Sr Digital System Designer

PsiQuantumsmission is to build the first useful quantum computersmachines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016 our singular focus has been to build and deploy million-qubit fault-tolerant quantum systems.

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy pharmaceuticals finance agriculture transportation materials and other foundational industries.

Our architecture and approachisbased on silicon photonics. Byleveragingthe advanced semiconductor manufacturing industryincluding partners like GlobalFoundrieswe use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photonsdontfeel heat are immune to electromagnetic interference and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.

In 2024PsiQuantumannounced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane Australia and Chicago Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically definingand that now is the time to scale.

PsiQuantumalso develops the algorithms and software needed to make these systems commercially valuable. Our application software and industry teams work directly with leading Fortune 500 companiesincluding Lockheed Martin Mercedes-Benz Boehringer Ingelheim and Mitsubishi Chemicalto prepare quantum solutions for real-world impact.

Quantum computing is not an extension of classical computing. Itrepresentsa fundamental shiftand a path to mastering challenges that cannot besolvedany other way. The potential is enormous and we have a clearpathto make it real.

Come join us.

Job Summary:

We are looking for a digital-hardware system-designer to join our System-Architecture team. You will work in a multi-technology environment and will contribute to shaping and defining the digital-logic systems which drive our photonic quantum computer.

Responsibilities:

• Gather and translate high-level abstract requirements into concrete hardware requirements.
• Devise and implement low-latency algorithms and methods to solve various time-critical tasks that take place in the data-plane of an optical quantum computer.
• Work with other digital-design experts to integrate algorithms into FPGAs.
• Collaborate closely with physicists and digital designers to arbitrate design choices and optimize designs to meet algorithmic performance while matching latency throughput and footprint constraints.
• Write requirements and documentation.
• Implement cycle-accurate Python models to be integrated in discrete-time-event simulations.
• Implement SystemVerilog implementations matching Python models.
• Write behavioral tests for implementations in Python.

Experience/Qualifications:

• Bachelors or masters degree in Electrical or Computer Engineering or related discipline.
• 5 years of relevant work in digital design.
• Knowledge of SystemVerilog (or VHDL) for design and simulation.
• Experience working with FPGAs (Xilinx preferred) and associated tooling.
• Strong critical thinking skills to devise creative and analytical approaches to solving novel loosely-defined complex problems.
• Team player with an ability to work effectively across departments and time-zones.
• Excellent verbal and written communication skills with the ability to engage a variety of audiences.
• Experienced Python programmer who strives to write clear code in the context of a small team of contributors.
• Pro-active with the ability to work independently with limited direction in a fast-moving start-up environment nice-to-have:
• Distributed system experience: involving event correlation from multiple sources under real-time constraints.
• Experience with High Level Synthesis tools (e.g. Xilinx Vitis).
• Experience with Python for verification (Cocotb).
• Knowledge of photonics and linear optics is a plus.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to .

We are not accepting unsolicited resumes from employment agencies.