Senior Scientist-SNSPDs

Skip To Job Description Senior Scientist-SNSPDs Toronto, ON, Canada Full Time Hardware Experienced Share About Xanadu:At Xanadu, we are learners, innovators, researchers, collaborators, and problem solvers. We are creating something that has never been built before. What we are doing is extremely hard, the classic moon shot. 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 world’s 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 optics and photonics, cryogenics, to advance the performance of our Superconducting Nanowire Single Photon Detectors (SNSPDs). As a member of the Low Temperature Devices Team, your primary responsibility will be the development of record breaking single photon detectors with ultrahigh system detection efficiency, short reset time and compact deployment.With your deep technical expertise and experience in SNSPD system development, you will play a critical role in designing and enhancing the performance and scalability of our SNSPD platform. This role requires significant experience with SNSPDs (both in design and characterization), cryogenic systems, and photonic hardware, as well as the ability to work effectively across disciplines in a fast-paced environment.You will design, assemble, and evaluate SNSPDs. You will take full ownership of their development, from concept through validation and deployment within large-scale detector arrays. Responsibilities include:Challenge the state-of-the-art in key SNSPD performance metrics relevant to Xanadu’s ArchitectureIndependently operate cryogenic systems (e.g. He-4 evaporator based, dilution refrigerators), including cooldowns, troubleshooting, and maintenanceCollaborate with internal and external process integration engineers, packaging engineers and technicians, including at Xanadu’s foundry partnersDevelopment of novel high-bandwidth, low latency RF electronics readout systems Perform cryostat-based iterative testing to validate coupling performance, repeatability and stability Required qualifications and experience:PhD in Physics, Electrical/Mechanical Engineering, or a closely related field, with at least 2 years of postdoctoral or industry experienceProven track record designing, improving and characterizing SNSPDsExperience with high-bandwidth RF readout electronicsExtensive hands-on experience operating cryostats, including cooldowns, troubleshooting, and maintenanceSelf-motivated, comfortable working both independently and collaboratively with people of all disciplines on complex projects in a fast-paced environmentDetail-oriented with positive attitude towards workExcellent interpersonal and written communication skillsPreferred knowledge and experience:Experience writing Python codeExperience operating dilution refrigerators (DRs) and adiabatic demagnetization refrigerators (ADRs)CAD and simulation experience for thermal/mechanical modeling (e.g., Solidworks, COMSOL)Experience with fibreoptical coupling to superconducting devicesFamiliarity with analog test equipment (e.g., VNA, SMU) Experience with statistical process control and  quality management system reporting methodsThis is for a new position. Your base salary will be determined based on your location, experience, and internal benchmarks. The base salary range is 140,000 - 190,000 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...