Critical Environments Operator (Level 1-4)
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 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. You will operate, monitor, and maintain electrical, mechanical, and HVAC/R systems while upholding the highest standards of safety, workmanship, and customer service.
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
- Cook 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
Levels & Experience
This is an evergreen posting that supports hiring across four levels. The right level for you will be determined based on your experience and qualifications during the interview process.
- 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.
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.
Why CyrusOne?
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
Award-winning culture — 2026 Top Workplaces USA National Award winner, recognized for our people-first environment
Values-driven — everything we do is grounded in CARE: Commitment, Accountability, Respect, and Excellence
Career Growth
We provide a defined progression from Associate through Lead Operator and beyond, with ongoing investment in your development.
Global Scale
We are part of a team operating across North America, EMEA, and APAC.
Award-Winning Culture
We are an award-winning workplace, recognized for our people-first environment.
Values-Driven
Our values are grounded in CARE: Commitment, Accountability, Respect, and Excellence.