Assistant Critical Operations Manager

STACK Infrastructure • Plano, TX

5d • Onsite

About The Position

STACK Infrastructure is seeking an Assistant Critical Operations Manager (ACOM) to support a local data center campus in Plano, Texas. The ACOM assists the Critical Operations Manager in maintaining mechanical, electrical, fire life safety, base building, and other internal data center systems, and helps implement programs focused on Safety, Team, Availability, Communication, and Knowledge. The role reports to the Critical Operations Manager.

The ACOM implements the Data Center Operations Program at the site, trains employees, and ensures staff are qualified to perform their duties. The position includes holding regular team meetings and individual one-on-one sessions, supporting site-level CAPEX and OPEX budgets, and managing project execution, including developing scopes, obtaining proposals, creating purchase requisitions, and ensuring invoices are routed properly. The role is onsite in Plano, Texas, and requires availability for on-call emergency response.

Requirements

• High school diploma or equivalent.
• At least 4–5 years of experience in a data center or related mission-critical operations role.
• Knowledge of data center (hyperscale, enterprise, and colocation) and telecommunications industries.
• Experience with Microsoft Office applications and database software.
• 3–5 years of experience managing facility preventative maintenance programs.
• 3–5 years of experience in vendor and project management.
• Ability to handle multiple tasks and perform well in stressful situations.
• Expert understanding of electrical and mechanical systems used in data centers, such as UPS, transformers, PDUs, RPPs, chillers, CRAH, CRAC, STS, ATS, and pre-action systems.
• Expert knowledge of NFPA70e, NFPA72, NFPA25, and fire life safety compliance standards.
• Experience in data center trending and analysis, with the ability to learn PC-based monitoring systems.
• Proficiency in data center commissioning standards.
• Ability to perform physical tasks including standing, walking, climbing, and lifting up to 25 pounds.
• Willingness to work outside normal business hours, including weekends, holidays, and on-call support.
• Must be eligible to work in the United States.
• Must pass comprehensive background and drug screening.

Responsibilities

• Lead and implement a standardized culture of always working safely across STACK data centers.
• Serve as a data center subject matter expert for electrical, mechanical, fire life safety, and other data center systems.
• Operate, monitor, and maintain facility systems, and respond to abnormal conditions.
• Implement site-level efficiency projects and maintain overall site design PUE.
• Ensure execution of STACK's preventative and predictive maintenance program.
• Train and mentor junior staff, hold regular team meetings, and conduct individual one-on-one sessions.
• Manage vendor relationships and service contracts.
• Assist with vendor procurement and billing processes.
• Support site budgeting and forecasting for capital and operating expenses.
• Manage project execution, including developing scopes, obtaining proposals, creating purchase requisitions, and ensuring invoices are routed properly.
• Create detailed technical procedures for maintenance events, emergency situations, and standard site evolutions.
• Perform expert technical reviews of procedures, company standards, and policies.
• Manage internal and external site audits and ensure compliance.
• Manage systems to avoid unplanned, customer-impacting outages.
• Manage data floor and back-of-house mechanical loading capacity to ensure cooling system efficiency.
• Use CMS, EPMS, and BMS systems.
• Provide day-to-day customer service and support.
• Be available on-call as required to respond to data center emergencies.
• Perform other duties as required by STACK.

Benefits

• Healthcare, dental care, vision insurance, life insurance, paid time off, and paid leave programs.
• 401(k) program.
• Flexible spending accounts.
• Cell phone subsidy.
• Peer-to-peer recognition and rewards programs.
• Company events, game nights, happy hours, and barbecues.
• Competitive compensation package.

What This Job Offers

• Job Type: Full-time
• Career Level: Manager
• Education Level: High school or GED