Senior Mechanical Designer - Perth, WA, Australia

As a Senior Mechanical Designer you will be working with lead designer in the delivery of mechanical engineering design packages for various mineral mining and processing projects – from underground copper / gold hard rock mining and Lithium / Alumina surface mining through to materials handling facilities and general mineral refinery / processing plant piping. Operating with a high degree of autonomy, you will apply technical expertise across the full project lifecycle; from concept through to detailed design and construction support with minimal supervision.

You will be a key technical contributor within a multidisciplinary consulting team, providing complex mechanical design scope including surface and underground material handling, ventilation systems, fixed plant, processing facilities and associated infrastructure typical of Copper / Gold / Lithium / Alumina mineral and mining environments.

How you'll make a difference:

• Produce detailed mechanical designs, equipment layouts, and engineering drawings using AutoCAD, Microstation, and Advance Steel, ensuring compliance with Australian Standards, client specifications, and applicable mining regulations
• Develop and manage 3D plant models and coordinate discipline clash detection using Navisworks or equivalent federated modelling tools
• Apply a thorough understanding of underground hard rock and/or surface mining systems including ore handling (crushers, conveyor systems, ore passes, winders/hoists), dewatering, ventilation on demand (VOD) systems, processing plant (storage bins, conveyor systems, mills, screens, tanks, pumping and piping), workshops and fixed plant.
• Independently interpret geotechnical, civil, and structural interfaces to produce fully coordinated mechanical designs appropriate for underground environments.
• Liaise directly with project engineers, project managers, and client representatives to manage design deliverables, resolve technical queries, and ensure on-time delivery.

The following qualifications and experience are highly desired, but if you don’t tick all the boxes, you could still be a fit for this role. Please apply, as all applications will be considered.

The qualities that help you thrive

• Minimum 8–12 years of mechanical drafting and design experience, with at least 5 years focused on mining and mineral processing (copper/gold/alumina preferred)
• Diploma or Advanced Diploma in Mechanical Engineering (or equivalent)
• Advanced proficiency in AutoCAD, Microstation, Open Plant Modeler, Advance Steel, and Navisworks experience is essential. Revit and Plant 3D would be highly regarded
• Demonstrated experience producing deliverables across all design stages (Pre-Feasibility, Feasibility, Detailed Design, and Construction)

The Workplace Gender Equality Agency (WGEA) recognises AECOM as taking a sophisticated, holistic approach to supporting women and men’s participation throughout our workplace.

We provide a diverse and inclusive work environment and offer many benefits to ensure your professional development & wellbeing.

• Flexible working options
• Diverse, challenging and exciting multidisciplinary engineering projects
• Paid parental and partner leave
• Purchased additional annual leave + salary packaging
• Wellbeing benefits eg. Vaccinations, health insurance discounts
• Employee stock purchase plans

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

AECOM acknowledges the Traditional Owners and Custodians of the lands on which we, our clients and our communities live and work around Australia. We pay our respects to their cultures and to their Elders — past, present, and emerging. We are committed to connecting to Country in our work through meaningful engagement with First Nations peoples and businesses. Find out more about our Australian Reconciliation Action Plan here: https://aecom.com/au/our-vision-for-reconciliation/.

About AECOM

AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.