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 Critical Engineering Manager - Electrical is a key leader within STACK’s Critical Operations team, responsible for the safe, reliable and productive operation, maintenance and optimisation of all mission‑critical electrical systems across the campus. The role provides technical leadership, operational governance and vendor/contractor management to ensure all electrical activities are executed to STACK standards and legislative requirements.

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 clear, timely and professional.

Essential Functions

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

Operations

- Lead and embed a safety-first culture across all electrical activities, including live-site risk controls, isolations/LOTO, permit-to-work and method statement compliance.
- Oversee the operation,



maintenance and repair of mission-critical electrical infrastructure supporting 24/7 data centre operations, including HV/LV switchgear, transformers, UPS systems, battery systems, STS/ATS, generators, PDUs and RPPs.
- Set and uphold electrical maintenance standards and schedules; ensure PMs are completed on time, to scope and with quality evidence.
- Review and approve MOPs, SOPs and EOPs for electrical works; ensure risk assessments, hold points and rollback steps are clear and executable.
- Direct and quality-assure testing programs (e.g., functional tests, load transfers, IR/continuity checks, thermography) and address findings with corrective actions.
- Monitor electrical system performance using BMS/EPMS/DCIM and analytics; identify anomalies, trends and early warning signals to prevent incidents.
- Provide technical leadership during incidents affecting electrical systems; support triage, stabilisation, root cause analysis, corrective and preventative actions.
- Plan and coordinate minor/medium works and lifecycle upgrades; ensure change control, outage windows and customer impact mitigation are appropriately managed.
- Validate the accuracy of as-built documentation, single-line diagrams, protection settings and switching procedures.
- Contribute to capacity planning, power quality reviews and optimisation initiatives (e.g., harmonics management, redundancy integrity,



energy efficiency opportunities).

Direct Reports

- Lead, mentor and develop Facilities Engineering personnel to build deep electrical capability and confident execution in live environments.

People

- Foster teamwork and knowledge sharing across electrical, mechanical, controls and operations teams.
- Provide transparent direction, priorities and expectations to internal teams and service partners; ensure disciplined shift handovers for electrical status and risks.
- Present technical and operational updates to customers and leadership with clear, plain-English explanations of risk, impact and remediation.

Contractor & Vendor Management

- Oversee electrical contractors and OEM/service partners to ensure safe, compliant and high-quality delivery aligned to STACK standards.
- Set performance expectations, review service reports, track actions to closure and lead regular service reviews.
- Ensure all vendor personnel are briefed on site rules, risk controls and operational constraints before commencing work.

Governance, Readiness & Continuous Improvement

- Maintain strong document control for procedures, switching sheets, schematics, commissioning records and test results.
- Support operational readiness for new electrical assets/systems (documentation, spares, labelling, CMMS updates, training/tooling).
- Drive continuous improvement initiatives that strengthen safety, reliability, maintainability and efficiency of electrical systems.

Competencies

- Proven leadership in critical engineering environments.
- Strong written and verbal communication skills.
- Strong ability to motivate, develop

📌 Critical Engineering Manager (Melbourne)
🏢 STACK Infrastructure APAC
📍 Melbourne