Software Engineer, Systems Modelling

Psi Quantum'smission is to build the first useful quantum computers-machines 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 industry-including partners like Global Foundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don'tfeel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.

In 2024,Psi Quantum announced 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 defining-and that now is the time to scale.

Psi Quantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact.

Quantum computing is not an extension of classical computing. Itrepresentsa fundamental shift-and 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.

At Psi Quantum we are developing and testing prototype modules which will scale into a datacenter-sized, fault-tolerant quantum computer. Modules, or subsystems, of this computer are designed to generate entangled states of photons that, when scaled up and networked together, collectively enable quantum error correction and quantum algorithms. The Quantum Systems Validation team is developing and maintaining a set of physical models to represent, characterize, and analyze the performance of our quantum modules.

The Software Engineer, Validation Models will be responsible for building and maintaining software infrastructure that enables the team to capture and analyze system performance data. The successful candidate will work closely with validation engineers to create tools that manage data, create abstractions for system hardware, and interface those to physical modelling tools.

• Design and implement software tools that enable physics model development.
• Design and implement interfaces between databases and modelling tools to make it easy to apply models to high-volume data captured on large scale tests.
• Contribute to developing user interfaces and data visualization tools.
• Contribute to code reviews, pair programming, and mentoring, to promote high-quality, well-documented software from contributors from a variety of backgrounds.
• Work with validation engineers to develop and maintain hardware abstractions in software.
• Develop software tools to manage data interfaces between databases and modelling tools.

• Bachelor's degree in computer science, mathematics, physics, engineering, or a related field.
• Advanced knowledge of Python including libraries for data analysis, unit testing, and Web APIs.
• Extensive experience using Git for version control in a collaborative software environment.
• Ability to work independently with limited direction and manage responsibility and ownership for delivering validation objectives.
• Excellent verbal and written communication skills with an ability to communicate effectively to a variety of audiences including senior leadership and technical experts in different domains.
• Demonstrated interest in Psi Quantum's mission and…