Critical environment technician: Microsoft's CET job and pay
What a Microsoft critical environment technician does, the pay Microsoft states at each level, the cleared roles and the routes in.
A critical environment technician (CET) keeps a data center's power and cooling running: the generators, UPS systems, chillers, air handlers and controls that the servers depend on. The title is Microsoft's house term for the job. Other operators advertise the same work as critical facilities technician or critical facilities engineer, and CyrusOne calls it Critical Environments Operator.
On 22 October 2026, 78 live ads on this board had "critical environment" in the title: 28 at CyrusOne, 26 at JLL Data Centre Solutions, 21 at Microsoft, two at QTS and one at ABM. Ten of Microsoft's 21 were technician ads, and all ten stated an hourly pay range.
What the job involves
The work in Microsoft's postings falls into five recurring parts; the data center terminology guide defines the acronyms.
- Rounds and monitoring. Inspecting electrical, mechanical, HVAC and controls equipment for anything abnormal, and watching the same systems through telemetry from a facility operations center.
- Maintenance. Preventive, predictive and corrective work on the equipment you are trained on, each job logged as a work order in the computerized maintenance management system (CMMS).
- Alarms and incidents. Knowing what each critical alarm means, stabilizing an abnormal condition with emergency operating procedures (EOPs), and helping with the root-cause analysis afterwards.
- MOPs and change control. Work on live equipment follows a written method of procedure (MOP) or standard operating procedure (SOP), with a level of risk set for each job. Technicians carry them out and help write them, and senior technicians present maintenance plans for approval.
- Vendor escorts. Escorting contractors on site, energizing or de-energizing systems so they can work, keeping the work in scope, and stopping it when it is unsafe.
Microsoft's technician postings typically ask for 12-hour shifts that can include nights, weekends and holidays, and travel to other sites up to a quarter of the time. CyrusOne's operator postings ask for availability for emergency work at any hour. The Boydton, Virginia posting spells out the physical side: ladders, long periods standing, lifting up to 25 lb unaided and 50 lb with a lift assist, noise and heat, and normal color vision for electrical work.
CET, senior CET and the levels above
Microsoft's own postings lay out the ladder.
- Critical Environment Technician. The Boydton posting asks for a high school diploma or GED and three years of work or applied learning in mechanical, manufacturing, automotive, electrical, controls or data center settings, or equivalent experience. A CET builds skill in one discipline, and more experienced technicians review the work.
- Senior Critical Environment Technician. Three to five years of mission-critical experience: three in the Mt Pleasant, Wisconsin posting, five plus a year in a specialty in Quincy, Washington. Seniors work across disciplines, lead the on-site response when something fails, write procedures for complex equipment and review junior technicians' work.
- Critical Environment Technician Manager. Runs the technician team. A Fayetteville, Georgia posting asks for five years of mission-critical experience, prefers a year of managing people, and states $75,400–$167,900 a year for most US locations.
- Critical Environment Operations Manager. Leads the mechanical, electrical and controls team. A Georgia posting states $102,600–$202,800 and $127,600–$229,200 a year for its two levels.
| Level | From the posting | Stated pay |
|---|---|---|
| Critical Environment Technician | High school or GED and three years, or equivalent | $23.65–$37.07 or $27.45–$48.03 an hour |
| Senior Critical Environment Technician | Three to five years of mission-critical work | $34.13–$56.54 an hour |
| Critical Environment Technician Manager | Five years; managing people preferred | $75,400–$167,900 a year |
| Critical Environment Operations Manager | Leads the mechanical, electrical and controls team | $102,600–$202,800 or $127,600–$229,200 a year |
What Microsoft pays
Microsoft pays its CETs by the hour and prints the range at the foot of each US posting. The ten Microsoft technician ads on this board on 22 October 2026 carried three ranges:
- $23.65–$37.07 an hour: Critical Environment Technician in Cheyenne, Wyoming and Boydton, Virginia, and an Atlanta technician ad for Per Scholas trainees.
- $27.45–$48.03 an hour: Critical Environment Technician in Dulles, Virginia, and a Top Secret version in Manassas, Virginia.
- $34.13–$56.54 an hour: Senior Critical Environment Technician in Quincy, Cheyenne, Mt Pleasant and Manassas (the Manassas one requiring a polygraph), and a Top Secret technician role in Cheyenne that carries the senior band without the senior title.
On the postings read for this guide, those are Microsoft's level bands ATR-B, ATR-C and ATR-D, and they apply to most of the US; each has a separate, higher range for the San Francisco Bay Area and the New York City metro. The Boydton and Atlanta ads print both the B and C bands.
The median midpoint of the ten ranges is $42 an hour. Across the whole critical facilities hub that day it was $40 an hour from 105 hourly ranges, and $132,000 from 90 yearly ones; the critical facilities salary page keeps those figures current. A stated range is the employer's typical base pay for the level, not what anyone in the job earns, and the postings do not say where in a band an offer lands.
Where the jobs are
On 22 October 2026 Microsoft's ten technician ads were in seven towns: three in Cheyenne, Wyoming, two in Manassas, Virginia, and one each in Quincy, Washington; Atlanta, Georgia; Mt Pleasant, Wisconsin; Dulles, Virginia; and Boydton, Virginia. Microsoft had 48 live ads on the board that day, 13 of them in Virginia, and its company page shows what is open now.
CyrusOne's 28 operator ads stated no pay. New Albany, Ohio, Sterling, Virginia and Whitney, Texas had four each, and most of the rest were elsewhere in Texas. Counts like these move daily, and an ad is not a hire.
Cleared roles
Three of Microsoft's ten technician ads carried CTJ in the title with a clearance level: Top Secret technician roles in Manassas and Cheyenne, and a senior role in Manassas marked Poly. These need a U.S. government security clearance. The two read for this guide sit on Microsoft's U.S. Government Airgap team: the Cheyenne ad asks for an active Top Secret clearance, the Manassas one for Top Secret with SCI access and a polygraph, and both say Microsoft verifies the clearance before making an offer.
Both describe work with no outside connectivity, phones and smartwatches banned from operational areas, and uncleared vendors escorted on site. Pay sits in the ordinary bands: $27.45–$48.03 an hour for the Manassas Top Secret role and $34.13–$56.54 for the other two.
Screening is tight even without a clearance. Every Microsoft critical environment posting read for this guide requires the Microsoft Cloud background check at hire and every two years after, and the Boydton posting adds U.S. citizenship, verified by passport, and a criminal justice (CJIS) background check, because the role supports government customers.
The same job at other employers
CyrusOne grades its Critical Environments Operator from I to IV. Its Operator I posting in Whitney, Texas asks for up to two years in operations and maintenance or customer service, with no certificates required; the Operator III posting there wants journeyman-level electrical, mechanical or HVAC/R skills and five to seven years in data centers or building engineering. CyrusOne's company page lists its current openings.
On 22 October 2026 JLL Data Centre Solutions had 26 ads with critical environment in the title, QTS two and ABM one. The critical facilities technician page collects critical environment and critical facilities technician titles from every employer in one list.
How to get in
Microsoft's minimum years of experience come with "or equivalent experience", and none of the six technician postings read for this guide names a required certificate. The routes:
- Trade or plant experience. Microsoft's own page on the job lists the backgrounds it recruits from, among them electricians, electrical, mechanical and maintenance technicians, HVAC technicians, facility and shift engineers, and marine engineers. Its postings count mission-critical experience broadly, from refineries and hospitals to pharmaceutical and manufacturing plants, and list trade school or military technical training among the preferred qualifications.
- Per Scholas. Its Critical Facilities Technician course is free, runs 15 weeks full time, needs no prior experience, and teaches toward EPA 608, NFPA 70E and OSHA 10. Per Scholas announced the Atlanta course in May 2026 as co-designed with Microsoft; it also runs in Columbus. Microsoft's Atlanta technician ad with Per Scholas in its title requires completion of, or enrollment in, the program.
- Military. The Microsoft Military Data Center Pathway, run by Southside Virginia Community College with Microsoft and Hiring Our Heroes for transitioning service members, includes simulated ticket runs for both site services and critical environment teams. On 22 October 2026 Equinix had five SkillBridge critical facilities engineer trainee ads, in Dallas, Ashburn and Silicon Valley. The veterans guide covers how military trades map onto this work.
- A first certificate. If you hold none, EPA 608 is the cheap one that matters on the mechanical side. Federal rules require it of technicians who service equipment that could release refrigerants, it costs roughly $25–$175, and it does not expire.
The apprenticeships and training programs guide covers the other routes. Whichever you take, read three or four live postings first: the minimums are stated plainly, and they differ by site.