Hardware Design Engineer



Software Engineering, Other Engineering, Design
Palo Alto, CA, USA
Posted on Saturday, May 25, 2024

PsiQuantum is on a mission to build the world’s first fault tolerant quantum computer capable of tackling today’s most intractable computational challenges to deliver transformative results. We know that means it will need roughly 1 million qubits and will be building scale in size.

Quantum computing is expected to deliver breakthroughs for today’s still impossible computational tasks. By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over even the most powerful of today’s conventional supercomputers offering the potential for extraordinary advances across a broad range of applications 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. Our architecture is based on photonics which gives us the ability to produce our components using high-volume semiconductor manufacturing processes, the same processes that have been applied in telecommunications and data center applications for decades. Since photons don’t feel heat, we can take advantage of existing cryogenic cooling systems, the kind that have been operating at facilities like Stanford Linear Accelerator (SLAC) since 2018. And because photons are basically light, they can move between subsystems using standard fiber connectivity, without the need for transduction in and out.

Our team is working across the full stack of quantum computing, from quantum architecture to photonic chip manufacturing, advanced opto-electronic packaging, hardware systems design, quantum algorithms and software tools, and cryogenic cooling. We’re a highly motivated and collaborative group focused on a singular goal - building the world’s first Fault Tolerant Quantum Computer on the fastest path possible.

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

Job Summary:

The mission of PsiQuantum's Principal Hardware Design Engineer role is to support the Electronics team by owning hardware designs integral to the underlying system of the quantum computer. This engineer will collaborate in cross-functional teams of thermal, mechanical, firmware, optical engineers. The designs will meet the requirements of the overall system architecture and physical framework of the quantum computer.


  • Design, create schematics, and oversee PCB layout of analog and digital circuitry consisting of but not limited to high-speed transceivers, 10+ Gbps electrical and optical data links, FPGA's, microcontrollers, clock distribution, and power distribution.
  • Ensure signal integrity and EMI suppression is accounted for in all designs.
  • Design and create test set-ups for testing of electro-optic modules.
  • Characterize, optimize, and debug analog, digital, and electro-optic circuitry using equipment such as mixed signal & sampling oscilloscopes, vector network analyzers, signal generators, multimeters, DC power supplies.
  • Develop software to drive measurements.
  • Analyze data and extract key performance parameters.
  • Maintain detailed documentation of hardware designs, test results, and design changes.


  • Master's or Ph.D. Degree or above in Electrical Engineering, Physics or equivalent.
  • 10 years of relevant experience in product development and release to volume manufacturing leading to a successful commercial product.
  • Qualities:
    • Results oriented.
    • Delivers on commits.
    • Attention to detail.
    • Data-driven in decision-making.
    • Strong problem-solving skills.
    • Proven team player with an ability to work effectively across departments, sites, time zones in direct and matrix team environments.
    • Excellent verbal and written communication skills with an ability to communicate effectively to a variety of audiences ranging from senior leadership and technical experts to entry-level staff.
  • Software Tools:
    • Altium Schematic Capture and PCB Layout
    • C++, Python, RTL (VHDL or Verilog)
    • Keysight PathWave ADS
    • Microsoft Office.

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.