Principal Mechanical Engineer – Building Services

Overview

In this role you will lead mechanical design for high-profile, multidisciplinary projects in defence and data-centre sectors. You’ll work within the Buildings & Places team to shape solutions from concept to completion, collaborating with engineers and clients to deliver practical, cost-effective outcomes. You will mentor junior staff and uphold design quality across complex deliveries, contributing to a global firm that champions impact, equity, and innovation. This is an opportunity to influence major Australian projects and advance your leadership in a renowned engineering practice.

Pay / Benefits

• Hybrid work options
• Flexible working arrangements
• Up to 6 weeks additional annual leave
• Flex public holidays
• Professional development and study leave
• Global career opportunities

Responsibilities

• Lead mechanical design and delivery for major client projects from concept to completion
• Deliver innovative, practical, and cost-effective HVAC/mechanical solutions across varied project scopes
• Participate in technical reviews and design assurance to meet high standards
• Collaborate within multidisciplinary engineering teams and support interdisciplinary reviews
• Build strong client and stakeholder relationships to drive project success
• Mentor and develop junior engineers to grow local and national teams
• Perform quality control reviews of design calculations, drawings, and technical documentation

Key requirements

• 10+ years ofexperience in Building Services consultancy or senior-level mechanical design
• Strong technical design experience across HVAC and mechanical engineering
• Proven delivery of defence and/or data-centre sector projects
• Strong track record in client management, project delivery and stakeholder engagement
• Ability to manage competing priorities, communicate effectively, and meet deadlines
• Bachelor’s degree in Mechanical Engineering, Building Services Engineering or related discipline
• Strong knowledge of Australian building services codes and standards
• Australian citizenship; defence security clearance considered highly advantageous

• Client-focused
• Collaborative mindset
• Effective communication
• HVAC design
• Mechanical services design
• Design reviews and design assurance

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