Senior Mechanical Engineer – Solutions Engineering

STACK INFRASTRUCTURE (STACK) is an award-winning industry leader in building, owning, and operating highly efficient, cost-effective wholesale, colocation, and cloud data centers. We provide digital infrastructure that enables the world’s most innovative companies to scale, with facilities that meet or exceed the highest industry standards for availability, security, connectivity, and physical resilience.

As a well-established data center business across APAC, the Americas, and Europe, STACK has successfully built several data centers in Melbourne and continues to expand its project portfolio with the goal of becoming a market leader in the hyperscale data center market.

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 Summary:

The Senior Mechanical Engineer – Solutions Engineering is responsible for developing high-quality mechanical engineering solutions for data centre projects, from early customer discussions and concept design through detailed design, construction and operational support. The role provides technical input to sales opportunities, develops initial PUE assessments, manages consultants and vendors, and reviews designs to ensure they are compliant, cost-effective, buildable and aligned with STACK’s Basis of Design and customer requirements. The role also supports research and development, resolves operational issues and mentors junior engineers.

Key Responsibilities:

Drive technical input and information for customer sales requirements.

Develop concept designs for early customer discussions and consultant briefing.

Develop initial PUE assessment to support site selection and test-fits.

Develop long lead equipment technical documentation and review vendor proposals.

Drive updates to internal BOD drawings and schematics.





Steer consultants using technical expertise in weekly activities to achieve design outcomes.

Working with consultants to ensure deliverables are compliant with customer requirements, technically correct, high quality, on time and buildable.

Review consultant designs against STACK BOD and customer requirements.

Reduce construction cost by identifying and removing over-engineering or conservatism.

Support construction activities via review and approval of workshop drawings.

Support the research and development activities to drive STACK’s next generation design solutions.

Support and mentor graduate and junior engineers helping develop STACK's future capabilities.

Provide technical input to operational issues to help identify root causes and potential solutions.

Must have Experience

Minimum 7 years of relevant mechanical engineering experience, including concept design, detailed design and construction support for complex infrastructure projects.

Strong knowledge of data centre or mission-critical cooling systems, including chillers, cooling towers, CRAH/CRAC units, pumps, ventilation and control systems.

Experience developing concept designs, equipment specifications, PUE assessments, technical documentation and Basis of Design drawings.

Proven experience managing engineering consultants and reviewing designs for technical accuracy, compliance, constructability, quality and customer requirements.

Experience identifying value-engineering opportunities to reduce construction costs,



remove over-engineering and improve design efficiency.

Good to have experience

Experience reviewing long-lead equipment proposals, workshop drawings and vendor technical submissions.

Knowledge of energy-effective cooling solutions, heat rejection systems, water usage optimisation and sustainable data centre design.

Experience supporting research and development of modular, standardised or next-generation mechanical solutions.

Experience mentoring graduate and junior engineers and providing technical input into operational incidents and root-cause investigations.

Equal Opportunity Employer

STACK provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

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

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Your application will include the following questions:

- Which of the following statements best describes your right to work in Australia?
- How many years' experience do you have as a mechanical engineer?
- Have you worked in a role where you were responsible for authoring and reviewing technical documentation?
- What's your expected annual base salary?
- How much notice are you required to give your current employer?

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📌 Senior Mechanical Engineer – Solutions Engineering (Williamstown)
🏢 @
📍 Williamstown