Principal Mechanical Engineer – Hybrid, Defence & Data

AECOM; Melbourne; Hybrid; AUD 180,000 - 240,000; Full time

Benefits offered by this job

Flexible work

Purchased leave

Public holiday flex

Learning opportunities

Study leave

Global opportunities

Job summary

AECOM in Melbourne is seeking a seasoned Principal Mechanical Engineer to lead high-profile, multidisciplinary projects across defence and data‑centre sectors. You’ll bring technical expertise, commercial awareness and a collaborative approach to deliver complex, impactful solutions.

If you’re ready to shape major projects across Australia and mentor local and national teams while delivering design excellence, we’d love to hear from you.

Qualifications

• 10+ years experience within a Building Services consultancy, or significant senior‑level design experience in Mechanical Services.
• Strong technical design experience across HVAC and mechanical engineering.
• Demonstrated experience delivering projects within the defence and/or data‑centre sectors.
• A strong track record in client management, project delivery and stakeholder engagement.
• The ability to manage competing priorities, communicate effectively and deliver against key project deadlines.
• A Bachelor’s degree in Mechanical Engineering, Building Services Engineering or a related discipline.
• Strong knowledge of Australian building services projects, codes and standards, with the confidence to share your expertise with clients, colleagues and emerging engineers.

Responsibilities

• Lead mechanical design and delivery for major client projects, from concept through to completion.
• Apply your extensive design experience to deliver innovative, practical and cost-effective solutions across projects of varying size, scope and complexity.
• Participate in technical reviews and design assurance, ensuring project deliverables meet the highest standards.
• Work collaboratively within multidisciplinary engineering teams, contributing to interdisciplinary reviews and project outcomes.
• Build strong relationships with clients and stakeholders, helping to drive successful project delivery.
• Mentor and develop junior engineers, sharing your technical knowledge and supporting the growth of our local and national teams.
• Undertake quality control reviews of design calculations, drawings and technical documentation.

Skills

Mechanical design

HVAC design

Client management

Stakeholder engagement

Team mentoring

Education

Bachelor’s degree in Mechanical Engineering

Job description

AECOM in Melbourne is seeking a seasoned Principal Mechanical Engineer to lead high-profile, multidisciplinary projects across defence and data‑centre sectors. You’ll bring technical expertise, commercial awareness and a collaborative approach to deliver complex, impactful solutions.

If you’re ready to shape major projects across Australia and mentor local and national teams while delivering design excellence, we’d love to hear from you.