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 deplo…
Senior Director, Finance Business Partner – Optical Circuit Switch (OCS)
Palo Alto, California, United States · On-site
$168k–$282k/yr
Senior+$2.5B raised
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$89k–$149k/yr
Full-time
postgraduate degree
Equity
Posted 11d ago
~40 hrs/week
Responsibilities
The engineer will design and execute experiments to characterize integrated photonic circuits for quantum computing platforms. They will also develop automated experimental control systems and collaborate with design teams to troubleshoot device performance.
Requirements
Candidates must hold a PhD in Photonics, Physics, Electrical Engineering, or a related field. Strong hands-on experience in integrated optics characterization and proficiency in Python for automation are required.
Full job description
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:
PsiQuantum is seeking an Integrated Photonics Engineer to support the characterization and validation of advanced photonic circuits underpinning our quantum computing platform.
In this role, you will design and execute experiments to test complex optical circuits, working closely with circuit designers and system engineers. You will play a key role in developing automated experimental workflows and advancing our understanding of integrated photonic devices.
Responsibilities:
Design and execute experiments to characterize integrated photonic circuits across multiple optical wavelengths.
Test and analyze devices incorporating components such as directional couplers, interferometers, and EO modulators.
Develop automated experimental control and data acquisition systems (Python preferred).
Characterize complex integrated optics-based circuits and interpret experimental results.
Collaborate with design teams to troubleshoot device performance and improve future iterations.
Generate detailed reports and documentation for experimental procedures and results.
Contribute to the development of scalable testing methodologies for large-scale photonic systems.
Experience/Qualifications:
PhD in Photonics, Physics, Electrical Engineering, or a related field.
Strong experimental background in integrated optics and photonic circuit characterization.
Hands-on experience with key components such as directional couplers, interferometers (MZI/AMZI), and phase shifters.
Proficiency in Python for experiment automation and data analysis.
Experience working with complex optical measurement setups.
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.
The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located.Actual compensation may vary outside of these ranges 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.
Building the world’s first useful quantum computers.
Industry
Computer Hardware Manufacturing
Company size
501-1,000 employees
Founded
2015
Headquarters
Palo Alto, California
LinkedIn followers
88,627
Total funding
$2.5B
Quantum computing will be a world-changing technology with the potential to unlock powerful advances in medicine, energy, finance and beyond. At PsiQuantum, we’re focused on building the world’s first useful quantum computer.
A useful quantum computer requires at least 1,000,000 qubits and error correction. We believe photonics is the only path to building a useful quantum computer.
Our team at PsiQuantum is a mix of quantum physicists, semiconductor, systems, and software engineers, system architects and more. Error correction is at the centre of everything we do; and we focus on solving real-world problems.
If you’re interested in joining our team, we are always open to hearing from exceptional people interested in working on one of the defining technologies of our lifetime.
Offices: 700 Hansen Way, Palo Alto, California 94304, US
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