Senior -Speed Photonics 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!

Job Summary:

Psi Quantum is seeking a Sr. Active Photonics R&D Engineer to help develop active components and circuits for the world’s first fault‑tolerant quantum computer.

The candidate will independently own the design, modeling, testing, and data analysis of active photonic devices and circuits. The Photonics Engineer will collaborate closely with teams across Psi Quantum—including electronics, manufacturing, test, packaging, and system validation—to achieve these goals. A successful candidate is expected to have hands‑on experience and knowledge in active photonic technologies such as electro‑optic phase shifters, switches, modulators, and related components.

Responsibilities:

• Design, simulate, and optimize novel integrated photonic devices and photonic integrated circuits for quantum computing.
• Take a leading role in photonic tapeouts, including hands‑on layout, DOE and circuit design, planning, and interfacing with stakeholders (e.g., packaging teams or electronic driver designers).
• Collaborate with our dedicated test team to
  • Plan and execute automated high‑volume tests
  • Develop new test methods when needed
• Work with assembly test engineers to help plan and execute assembly‑level characterization.
• Analyze measurement data and interpret analysis results to understand and improve components and circuits.
• Develop and implement new analysis methods as necessary.
• Collaborate with photonic engineers, test engineers, materials scientists, electronic engineers, process engineers, and packaging engineers to build and characterize high‑performance photonic chips and assemblies.
• Mentor junior staff members

Experience/

Qualifications:

• MS or PhD in electrical engineering, applied physics, optical engineering, or related discipline.
• Minimum 3 years of industrial…