Senior Mechanical Design Engineer

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. Psi Quantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint.

By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today's most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more.

Psi Quantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier‑1 semiconductor fabs such as Global Foundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications.

We also benefit from the quantum mechanics reality that photons don't feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity.

In 2024, Psi Quantum announced two government‑funded projects to support the build‑out of our first Quantum Data Centers and utility‑scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing's potential impact and the need to scale this technology to unlock that potential. And we won't just be building the hardware, but also the fault tolerant quantum applications that will provide industry‑transforming results.

Quantum computing is not just an evolution of the decades‑old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us.

There's much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey!

The Senior Mechanical Design Engineer is responsible for designing and qualifying the performance of innovative electro‑optical subsystems, working closely with electronics packaging, systems integration and edge coupling teams.

• Ability to work independently with limited direction, in a team environment across functional and organizational boundaries is required.
• Assist with systems architecture development at the sub‑system level.
• Perform large or complex portions of projects where responsibility includes definition, completion, technical quality, across teams.
• Provide frequent written and oral presentations, status reports, and updates for a variety of audiences.
• Accept constructive feedback from resident experts and coordinate communications between different groups.
• Serve as mentor to younger engineers.
• Distill complex mechanical issues and drive convergence amongst electrical optical & packaging teams.

• Strong mechanical design and analysis skills, expertise in GD&T.
• Generate & maintain BOMs & build standards.
• Generate and maintain process flow documentation.
• Integration of CAD files across multiple teams.
• Fixture design & fabrication.
• Test set‑up design & fabrication.
• Generating & maintaining a Specification Tree.
• Generating & maintaining a Drawing Tree for builds & variants.
• Management of builds through the use of PDM / Arena.
• Tolerance analysis – RSS & worst case.
• DFMEA & risk analysis heat maps.
• Input & maintain workflow documentation in MES.
• Perform simple simulations of structural deflections, stresses.

• Master's Degree in Mechanical Engineering or a relevant discipline.
• Minimum 5 years of experience.
• Preferred – 10 years of experience.
• Working knowledge of DfM and design…