Critical Environments Operator (Level 1-4)

About The Role

We are building a pipeline of talented Critical Environments Operators across all experience levels to support our 24/7/365 Operations & Maintenance team. As a Critical Environments Operator (Night Shift) at CyrusOne, you will be responsible for keeping mission-critical data center infrastructure running at peak reliability through overnight hours. You will operate, monitor, and maintain electrical, mechanical, and HVAC/R systems while upholding the highest standards of safety, workmanship, and customer service. This position supports night shift coverage, with shift schedules (8- or 10-hour shifts) varying by site on a rotating basis. A night shift differential is included in compensation for this role.

Key Responsibilities

• 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

The appropriate level will be determined based on your experience and qualifications.

• Level I: 0–2 years in operations, maintenance, or customer service roles. No prior data center experience required.
• 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. Familiarity with CMMS and work order processes is a plus.
• Level III: 5–7 years of data center or building engineering experience. Journeyman-level skills in electrical, mechanical, or HVAC/R.
• 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.

Requirements & Tech Stack

• Strong commitment to safety.
• 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.
• Desire to provide the highest levels of service to internal and external customers.
• Ability to lift up to 50 pounds, perform considerable walking, bending, and standing.
• Availability for 24/7/365 shift work, including after-hours emergency response.

Why CyrusOne?

• Shift differential pay for night shift compensation.
• Career growth with a defined progression path.
• Support AI, hyperscale, and cloud infrastructure.
• Global operational scale across North America, EMEA, and APAC.
• Award-winning culture.
• Values-driven operations grounded in CARE: Commitment, Accountability, Respect, and Excellence.