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, adaptable 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 Principal Engineer – HV Infrastructure is the senior technical engineering role within STACK’s Power & Energy function responsible for the technical integrity, engineering governance and design assurance of STACK’s upstream high-voltage infrastructure.

The role provides technical leadership across the development and delivery of transmission and distribution connections, HV substations, transformers, switchgear, HV cables/lines, protection and control systems, contestable assets, BESS and associated infrastructure.

The Principal Engineer will act as STACK’s owner’s engineer and HV technical authority, establishing engineering requirements, reviewing and challenging EPC designs, managing specialist engineering consultants and ensuring delivered infrastructure meets STACK, NSP, regulatory, safety, reliability and operational requirements.

The role works closely with the Grid Connection Manager, Senior Project Managers, Engineering, Operations, NSPs, EPC contractors and OEMs throughout the asset lifecycle.

HV Engineering & Technical Authority





- Provide technical leadership and engineering governance for STACK’s HV infrastructure portfolio.

- Establish and maintain HV engineering requirements, design criteria, technical specifications and standard solutions.

- Lead development and technical review of substation architecture, transformers, switchgear, HV cables/lines, protection and control, SCADA, metering, earthing and associated systems.

- Ensure engineering solutions appropriately address reliability, redundancy, maintainability, safety, operability and future expansion.

- Provide technical recommendations and resolve complex engineering issues throughout project development and delivery.

Design Assurance & EPC Engineering Management

- Act as STACK’s owner’s engineer for HV infrastructure delivered through ECI/EPC arrangements.

- Review and approve contractor design deliverables against STACK requirements and applicable standards.

- Lead technical reviews, design workshops, HAZID/design-risk reviews and engineering hold points.

- Challenge EPC and consultant proposals where appropriate to optimise technical performance, constructability, reliability and lifecycle outcomes.

- Manage specialist engineering consultants where additional technical expertise is required.





- Maintain technical configuration and design-change control through project delivery.

Grid Connection & Power-System Interface

- Work closely with the Grid Connection Manager to ensure connection requirements, CPS, GPS and grid-study outcomes are incorporated into HV infrastructure design.

- Provide HV plant data, equipment characteristics and design inputs required for power-system studies and modelling.

- Support technical assessment of fault levels, harmonics, reactive power, system strength, protection and other grid-facing requirements.

- Ensure changes to HV equipment or architecture are assessed for potential impacts on connection studies and compliance.

- Support resolution of technical matters with NSPs, AEMO, consultants and OEMs where they relate to HV infrastructure.

Delivery, Commissioning & Operational Readiness

- Provide engineering support to Senior Project Managers throughout procurement, construction, testing and commissioning.

- Lead technical evaluation of major HV equipment and OEM submissions.

- Participate in FATs, SATs, protection testing, commissioning and technical acceptance activities as required.

- Provide technical assurance that installed assets comply with approved design and performance requirements.

- Work with DC Operations to ensure maintainability, operating philosophy, asset information, spares and technical requirements are incorporated before handover.

- Support investigation and resolution of technical issues during commissioning and early operation.

Engineering Governance & Continuous Improvement

- Maintain appropriate technical standards, design records, specificat

📌 Principal Engineer – HV Infrastructure (Melbourne)
🏢 Stack Infrastructure
📍 Melbourne