Mech Design Engineer

11 hours ago

Sydney, New South Wales, Australia The Onset Full time $120,000 - $180,000 per year

Job Description

Do you want to shape how air moves?

Not in theory, not on paper — but on something that could rewire how energy is moved around the planet.

This isn't about tweaking an airfoil in a controlled tunnel. It's about making a system fly that's never flown before. One that has to survive real-world conditions, deliver unprecedented efficiency, and prove itself as a pathway to a cleaner energy future.

The role

  • Take ownership of aerodynamic design for a novel payload on a fixed-wing UAV.

  • Use CFD and flight test feedback loops to squeeze every ounce of efficiency from mass-constrained platforms.

  • Shape airflow around optics and hardware that don't naturally want to fly, and make them perform.

  • Handle thermal considerations along the way, but always with aero performance front and centre.

  • Work in lockstep with electronics, systems, and embedded engineers to take concepts from CAD to flight-ready hardware.

Why this matters

  • You'll be contributing to a technology that, if it scales, changes how energy is transmitted globally.

  • The aero is make-or-break: without your design, the system doesn't get off the ground — literally.

  • It's a greenfield challenge with direct impact: your design choices will dictate whether the demo platform becomes a breakthrough.

What you'll need to show

  • Mechanical/Aerospace background with deep aero instincts for fixed-wing aircraft.

  • Strength in CFD (Fluent, OpenFOAM or similar) and the judgement to know when low-order models get you there faster.

  • Experience tying simulations to actual flight data.

  • CAD and prototyping skills to prove out aero solutions in hardware.

  • Thermal awareness is useful, but aero is the star of the show here.

If you've got ~4–10 years in aero R&D and you want true end-to-end ownership, this is the place.

Curious? Email Thaís at If your CV isn't ready, drop me a message and we'll build it together. 

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