Superconducting Analog Component Designer

About Xanadu:
Xanadus mission is to build quantum computers that are useful and available to people everywhere.

At Xanadu we are learners innovators researchers collaborators and problem solvers. We are creating something that has never been built before. Few people in their life will be able to be a part of something like this where if we are successful the technologies we develop will solve some of the worlds most challenging problems and literally change the world. And that is something to be excited about!

Your role and responsibilities:

In this role you will contribute your expertise in superconductors and analog components to advance our cutting-edge Superconducting Nanowire Single Photon Detectors (SNSPDs) required for our quantum architecture. This will involve challenging the state-of-the-art with novel approaches to make world-leading devices. As a member of the Low Temperature Devices Team your primary responsibility will be the development of record-breaking photon-number-resolving detectors with ultra-high system detection efficiency short reset times and scalability to large-scale deployment.

With your deep technical expertise and experience in superconducting component and circuit design you will play a critical role in designing and enhancing the performance and scalability of our SNSPD platform. This role requires significant experience with on-chip superconductor design as well as the ability to work effectively across disciplines in a fast-paced environment to integrate into for large-scale quantum system designs.

You will take full ownership of their development from concept through validation and deployment within large-scale detector arrays.

Design and optimize superconducting analog components and circuits (e.g. inductors transmission lines and detector interfaces) for integration into SNSPD-based systems

Contribute to circuit architectures enabling scalable multiplexing and readout of large-scale SNSPD arrays and on-chip integration.

Drive improvements in key SNSPD performance metrics (e.g. system detection efficiency reset time yield and scalability) relevant to Xanadus system architecture

Translate device designs into tapeout-ready GDS layouts for fabrication with external foundries

Support cryogenic validation of device and circuit performance including analysis of measurement data to inform design iterations

Collaborate with internal and external process integration engineers packaging engineers and technicians including at Xanadus foundry partners

Basic qualifications and experience:

PhD in Physics Electrical/Mechanical Engineering or a closely related field with at least 2 years of postdoctoral or industry experience

Circuit design and simulation using SPICE models including relevant parasitic components

Strong understanding of superconducting device physics and single-photon detection mechanisms

Familiarity with standard fabrication techniques and their influences on design Experience using Python for component design simulation GDS layout and data analysis

Ability to work independently and collaboratively in a fast-paced cross-disciplinary environment

Strong attention to detail and a rigorous data-driven approach to problem solving Excellent written and verbal communication skills

Preferred qualifications and experience:

Simulation experience for device-level modeling (e.g. COMSOL pyTDGL) Deep proficiency with superconducting theory including TDGL

Proficient writing Python code

Familiarity with statistical process control and yield optimization in fabrication workflows

Experience with large-scale detector arrays or multiplexed readout architectures

This is for a new position. Your base salary will be determined based on your location experience and internal benchmarks. The base salary range is 150000 - 200000 CAD. You will also be eligible for equity and benefits.

Our values are important. They are fundamental and lay the foundation for culture at Xanadu. Learn more about our values here.

We are an equal opportunity employer and encourage candidates of all backgrounds to apply. We are committed to building an inclusive safe and equitable culture and fostering an environment where our employees feel included valued and heard. We are committed to meeting the needs of all individuals and support a barrier-free workplace. Should you require accommodations at any point during the recruitment process please contact Recruiting at .

Please be advised that we may use artificial intelligence (AI) tools to assist in the screening and assessment of applicants for this position. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.