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Xanadu

Senior Photonics Engineer - Experimental Nonlinear Optics

Toronto, ON, Canada

The base salary range is 150,000 – 180,000 CAD, commensurate with location and experience. · Full-time

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Job details

Pay: The base salary range is 150,000 – 180,000 CAD, commensurate with location and experience.
Job type: Full-time
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. 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:
As a member of the Hardware R&D Team, you will collaborate with our team to develop nonlinear optical devices on integrated nanophotonic platforms. You will design, build, and operate complex optical experiments, utilizing rigorous data analysis to characterize and optimize scalable quantum light sources for the world’s first photonic quantum computers.

Experimental Design: Build and upgrade complex optical laboratory experiments to generate and measure squeezed vacuum.
Benchmarking: Contribute to next-generation squeezer development by benchmarking experiments against nonlinear simulations and analytical models.
Characterization: Characterize photonic integrated chip (PICs) with thermal and electro-optic elements using continuous-wave and pulsed laser light.
Documentation: Generate detailed technical documentation, including design specs, test procedures, and operational manuals.

Basic qualifications and experience:

Quantum Optics: Strong familiarity with squeezed light, photon pair generation, and single-photon detection.
Coherent Detection: Proficiency in homodyne/heterodyne detection, phase-sensitive experiments, and shot noise-limited measurement.
Control Theory: Experience with laser and resonator locking (Pound-Drever-Hall, dither locking)
Laboratory Proficiency: Demonstrated ability to build/troubleshoot experiments using RF and opto-electronic equipment (oscilloscopes, signal generators, spectrum analyzers, photodiodes).
Electronics: Solid understanding of RF electronics, opto-electronic detectors, and electro-optic modulator concepts.
Programming: Proficiency in Python for data acquisition/analysis and experience with version control.
Modeling: Proven ability to build mathematical models of physical systems using analytical and numerical tools.
Education: Ph.D. in Quantum Optics, Photonics, AMO, Electrical Engineering, or a related field, with relevant research experience.

Preferred qualifications and experience:

Resonators: Experience with microring resonators, frequency combs, or soliton generation.
Pulse Shaping: Experience with pulse shaping techniques using amplitude/IQ modulators and arbitrary waveform generators.
Autonomy: Ability to independently design complex experiments and communicate measurement-derived insights effectively.
Advanced Automation: Experience writing Python scripts for instrument control and hardware interfacing.
Laser Noise: Expertise in noise characterization techniques (phase/frequency, RIN).

This is a new position. The base salary range is 150,000 – 180,000 CAD, commensurate with location and experience. 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, build, and operate complex optical experiments to develop nonlinear optical devices on integrated nanophotonic platforms. Additionally, you will characterize scalable quantum light sources and contribute to next-generation squeezer development through rigorous data analysis.

Requirements

Candidates must hold a Ph.D. in Quantum Optics, Photonics, AMO, Electrical Engineering, or a related field with strong research experience. Proficiency in experimental design, coherent detection, RF electronics, and Python programming is required.

Skills

Quantum Optics
Nonlinear Optics
Integrated Nanophotonics
Homodyne Detection
Heterodyne Detection
Laser Locking
Pound-Drever-Hall
RF Electronics
Opto-electronic Detectors
Python
Data Analysis
Mathematical Modeling
Pulse Shaping
Noise Characterization
Version Control
Experimental Design

Benefits

Equity
Benefits

Visa sponsorship

Not detected in the job text

Keywords

Quantum Computing
Nanophotonics
Nonlinear Optics
Squeezed Vacuum
Photonic Integrated Chips
PICs
Continuous-wave Laser
Pulsed Laser
Homodyne Detection
Heterodyne Detection
Shot Noise-limited Measurement
Resonator Locking
Dither Locking
RF Electronics
Opto-electronic Detectors
Electro-optic Modulators
Python
Version Control
Mathematical Modeling
Microring Resonators
Frequency Combs
Soliton Generation
Pulse Shaping
Amplitude Modulators
IQ Modulators
Arbitrary Waveform Generators
Noise Characterization
RIN
Hardware R&D
Quantum Optics

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