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Circuit Design Engineer



Palo Alto, CA, USA
Posted on Friday, June 14, 2024

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 Circuits team sits at the interface of system architecture and hardware development. We are looking for a circuit design/software engineer to join the team. This is an individual contributor role involving close collaboration with all of PsiQuantum’s technical teams. It focuses on developing and using software tools to design, model, and characterize photonic circuits, with particular focus on photonic switching networks.


  • Work closely with photonics, electronics, and test engineers on data-driven circuit design and analysis, focusing on photonic switching networks.
  • Develop software functionality for our in-house photonic circuit design tools.
  • Evaluate the feasibility of circuit design concepts.
  • Extract predictive models, perform data analysis, and run design checks on photonic circuits.



  • Master/PhD or equivalent in EE, Physics, Computer Science or related fields.
  • Experience with photonic circuit design and GDS layout.
  • Experience programming in Python.
  • Ability to work across domains and collaborate effectively with multi-disciplinary technical teams.


  • Familiarity with git workflows and CI/CD pipelines.
  • 2+ years professional experience programming and releasing production code for web applications.
  • Experience with Javascript/Typescript.
  • Working knowledge of quantum computing/quantum mechanics.


  • Background in analogue electrical circuit design.
  • Familiarity with modern front-end tools e.g. React, Svelte, and/or Vue.

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 pay range is:

Pay Range
$143,000$175,000 USD