THE COMPANY
STACK INFRASTRUCTURE (STACK) provides digital infrastructure to scale the world’s most innovative companies. We are an award‑winning industry leader in building, owning, and operating highly efficient, cost‑effective wholesale, colocation, and cloud data centers. Each of our national facilities meets or exceeds the highest industry standards in all operational categories of availability, security, connectivity, and physical resilience.

STACK offers the scale and geographic reach that rapidly growing hyperscale and enterprise companies need. The world runs on data. Data runs on STACK.

THE POSITION
STACK is looking for a Critical Operations Technician (COT) to support a local data center campus. As a member of STACK’s Critical Operations team, the Critical Operations Technician must possess robust knowledge in maintaining the mechanical, electrical, fire life safety, base building, and other various internal data center systems. The COT will also be focused on the execution of programs related to Safety, Team, Availability, Communication, and Knowledge. The COT will be responsible for day‑to‑day operations of the data center.

Mechanical responsibilities will include working on chilled water systems and components, HVAC systems such as rooftop units, CRAC/CRAH units, humidification systems, fan wall systems, air‑cooled chillers, and central plant operations.

Electrical responsibilities will include working on electrical/critical power distribution from the Utility/Generator main switchgear through the UPS systems out to the customer load, UPS, PDU, and RPP cabinets.

Fire Life Safety responsibilities will include monitoring wet sprinkler systems and pre‑action sprinkler systems as well as their associated detection devices.

Responsibilities include but are not limited to:

Implement and follow the standardized culture of always working safely across all STACK data centers

Operate, monitor, maintain, and respond to abnormal conditions in facility systems (Electrical, Mechanical, Building Monitoring, and Control)

Track and trend operational characteristics

Provide feedback to management on the effectiveness of existing standards and processes

Work with the Critical Operations Manager to complete an aggressive preventive and predictive maintenance schedule

Assist with the database management of maintenance discrepancies and work with site management to resolve site issues based on priorities





Ensure data center operates at maximum operational efficiency, including analyzing operating conditions, recommending new technologies, and improving overall efficiency

Manage systems to avoid unplanned, customer‑impacting outages

Follow direction regarding the data floor and back‑of‑house mechanical loading capacity to ensure cooling system efficiency

Coordinate and oversee power installations and upgrades

Navigate and utilize a CMMS system

Use developed procedures to solve problems

Assist in asset and consumable inventory management

Track and properly label all equipment per established procedures

Provide day‑to‑day exceptional customer service and support

Incident escalation, response, and follow‑up report writing

Maintain and complete regular facility and security tours documenting and responding to issues

Provide applied mechanical and integrated control expertise for the entire data center

Serve in a technical writing capacity for the derivation of procedures for preventative or corrective maintenance activities

May be required to take on on‑call duties outside of normal working hours

Other duties as required by STACK (job duties, roles, and responsibilities are subject to change over time)

THE DETAILS

Location: San Jose, CA

Travel: None or less than 5%

Benefits: Healthcare, Dental Care, Vision Insurance, Life Insurance, Paid Time Off, Paid Leave Programs

Must be eligible to work in the United States

Must pass a comprehensive background screening

Work hours may vary based upon business needs

MUST-HAVE QUALIFICATIONS

High school diploma or equivalent

Minimum of 3–5 years’ experience in a data center or other related mission‑critical operations role

Experience working with Microsoft Office applications and other database housing software

Ability to handle multiple tasks and perform well in stressful situations

Strong understanding of electrical and mechanical systems used in a data center environment (UPS, Transformers, PDUs, RPPs, Chillers,



CRAH, CRAC, STS, ATS, Pre‑action systems)

Strong knowledge of NFPA70e, NFPA72, NFPA25, and fire life safety compliance standards

Familiarity and experience in data center trending and analysis, with the ability to rapidly learn and use PC‑based site monitoring systems

United States Navy Nuclear Engineering – preferred

Bachelor’s Degree or equivalent work experience – preferred

Occasionally required to stand, walk, sit, use hands to handle, reach or feel objects, climb stairs, balance, stoop or kneel, talk, see at close range, and hear for extended periods of time

Must be able to lift and/or move up to 25 pounds

Willingness to work outside normal business hours, including weekends, late nights, holidays, and on‑call support

Comfortable working in a high‑stress, fast‑paced environment with shifting priorities

Compensation Range
$48.00 - $51.50

THIS MIGHT BE RIGHT FOR YOU IF

You are a strong communicator, you are persuasive and clear, blending analytics with experience in decision‑making.

You do not get flustered easily. You can juggle multiple priorities while balancing urgent requests with shifting timelines and deliverables.

You are a team builder. You take the time to understand and develop the strengths of your resources while formulating long‑term plans for the growth and success of the team.

You are naturally curious and driven toward continual improvement. While you celebrate your successes, you take time to review and analyze campaigns for future learning.

WHY STACK?

We offer a competitive compensation package with strong benefits, including medical, dental, and vision insurance, a 401K program, flexible spending accounts – even a cell phone subsidy.

We foster a culture of appreciation, including peer‑to‑peer recognition and rewards programs.

Fun is part of our DNA, with events, game nights, happy hours, and barbecues.

We’re growing – this is a great time to join and make an impact!

STACK is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity and expression, age, national origin, mental or physical disability, genetic information, veteran status, or any other status protected by federal, state, or local law

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📌 Critical Operations Technician I (Manitoba)
🏢 STACK Infrastructure US
📍 Manitoba