Company Overview

STACK Infrastructure builds, owns, and operates hyperscale and colocation data centers that power the world’s most ambitious technology companies. With a rapidly expanding footprint across APAC, STACK combines deep development expertise, flexible capital, and operational discipline to deliver critical digital infrastructure at scale.

Our clients include the largest hyperscale cloud platforms. We are building a regional platform defined by speed of delivery, power reliability, and long-term partnership — and we are assembling the team to lead that effort.

Summary/Objective

The Senior Critical Operations Manager is the senior operational leader for the data centre campus, responsible for the day-to-day performance, safety and reliability of all mission-critical operations. Reporting to the Site Director, this role oversees the Critical Operations Manager, Assistant Critical Operations Manager, and the Facilities Management team including the 24/7 workforce to ensure consistent, safe and resilient operation of all critical infrastructure.

The Senior Critical Operations Manager is accountable for driving operational excellence across all shifts, leading incident and risk management, and uplifting and maintaining operational processes, procedures, policies and document control. The role will participate in, and at times lead, operational readiness activities in partnership with the Readiness/Operational Projects function.

This role directly supports STACK’s commitment to 100% uptime and a concierge-level customer service experience , ensuring risk is proactively managed, planned works are executed safely, and customer communications are transparent, timely and professional.





Acting as the Site Director’s primary operational delegate, the Senior Critical Operations Manager provides leadership continuity, clear communication, and consistent execution of operational standards across the site.

Essential Functions

Reasonable accommodations may be made to enable individuals with disabilities to perform these essential functions.

Critical Operations Leadership

- Set the operational tone for the campus and embed a safety-first culture across all shifts, contractors and stakeholders.
- Provide day-to-day leadership to COM, ACOM, FM and 24/7 technical teams to ensure consistent, safe and resilient operations.
- Ensure the 24/7 performance of all mechanical, electrical, fire life safety and control systems to maintain uninterrupted service and meet all SLAs, certifications and legislative requirements.
- Act as the Site Director’s operational delegate when required, ensuring continuity of decision-making, escalation management and customer communication.

Incident, Risk and Change Governance

- Lead incident management and problem management end-to-end, including escalation, risk-based decision-making, customer and executive communications, and the quality of PIR/RCA outputs through to corrective action closure.
- Maintain the site risk register, hazard identification processes and risk review cadence,



ensuring risks are visible, owned and mitigated.
- Govern change control for planned works and live-site interventions, ensuring appropriate outage windows, hold points, rollback strategies and customer approvals.

Maintenance and Planned Works

- Oversee maintenance planning and execution, including review and approval of MOPs, SOPs and EOPs, permit-to-work processes, isolations/LOTO, SWMS and vendor method statements.
- Own scheduling and prioritisation of planned works and minor/medium projects, resolving conflicts across customer commitments, risk and operational constraints.
- Ensure accurate and timely operational reporting on availability, incidents, risks, maintenance compliance, planned works and action tracking.

Contractor and Vendor Management

- Provide governance and quality oversight of contractor and vendor activities, including safety leadership, performance management, service reviews and continuous improvement actions.
- Ensure service partners remain aligned to STACK standards, scope and behaviours, and are held accountable to KPIs and SLAs.

Operational Readiness and Continuous Improvement

- Uplift, implement and maintain operational processes, procedures, policies and document control to drive standardisation, audit readiness and continuous improvement across all shifts.
- Ensure operational readiness requirements are met for new systems, upgrades and transitions (documentation, asset registers, CMMS updates, spares, tooling and training).
- Provide oversight of operational projects impacting live operations, ensuring safe execution, quality outcomes and compliance with operational standards.

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📌 Senior Critical Operations Manager (Melbourne)
🏢 STACK Infrastructure APAC
📍 Melbourne