Software Engineer, Quantum Systems Validation

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:

At PsiQuantum we are developing and testing prototype quantum computer systems with complex software and hardware including integrated photonics optics electronics and cryogenics subsystems. The Quantum Systems Validation team is responsible for characterizing the performance of integrated quantum optical systems and subsystems. As a Software Engineer on this team you will design build and maintain the software tools that enable physicists and engineers to configure test and validate system designs efficiently. You will work closely with validation engineers to write and improve software for acquiring analyzing storing and visualizing data on quantum computer prototypes.

Responsibilities:

• Design and implement software tools that focus on internal user needs and allow for a long-running ever-evolving system.
• Enable physicists and engineers to develop test scripts share data and validate photonic quantum computer systems performance.
• Provide technical leadership including code reviews pair programming and mentoring to promote high-quality well-documented software from contributors from a variety of backgrounds.
• Build robust unit integration and hardware-in-the-loop tests to ensure system stability.
• Collaborate across teams to debug issues provide rapid solutions and contribute to long-term design improvements.
• Partner with design teams to define validation objectives and ensure system designs meet those requirements.
• Write requirements for data APIs and hardware features that will be provided by other teams.

Experience/Qualifications:

• Bachelors 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.
• Demonstrated interest in PsiQuantums mission and vision for quantum computing with an ability to contribute within a fast-paced start-up environment consistent with PsiQuantums values of communication collaboration respect results and challenge.

Ways to stand out

• Experience teaching or mentoring software development skills especially for colleagues with academic or scientific backgrounds.
• Familiarity with quantum physics photonic integrated circuits digital electronics fiber networking or related domains.
• Experience with data visualization tools such as Tableau PowerBI Python Dash or JMP.
• Experience with relational or document-based databases such as: PostgreSQL SQLite Mongo and S3.
• Experience with CI/CD tools such as GitLab GitHub or Jenkins.
• Experience managing Linux servers with tools such as Ansible Bash or Chef.
• Experience with cloud infrastructure management and automation such as: AWS GCP Terraform CloudWatch and Kubernetes.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race color religion sex (including pregnancy childbirth or related medical conditions) gender identity gender expression national origin ancestry citizenship age physical or mental disability military or veteran status marital status domestic partner status sexual orientation genetic information or any other basis protected by applicable laws.

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.