System Calibration Engineer

PsiQuantum’s mission 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 approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—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’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum 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. 

PsiQuantum 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. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary: 

At PsiQuantum, we are developing and testing prototype modules that will scale into a datacenter-sized, fault-tolerant quantum computer. Once integrated into the full system, these modules and sub-systems must be regularly calibrated to ensure the reliable production of single photons and entangled states — the foundation of our quantum computing architecture. 

The System Calibration Engineer will analyze the performance of calibration procedures and oversee their implementation in our control software. This role involves close collaboration with diverse engineering teams and a broad range of technologies, including RF electronics, active photonics, lasers, cryostats, analog mixed-signal hardware, embedded systems, complex data acquisition platforms, and quantum modules. 

Example projects include calibrating passive and active photonic components, synchronizing optical and electro-optical devices, and optimizing the sequencing and logistics of large-scale system bring-up across thousands of devices. 

Responsibilities: 

• Analyze calibration procedures to quantify and minimize the effects of errors, noise, and timing overheads, optimizing calibration performance and system stability. 

• Develop prototype software for implementing calibration procedures, including compact models that capture system behavior for planning purposes. 

• Integrate calibration procedures into our calibration routine workflows, ensuring reliability and scalability. 

• Contribute to the development of system-level calibrations of our photonic system that must work reliably across thousands of optical and electro-optical devices. 

• Define and implement metrics to monitor system health and calibration performance. 

• Work closely with software engineers to implement production-quality calibration functions and routines. 

• Support the aggregation and organization of documentation required to calibrate the system from across the company. 

• Collaborate with validation teams to test, debug, and validate calibration procedures and routines. 

Experience/Qualifications: 

• M.S. or PhD in Electrical Engineering, Optical Engineering, Physics, or a related discipline. 

• Proven ability to independently contribute to complex systems integrating optical electronic, and control software components. 

Demonstrated experience with some of the following: 

• Active photonics, RF engineering, hardware design 

• Optics, lasers, quantum computation, experimental control software 

• Experience with embedded systems, firmware, RTL, or signal processing is desired, but not required. 

• Extensive experience developing data analysis and experimental control software in python or a similar scripting language. 

• Experience modelling communication or data acquisition systems to optimize system performance. 

• Proven ability to collaborate effectively across disciplines, departments, and time zones. 

• Experience documenting projects, processes, or hardware designs. 

• 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 PsiQuantum’s mission and vision for quantum computing, with an ability to contribute within a fast-paced start-up environment consistent with PsiQuantum’s values of communication, collaboration, respect, results, and challenge.
  
  

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 [email protected].

We are not accepting unsolicited resumes from employment agencies.