Senior Subsystem Validation 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 Subsystem Validation Engineer will be responsible for developing and implementing the methods and techniques to validate and enhance the performance of various electro‑optical subsystems.

• Review of Sub‑system design including integration of optics, electronics, firmware, software and thermal design.
• Designing and building laboratory setups comprised of light sources, detector, switches; function generators, oscilloscopes, etc.
• Developing software scripts for data collection and data analysis.
• Developing software scripts and algorithms to perform data analysis and extract key performance parameters.
• Design and run experiment to validate design functionality of subsystems.
• Writing validation plan for the characterization of new sub‑system designs.

• Bachelor's degree in engineering or physical science with 6+ years of industry experience.
• At least 5 years of experience validating and testing optical systems.
• Experience working with optical and/or electrical test equipment such as power meters, optical back scatter reflectometers (O ), optical spectrum analyzer (OSA), oscilloscopes, function generators (AWG), vector network analyzer (VNA).
• Experience with high‑speed electro‑optical devices and test equipment, such as electro‑optical modulator, RF detector, pulsed lasers, optical sampling oscilloscope.
• Experience developing test methods and optimization, tuning/calibration algorithms.
• Ability to understand and write scripts to communicate and control instruments.
• Experience with Python is preferred.
• Familiarity with programming CPUs to interface with FPGA's is a plus.

Psi Quantum provides equal employment opportunity for all applicants and employees. Psi Quantum does not unlawfully discriminate on…