Critical Environments Operator (Level 1-4) - NIGHT SHIFT

CyrusOne; Phoenix (AZ); On-site; USD 50,000 - 70,000; Full time

Benefits offered by this job

Night shift differential pay

Career growth opportunities

Support for cutting-edge technology

Job summary

CyrusOne is searching for Critical Environments Operators for night shift roles in Phoenix, Arizona. The position involves monitoring mechanical, electrical, and HVAC/R systems, ensuring operational reliability in a 24/7 data center environment.

This role is suited for various experience levels; from those starting their careers to seasoned technicians. A commitment to safety, collaboration, and customer service is essential, along with potential for career growth.

Qualifications

• Strong safety mindset and willingness to learn.
• Entry-level skills in electrical, mechanical, or HVAC/R disciplines.
• Ability to operate independently and troubleshoot systems.
• Active HVAC certification or Journeyman/Master Electrician license preferred.

Responsibilities

• Monitor and operate mechanical, electrical, and HVAC/R systems.
• Respond to building system alarms and manage critical load protection.
• Execute preventive maintenance work orders.
• Use CMMS to track work orders and labor hours.
• Coordinate with contractors and enforce safety protocols.

Skills

Safety commitment

Verbal communication

Problem-solving

Microsoft Word proficiency

Microsoft Excel proficiency

Education

High school diploma or equivalent

Technical degree or trade program completion

Tools

Computerized Maintenance Management System (CMMS)

Job description

About the Role

We are building a pipeline of talented Critical Environments Operators across all experience levels—from associates just starting their careers in data center operations to seasoned lead technicians ready to mentor others and drive operational excellence. As a Critical Environments Operator (Night Shift) at CyrusOne, you will be part of a 24/7/365 Operations & Maintenance team responsible for keeping mission‑critical data center infrastructure running at peak reliability through overnight hours.

What You Will Do

• Monitor and operate data center mechanical, electrical, and HVAC/R systems to ensure continuous uptime and reliability.
• Respond to building system alarms, prioritizing critical load protection, equipment preservation, and root cause analysis.
• Execute preventive maintenance work orders and follow SOPs, MOPs, EOPs, and MMRs as appropriate.
• Use a Computerized Maintenance Management System (CMMS) to track work orders, labor hours, and PMs.
• Coordinate with contractors and vendors; enforce Lockout/Tagout and other safety protocols.
• Perform equipment and system operational modifications, including critical switching and safe working area setup.
• Maintain awareness of and compliance with all company, government, and client policies, procedures, and EHS requirements.
• At senior levels: provide mentorship to junior operators, lead critical switching events, and participate in capacity planning and reporting.

Levels & Experience

• Level I – No prior data center experience required. Ideal for candidates eager to learn data center O&M, with 0–2 years in operations, maintenance, or customer service roles. Strong safety mindset and willingness to learn are the most important qualities.
• Level II – 3–5 years of experience in Tier 2, 3, or 4 data centers or a technical facility maintenance role. Entry‑level skills in electrical, mechanical, or HVAC/R disciplines—whether through a degree, trade program, or hands‑on work experience. Familiarity with CMMS and work order processes a plus.
• Level III – 5–7 years of data center or building engineering experience. Journeyman‑level skills in electrical, mechanical, or HVAC/R. Ability to operate independently, troubleshoot systems, stabilize operations during incidents, and guide less experienced team members.
• Level IV – 7+ years of relevant experience with demonstrated expertise at the journeyman or master level. Active HVAC certification or Journeyman/Master Electrician license preferred. Proven ability to lead operational activities, manage vendor relationships, and support team development.

What We Are Looking For

• Strong commitment to safety—always.
• Ability to work overnight shifts on a rotating schedule, with shift lengths varying by site (8 or 10 hours).
• Clear verbal and written communication skills.
• Solid problem‑solving and decision‑making ability.
• Proficiency with personal computers, including Microsoft Word and Excel.
• Ability to manage multiple priorities in a fast‑paced, high‑stakes environment.
• Willingness to work a flexible schedule, including on‑call rotation and extended hours during emergencies.
• Team‑first mindset promoting collaboration and shared success.
• Desire to provide the highest levels of service to internal and external customers.

Work Environment

This role operates in a fast‑paced, physically active data center environment. Candidates must be able to lift up to 50 pounds, perform considerable walking, bending, and standing, and be available for 24/7/365 shift work including after‑hours emergency response.

Benefits

• Night shift differential pay.
• Career growth – a defined progression from Associate through Lead Operator and beyond, with ongoing investment in your development.
• Cutting‑edge work – support AI, hyperscale, and cloud infrastructure for some of the world’s most demanding customers.
• Global scale – be part of a team operating across North America, EMEA, and APAC.
• Values‑driven culture grounded in CARE (Commitment, Accountability, Respect, and Excellence).

EEO & Legal Information

CyrusOne is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or other legally protected status. CyrusOne provides reasonable accommodation for qualified individuals with disabilities in accordance with the Americans with Disabilities Act (ADA) and any other state or local laws. The law requires CyrusOne to post a notice describing the federal laws prohibiting job discrimination. For more information on your rights, please see the relevant legal resources. CyrusOne will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay.