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C
QA SDET – Spécialiste Automatisation & AI
CGI
Sherbrooke, QC
- Full-time
Added 3 hours ago
DE
SYSTEMS ENGINEER
Design Electronics
Niagara Falls, ON
- Full-time
Reporting to the Chief Design Officer, the Systems Design Engineer will be the technical expert responsible for pre-sales, design/build, sales support, and quality assurance.
Added 3 hours ago
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Senior Software Engineer, Payments
Kindsight
Remote, Canada
- $120,000 to $150,000 CAD / year
- Full-time
- Remote
This is a strong opportunity for an engineer who has already owned production Payments or billing systems and wants broader technical responsibility in a greenfield environment. You'll help…
Added 3 hours ago
X
Senior Photonics Engineer - Homodyne Detection
Xanadu
Toronto, ON
- Full-time
We are seeking a Senior Photonic Engineer – Integrated Homodyne to participate in designing, developing and experimentally validating cutting-edge photonic systems. You will be working with…
Added 3 hours ago
X
Senior Photonic Engineer - Experimentalist
Xanadu
Toronto, ON
- Full-time
We are seeking a Senior Photonic Engineer – Experimentalist to participate in designing, developing and experimentally validating cutting-edge photonic systems. Your primary focus will be…
Added 3 hours ago
X
Senior Low Temperature Device Engineer (SNSPDs)
Xanadu
Toronto, ON
- Full-time
…system detection efficiency, fast reset times, and scalable integration into large detector…
Added 3 hours ago
X
Senior Cryogenic Engineer
Xanadu
Toronto, ON
- Full-time
Xanadu is looking for a Cryogenic Engineer to lead designing, developing, and building Xanadu’s next generation cryostats as well as contribute to the build-out of our facility-level…
Added 3 hours ago
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Senior Photonics Design Engineer - Integrated Nonlinear Optics
Xanadu
Toronto, ON
- Full-time
The successful candidate will work within the photonic integration team to develop cutting-edge passive and active components used throughout Xanadu's fault tolerant architecture.…
Added 3 hours ago
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Senior Analog ASIC Design Engineer
Xanadu
Toronto, ON
- Full-time
We are looking for an experienced and driven ASIC Engineer to join our hardware team and contribute to the development of cutting-edge photonic quantum computing systems. If you thrive on…
Added 3 hours ago
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Photonics Engineer System Integration
Xanadu
Toronto, ON
- Full-time
We are looking for a hands-on, analytical, and driven Photonics Engineer to join our hardware team and accelerate the development of our Fault-Tolerant Quantum Computing (FTQC) systems. If…
Added 3 hours ago
X
Photonics Engineer - Experimentalist
Xanadu
Toronto, ON
- Full-time
…quantum computing. We are seeking a highly skilled Photonic Engineer - Experimentalist to perform the design, development, and experimental validation of cutting-edge photonic systems, with…
Added 3 hours ago
X
Layout and Design Engineer - SNSPDs (Superconducting Nanowire Single Photon Detectors)
Xanadu
Toronto, ON
- Full-time
Experience collaborating with internal teams and external partners across process integration, packaging, and fabrication
Added 3 hours ago
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Lead Engineer - Laser Systems
Xanadu
Toronto, ON
- Full-time
The Lead Engineer will architect and build the ultra-stable, low-noise laser engines powering the world’s first fault-tolerant photonic quantum computers, acting as both a system architect…
Added 3 hours ago
X
Packaging Engineer - Die Bonding Process
Xanadu
Toronto, ON
- Full-time
…you will utilize your hands-on expertise in advanced device integration and sample preparation to contribute directly to Xanadu’s rack-scale quantum computer development. In the role of…
Added 3 hours ago
X
Technical Project Manager
Xanadu
Toronto, ON
- Full-time
Experience with technical product development, hardware/software integration, semiconductor, quantum computing, or other advanced technology environments.
Added 3 hours ago
X
Process Integration Engineer
Xanadu
Toronto, ON
- Full-time
Collaborate with internal and external photonics process engineers, process integration engineers and photonics design engineers, including at Xanadu’s foundry partners
Added 3 hours ago
X
Process Integration Engineer - SNSPD Nanofabrication
Xanadu
Quebec, QC
- Full-time
While we are primarily seeking a Process Integration Engineer, we are open to considering candidates for a Senior role should their experience and technical leadership significantly exceed…
Added 4 hours ago
ES
Senior Solution Architect
EPAM Systems
Toronto, ON
- Full-time
Experience with hybrid and on-premises architecture, including integration with e-commerce systems and legacy platforms
Added 5 hours ago
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Principal SerDes System/DSP Design Engineer
Ciena
Canada
- $126,100 to $201,500 CAD / year
- Full-time
We are seeking a highly skilled Senior SerDes System/DSP Design Engineer to join our advanced engineering team . In this role, you will lead the architecture, design, and validation of…
Added 7 hours ago
M
Embedded Software Engineer
MyArmenianNetwork
Oakville, ON
- Full-time
We are seeking a hands-on Embedded Software Engineer for our core engineering team. You will write low-level intelligence, firmware, and control algorithms for connected robotic machinery,…
Added 8 hours ago
AS
Senior Data Developer
AgileGrid Solutions
Canada
- Full-time
We are seeking a highly skilled Senior Data Developer (Engineer) to join our dynamic team. This role is instrumental in establishing a robust data foundation for Contact Distributor, our…
Added 10 hours ago
TI
Application Release Engineer
Themesoft Inc.
Toronto, ON
- Contract
Added 10 hours ago
TI
Cyber Security Specialist
Themesoft Inc.
Toronto, ON · North York, ON
- Contract
Technical Security Research Engineer to research, prototype, evaluate, and operationalize emerging cybersecurity capabilities. This is a hands-on role for someone who can move from a…
Added 12 hours ago
BP
Senior Process Engineer
Bunch Projects
Calgary, AB
- Full-time
We are seeking a senior Process Engineer to join our design and engineering team. The successful candidate will work closely with a multidisciplinary team to provide process engineering…
Added 12 hours ago
BP
Senior Project Engineer
Bunch Projects
Calgary, AB
- Full-time
We are seeking a senior Project Engineer to join our design and engineering team. The successful candidate will provide technical and project support across cross-functional teams,…

Xanadu

Senior Low Temperature Device Engineer (SNSPDs)

Toronto, ON, Canada

The base salary range is 150,000 - 200,000 CAD. · Full-time

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Job details

Pay: The base salary range is 150,000 - 200,000 CAD.
Job type: Full-time
Experience: ● PhD in Physics, Electrical Engineering, Mechanical Engineering, or a closely related field, plus at least 2 years of postdoctoral or industry experience
Posting language: English
Posted: Aug 14, 2026

Original job description

About Xanadu:
Xanadu’s 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 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 apply your expertise in superconducting single-photon detector engineering to advance the performance and scalability of our SNSPD platform.
As a member of the Low Temperature Devices team, you will be responsible for designing high-performance single-photon detectors with ultra-high system detection efficiency, fast reset times, and scalable integration into large detector arrays.
You will work across design, simulation, layout, and testing to take devices from concept through validation and deployment
● Drive improvements in key SNSPD performance metrics relevant to Xanadu’s architecture through device design and optimization
● Translate device designs into tapeout-ready GDS layouts for fabrication with external foundries
● Contribute to the end-to-end device development lifecycle, from concept through validation and deployment in multi-pixel arrays
● Develop and execute cryogenic test plans to characterize detector performance ● Execute iterative cryogenic testing to validate optical coupling, performance repeatability, and long-term stability
● Analyze device performance data to inform design iterations and process improvements
● Collaborate with internal teams and external partners across process integration, packaging, and fabrication
● Contribute to scaling strategies for high-density detector arrays, including layout, integration, and multiplexing constraints

Basic qualifications and experience:
● PhD in Physics, Electrical Engineering, Mechanical Engineering, or a closely related field, plus at least 2 years of postdoctoral or industry experience
● Demonstrated experience designing, laying out, and characterizing SNSPDs ● Strong understanding of superconducting device physics and single-photon detection mechanisms
● Hands-on experience with cryogenic measurement systems and device characterization
● Experience using analog test equipment (e.g., VNA, SMU) for high-frequency and low-noise measurements
● Experience using Python for component design, simulation, 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:
● Experience operating sub-Kelvin helium-based cryostats, including cooldown, troubleshooting, and maintenance
● Experience with high-bandwidth RF readout and detector interfacing
● Simulation experience for device-level modeling (e.g., COMSOL, pyTDGL)
● 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 150,000 - 200,000 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 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 recruiting@xanadu.ai.

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.

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More about this job

Responsibilities

You will design, simulate, and characterize high-performance superconducting single-photon detectors to advance the scalability of the SNSPD platform. This role involves managing the end-to-end device development lifecycle, from initial concept through to fabrication, validation, and deployment in detector arrays.

Requirements

Candidates must hold a PhD in Physics, Electrical Engineering, or a related field with at least 2 years of relevant postdoctoral or industry experience. Strong expertise in superconducting device physics, cryogenic measurement systems, and device layout using Python is required.

Skills

SNSPD engineering
Superconducting device physics
Cryogenic measurement
Device characterization
Python
GDS layout
VNA
SMU
Device simulation
Optical coupling
Data analysis
Process integration
Packaging
Multiplexing
RF readout
Sub-Kelvin cryostats

Benefits

Equity
Health benefits

Visa sponsorship

Not detected in the job text

Keywords

SNSPD
Superconducting single-photon detector
Quantum computing
Cryogenics
GDS layout
Python
VNA
SMU
COMSOL
pyTDGL
RF readout
Device physics
Semiconductor fabrication
Multiplexing
Data analysis
Hardware engineering
Sub-Kelvin
Detector arrays
Process integration
Tapeout
Optical coupling
Statistical process control
Yield optimization
Physics
Electrical engineering
Mechanical engineering

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