Quantum Applications Software Developer

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:

Responsibilities:

• Lead the design development and deployment of quantum applications software tools to support both internal and external users.
• Maintain service and upgrade a high-quality codebase supported by a fast and reliable simulation infrastructure.
• Work closely with internal and external partners and other members of the quantum applications team to design implement and analyze quantum algorithms for real-world use cases.
• Assist with full system analysis to evaluate and optimize resource requirements for fault tolerant computations.
• Assist with the optimization of quantum algorithms at the subroutine circuit and compiled gate-set level.

Experience/Qualifications:

• Graduate degree in Physics Math or Computer Science or equivalent required (MSc or PhD).
• Practical experience in quantum computing programming quantum applications or quantum circuit compilation.
• 5 years professional experience programming and releasing production code in Python C or similar languages.
• Experience with quantum algorithms or compiling in the regime of fault tolerant gates preferred.
• Experience with deployment of code in distributed environments cloud application development and RESTful API-driven architectures.
• A results-driven doer preferably with experience in a high-throughput rapid-delivery work environment.
• A problem solver with an analytical mindset.
• Proven team player with an ability to work effectively across departments sites and time zones.
• Ability to work independently and contribute in fast-moving start-up environment.

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.