Job Description
Custom Denning is Australia's only locally based, fully electric bus manufacturer and a proud pioneer in sustainable public transport.
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From our Sydney manufacturing facility, we design and build purpose-built electric buses for government fleets, public transport operators and commercial clients across Australia. Combining cutting-edge electric vehicle technology with skilled local manufacturing, we deliver zero-emission transport solutions that meet the highest standards of safety, quality, performance and reliability.
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At Custom Denning, quality is not negotiable. The buses we build transport Australians every day, and we take great pride in delivering products that are safe, dependable and built to last.
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Joining Custom Denning means becoming part of a business that is helping shape the future of clean, Australian-made transport.
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THE OPPORTUNITY
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We're looking for a Mechanical Engineer to join our engineering team and support the design, development and continuous improvement of our bus and coach platforms. This is a hands-on role suited to someone who enjoys working close to the production floor, solving real manufacturing problems, and seeing their designs go from CAD to a finished vehicle. Experience in heavy vehicles, commercial vehicles, automotive or bus/coach manufacturing is highly regarded.
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KEY RESPONSIBILITIES
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Design and develop mechanical components, assemblies and systems for buses/coaches, from concept through to production release
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Produce and review 3D CAD models, drawings and BOMs (SolidWorks, Inventor, Creo or similar)
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Support the production line with engineering input — troubleshooting build issues, running root-cause analysis and implementing corrective actions
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Drive continuous improvement initiatives to reduce build time, cost and rework across the manufacturing process
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Conduct engineering analysis (structural, thermal, fatigue)



to validate designs against ADR and relevant Australian Design Standards
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Prepare and maintain technical documentation, work instructions and engineering change notices (ECNs)
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Liaise with suppliers, fabricators and trades to source components and resolve manufacturing/fit-up issues
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Support prototype builds, testing and validation of new models (including electric drivetrain integration)
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Collaborate with electrical, production and quality teams to ensure designs are manufacturable and compliant
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ABOUT YOU
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You'll bring:
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Bachelor's degree in Mechanical Engineering (or related discipline)
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3–5 years' experience in a mechanical design/engineering role within manufacturing — heavy vehicle, automotive, bus/coach, truck body building, rail or agricultural equipment backgrounds highly regarded
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Strong 3D CAD skills and confidence reading/producing technical drawings to Australian Standards
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Practical, hands-on approach — comfortable on the production floor, not just at a desk
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Understanding of sheet metal fabrication, welding, chassis/structural design or vehicle systems (highly regarded)
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Familiarity with ADRs (Australian Design Rules) or willingness to learn
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Strong problem-solving skills and a continuous improvement mindset
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Good communicator, able to work cross-functionally with production, quality and suppliers
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WHAT WE OFFER
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Competitive salary package reviewed annually.
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A genuinely unique opportunity to work with Australia's only local fully electric bus manufacturer.
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Stable, full time permanent role in a growing, future-focused business.
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Supportive, down-to-earth team culture with a strong safety focus.
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Exposure to cutting-edge electric vehicle manufacturing technology.
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Modern Sydney-based production facility.
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Opportunity to shape and mature the safety and quality framework within a growing Australian manufacturer.
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Direct access to senior leadership and genuine influence on business outcomes.

📌 Mechanical Engineer (New South Wales)
🏢 Custom Bus Australia
📍 New South Wales