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Added 4 mins ago
Senior Manager, Risk, Analytics & Technology Enablement
Ontario College Of Pharmacists Ordre des Pharmaciens de L Ontario
Toronto, ON
$165,000 to $198,000 CAD / year
The Senior Manager, Risk, Analytics, and Technology Enablement is a strategic leadership role responsible for advancing the College's ability to protect the public and improve regulatory…
Added 4 mins ago
Manager, Communications
Canadian Cancer Society
Toronto, ON · Ottawa, ON · Montreal, QC · Quebec, QC · Prince George, BC · Vancouver, BC · Kelowna, BC · Halifax, NS · St. John's, NL · Calgary, AB
$65,000 to $75,000 CAD / year
Full-time
…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
Added 4 mins ago
Delegated Authority Manager
Tokio Marine Canada Ltd
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Added 17 mins ago
Business Analytics Specialist
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$83,000 to $100,000 CAD / year
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Manager, Communications
Canadian Cancer Society
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$65,000 to $75,000 CAD / year
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…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
Added 17 mins ago
Manager, Communications
Canadian Cancer Society
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$65,000 to $75,000 CAD / year
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…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
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Added 17 mins ago
Manager, Communications
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Added 17 mins ago
Manager, Communications
Canadian Cancer Society
St. John's, NL
$65,000 to $75,000 CAD / year
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…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
Added 17 mins ago
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Manager, Communications
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Vancouver, BC
$65,000 to $75,000 CAD / year
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Added 17 mins ago
Manager, Communications
Canadian Cancer Society
Toronto, ON
$65,000 to $75,000 CAD / year
Full-time
…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
Added 17 mins ago
Senior Executive Assistant to the CEO & CFO/Adjoint(e) exécutif(ve) principal(e) au président directeur général et chef de la direction financière
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Added 17 mins ago
Senior Software Engineer I
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Added 17 mins ago
Manager, Communications
Canadian Cancer Society
Montreal, QC
$65,000 to $75,000 CAD / year
Full-time
…awareness of CCS’s mission to external audiences. Reporting to the Senior Communications Manager, the role helps to shape communications activities to support CCS’s mission work,…
Added 19 mins ago
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Added 19 mins ago
Intermediate Civil Engineer - Dams
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Added 19 mins ago
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Added 19 mins ago
Senior QA Analyst (12 months Contract)
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Added 19 mins ago
Senior IT Administrator
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Mechanical Engineer
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Added 19 mins ago
CA Sr. Total Rewards Specialist
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Join Henry Schein Canada as a Senior Total Rewards Specialist and help deliver Total Rewards programs that support Team Schein Members across Canada. This experienced role combines complex…
Added 34 mins ago
Senior Software Engineer I
Braze
Toronto, ON
We're looking for a Senior Software Engineer for our Currents team, responsible for building, maintaining, and evolving Currents, our data export system at scale. The Currents system is a…

Xanadu

Senior Photonics Engineer - Homodyne Detection

Toronto, ON, Canada

Pay: The base salary range is 130,000 - 180,000 CAD.
Job type: Full-time
Apply by: Oct 11, 2026
Posting language: English
Posted: Jul 18, 2026

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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. 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

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 photonic chips that include networks of high-speed electro-optic modulators and integrated balanced homodyne detectors, with a particular focus on high-efficiency pulsed homodyne detection and pulsed quantum homodyne tomography.

Key Responsibilities

Design, build and upgrade complex optical laboratory experiments to characterize the performance of photonic integrated chips with electro-optic elements, using continuous-wave and pulsed laser light.
Characterize and benchmark the performance of integrated balanced homodyne detectors for pulsed signals, with bandwidths in the hundreds of MHz regime.
Design and build new characterization strategies as needed, to fit evolving optical/electrical requirements.
Measure figures of merit including detection efficiency, noise clearance, effective bandwidth, common-mode rejection, cross-talk etc.
Benchmark and drive further development of signal processing techniques for pulsed homodyne detection & homodyne tomography of quantum states of light.
Maintain up-to-date familiarity with research trends in measuring quantum states of light.
Implement and maintain optical phase-locked loops and related frequency/phase stabilization; design and troubleshoot chip control electronics, PID controllers and high-precision locking schemes for ultra-stable electronic and optical systems; contribute to the development and assessment of new phase-locking and calibration protocols.
Closely collaborate with PIC development, electrical, mechanical, and software engineering teams to ensure successful module integration.
Generate detailed technical documentation, including design specifications, test procedures, characterization reports, and operational manuals.

Basic qualifications and experience:

Optics expertise: Hands-on experimental optics lab experience, with knowledge in integrated optics & fibre optics, locking optical interferometers & noise characterization.
Homodyne detection: Direct experience with homodyne detection of optical signals. Experience with pulsed homodyne detection is preferred, but not required.
Electronics: Working familiarity with opto-electronic detectors, transimpedance amplifiers; sound understanding of common RF electronics & electro-optic modulator concepts.
Education: Ph.D. in Quantum Optics, Photonics, AMO, Electrical Engineering or a closely related field.

Preferred qualifications and experience:

Prior work experience: Greater than 4 years of experience in any of: quantum computing (particularly in optical quantum computing); thin-film lithium niobate modulators; or waveguide-integrated photodiodes.
Advanced quantum optics: Demonstrated expertise in pulsed homodyne detection and homodyne tomography of quantum optical states, alongside familiarity with recent research in these areas.
Autonomy and technical adaptability: The ability to independently design, build, and troubleshoot complex optical experiments and clearly communicate measurement-derived insights; the ability to rapidly absorb complex, proprietary architectures and master new experimental frameworks.
Advanced Automation: Experience writing Python scripts for instrument control, hardware interfacing, and automated data acquisition.
Modeling & Analysis Skills: Proven ability to build mathematical models of physical systems utilizing both analytical and numerical tools; expertise in advanced signal processing techniques.
Co-packaged integration: Experience defining the physical, optical, and electrical interfaces between PICs and high-speed ASICs within a Co-Packaged Optics (CPO) framework.

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 130,000 - 180,000 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

Design, build, and experimentally validate optical laboratory systems and integrated balanced homodyne detectors, measuring performance metrics for pulsed signals and developing characterization and signal-processing methods. Maintain optical and electronic stabilization systems, troubleshoot control electronics, collaborate across engineering teams on module integration, and produce detailed technical documentation.

Requirements

A Ph.D. in quantum optics, photonics, AMO, electrical engineering, or a closely related field is required, along with hands-on experimental optics experience, direct homodyne detection experience, and familiarity with optoelectronic detectors, transimpedance amplifiers, RF electronics, and electro-optic modulators. Preferred qualifications include more than four years of relevant experience, pulsed homodyne and tomography expertise, Python-based instrument automation, advanced modeling and signal processing, and experience with co-packaged optics integration.

Skills

Experimental Optics
Integrated Photonics
Fiber Optics
Homodyne Detection
Pulsed Homodyne Detection
Homodyne Tomography
Optical Phase-Locked Loops
Optical Interferometer Locking
Noise Characterization
RF Electronics
Electro-Optic Modulators
Signal Processing
Python
Automated Data Acquisition
Mathematical Modeling
Co-Packaged Optics Integration

Benefits

Equity
Benefits

Visa sponsorship

Not detected in the job text

Keywords

Quantum Computing
Quantum Optics
Photonics
Integrated Photonics
Photonic Integrated Circuits
Homodyne Detection
Pulsed Homodyne Detection
Quantum Homodyne Tomography
Balanced Homodyne Detectors
Electro-Optic Modulators
Thin-Film Lithium Niobate
Waveguide-Integrated Photodiodes
Optical Phase-Locked Loops
Frequency Stabilization
Phase Stabilization
PID Controllers
RF Electronics
Transimpedance Amplifiers
Noise Characterization
Detection Efficiency
Common-Mode Rejection
Cross-Talk
Signal Processing
Python
Instrument Control
Automated Data Acquisition
Mathematical Modeling
Co-Packaged Optics
High-Speed ASICs
Optical Interferometers

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