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R&D Engineer (Superconducting Photon Detector Design) - PsiQuantum

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Job Title
R&D Engineer (Superconducting Photon Detector Design)
Job Location
Palo Alto, California, United States
Job Description

We believe quantum computing will change everything.  It will have the power to transform the foundations of giant industries that rely on intensive computation.  PsiQuantum is on a mission to build the world’s first useful quantum computer, capable of delivering these transformative results.  We know that means it will need 1 million qubits, error correction, a scalable architecture and a data center footprint.

By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today’s most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more. 

PsiQuantum is uniquely positioned to deliver on the promise of quantum computing years earlier than our competitors. Our architecture is based on photonics which gives us the ability to produce our components using existing high-volume semiconductor manufacturing processes, the same processes that are today producing billions of chips for telecom and consumer electronics applications. Since photons don’t feel heat, we can take advantage of existing cryogenic cooling systems, the kind that have been operating at facilities like the Stanford Linear Accelerator (SLAC).  And because photons are in fact light, they can move between subsystems at tremendous speed using standard fiber connectivity.

Our team is building a utility scale quantum computer and the software tools needed to build fault tolerant quantum applications. We’re a highly motivated and collaborative group focused on a singular goal - building the world’s first useful quantum computer on the fastest path possible. 

There’s much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey! 

Job Summary:

The role of the detector design team is to design fast and efficient photon-number-resolving detectors. The detector's performance depends on the design, materials, and electrical readout and control. The team is responsible for designing that detector and ensuring its success by co-developing the materials, process, and electronics needed to deliver high performance. We work in fast learning cycles of design -> fabrication -> testing -> analysis -> next design.

The successful candidate will lead parts of this development.


  • Perform data analysis and develop data analysis algorithms.
  • Development of physics-based and electronic predictive models of the detectors.
  • Drive superconducting model-experimental closure by mapping superconducting model and simulation results to experimental data.
  • Superconducting detectors design.
  • Collaborate with experimental, design, process, photonics, and systems teams to understand the design and system-level constraints.
  • Continuous survey of literature on superconducting detectors.


  • A PhD in Physics or Electrical Engineering.
  • 2+ years of hands-on experience with superconducting devices.
  • Computer programming experience, Python preferred.
  • Office tools.

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.

We are not accepting unsolicited resumes from employment agencies.

The range below reflects the minimum and maximum target range for new hire base salary across all US locations. Actual compensation may vary outside of this range and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future.

For a fully qualified candidate, the expected base pay range is: 

Base Pay Range
$143,000$175,500 USD

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PsiQuantum Headquarters Location

Palo Alto, CA

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PsiQuantum Company Size

Between 200 - 500 employees

PsiQuantum Founded Year


PsiQuantum Total Amount Raised


PsiQuantum Funding Rounds

View funding details
  • Series D

    $495,000,000 USD

  • Series C

    $150,000,000 USD

  • Series B

    $50,000,000 USD

  • Series A

    $13,500,000 USD

PsiQuantum's Investors

PsiQuantum's Tech Stack