escalating with evidence.
• (Commissioning) “Describe an integrated systems test you ran. What failed, and how was it resolved before turnover?” Real commissioning engineers can name the test level, the load bank setup and the specific deficiency.
• “Tell me about a time a change went wrong. What did you change in the procedure afterward?” The follow-up matters most: good engineers fix the process, not just the equipment.

Recruiter tip: Hand finalists a short, real MOP from your site with one step removed (for example, the redundancy check before opening a breaker) and ask them to review it. It takes ten minutes and tells you more about a facilities engineer than an hour of resume questions.

What red flags should you watch for?

• Talks about “just fixing it” on live equipment without mentioning a MOP, change approval or a second set of eyes.
• Casual about energized work, arc flash boundaries or lockout/tagout.
• Lists equipment brands on the resume but cannot describe a specific failure they diagnosed on that equipment.
• Says yes to the shift schedule without asking a single question about it. People who have not thought it through are the ones who leave in the first few months.
• For IT roles, weak documentation habits: no mention of labeling, asset records or ticket notes.
• For commissioning roles, experience that turns out to be observing tests rather than writing and running the scripts.

How do you make the offer and keep data center engineers?

Hiring is only half the problem. In the Uptime Institute Global Data Center Survey 2025, 37% of operators said they struggle to retain staff and 35% said staff are being hired away by competitors. With vacancy near record lows and new capacity going up fast, your engineers will hear from other employers. Our data center statistics page covers the market numbers behind that pressure.

• Move quickly. Strong candidates usually have more than one process running. Aim to go from final interview to written offer in days, not weeks.
• Put the whole package in writing. Base pay, shift differential, overtime policy, on-call pay and certification support. Engineers compare total pay and schedule, not base alone.
• Show a growth path. Spell out how a technician becomes an engineer, then a shift lead or chief engineer, and which courses or licenses you will pay for along the way.
• Onboard during commissioning when you can. Engineers who help commission a site learn its systems, write its first procedures and have a reason to stay.
• Check in early. Most regret shows up in the first few months, often over schedule or unclear expectations. Our guide to 90 day turnover covers how to catch it.

Frequently asked questions