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Added 6 hours ago
L
Senior Forward Deployment Engineer
Luxoft
Mississauga, ON
- Full-time
The role combines senior software engineering, DevOps, SRE, test automation, application security, and legacy modernization. Approximately 70% of the work involves hands-on coding and…
Added 7 hours ago
JE
Manufacturing Engineer
JDRF Electromag Engineering Inc.
Mississauga, ON
- $75,000 to $125,000 CAD / year
- Full-time
We are seeking a motivated and detail-oriented Manufacturing Engineer to support and improve the manufacturing of our hardware products.
Added 7 hours ago
JE
Manufacturing Engineer
JDRF Electromag Engineering Inc.
Mississauga, ON
- Full-time
We are seeking a motivated and detail-oriented Manufacturing Engineer to support and improve the manufacturing of our hardware products.
Added 8 hours ago
L
Senior QA Engineer
Luxoft
Toronto, ON
- Contract
- Design, build and maintain automated test frameworks and scripts with independence improving efficiency and test coverage to enable business capabilities, working in an Agile environment…
Added 8 hours ago
AI
Senior Quality Assurance Specialist
AI Interviews
Toronto, ON · Greater Toronto Area, Canada
- Contract
We are looking for a Senior QA Engineer with strong experience in automation testing of mobile and web applications. The ideal candidate should have hands-on experience with Appium, mobile…
Added 8 hours ago
GD
Computer Modeling & Simulation Staff Specialist/Engineer
General Dynamics Land Systems–Canada
London, ON
- Full-time
Computer Modeling & Simulation Staff Specialist/Engineer P55
Added 9 hours ago
HT
Designer, Development (Service)
Husky Technologies
Bolton, ON
- Full-time
The service team is currently seeking a Mechanical engineer/designer to specialize in resolving service issues.
Added 9 hours ago
HT
Product Development Engineer
Husky Technologies
Bolton, ON
- Full-time
…discipline inputs – Business Development, Analysis, Electrical, Software, Fluid Power, Metallurgy, Manufacturing,…
Added 9 hours ago
GD
Mechanical Engineering Developer
General Dynamics Missions System International
Ottawa, ON
- Full-time
We're looking for a Mechanical Engineer to support the development of mechanical designs and engineering systems across various products and programs within the organization.
Added 10 hours ago
GD
Junior Hardware Engineering Developer
General Dynamics Missions System International
Ottawa, ON
- Full-time
…systems, power supplies, circuit boards, optics, FPGAs and…
Added 10 hours ago
D
Senior C++ Engineer
DuckDuckGo
Remote, Canada
- $178,500 USD / year
- Full-time
- Remote
Experience shipping software to a large consumer audience
Added 11 hours ago
PF
Technical Manager
Power Factors
Brossard, QC
- Full-time
Added 11 hours ago
PF
Technical Manager
Power Factors
Remote, Canada
- Remote
Added 11 hours ago
WW
QA Engineer
White Widget
MB · Back, MB
- Full-time
White Widget is a leading-edge software design and development studio. We're a fast-growing team with a diverse set of backgrounds and skills. Quality is the backbone of everything we ship,…
Added 11 hours ago
Q
Devops Engineer
Qorsa
Waterloo, ON
- Full-time
We are hiring a DevOps Engineer to run the build, release and deployment infrastructure for CasQade, our crypto-agile post-quantum platform, and for our AI applications. Our components ship…
Added 12 hours ago
RC
Data Path Engineer
Ribbon Communications
Ottawa, ON
- Full-time
We deliver global real-time communications software and network solutions to service providers, enterprises, and critical infrastructure sectors. We engage deeply with our customers,…
Added 13 hours ago
Q
Cryptography Engineer
Qorsa
Waterloo, ON
- Full-time
We are hiring a Cryptography Engineer to work on the cryptography at the core of CasQade, our crypto-agile TLS and PKI platform, and on related products including our hardware program. You…
Added 13 hours ago
S
Senior QA Automation Engineer / Lead – eCommerce Payments
Simpliigence
Canada
- Contract
We are hiring a hands-on Senior QA Automation Engineer to lead QA for Adyen payment projects on a large global eCommerce platform for a leading consumer brand.
Added 13 hours ago
O
ASIC Engineer
O-HIVE.AI
Windsor, ON
- Full-time
O-HIVE is seeking an ASIC Design Engineer to help design and implement a mixed-precision AI SoC for real-time 3D vision, VLM inference, sensor processing, and robotic control.
Added 13 hours ago
HT
Designer, Development (Service)
Husky Technologies
Bolton, ON
- Full-time
The service team is currently seeking a Mechanical engineer/designer to specialize in resolving service issues.
Added 13 hours ago
HT
Product Development Engineer
Husky Technologies
Bolton, ON
- Full-time
…discipline inputs – Business Development, Analysis, Electrical, Software, Fluid Power, Metallurgy, Manufacturing,…
Added 13 hours ago
GD
Computer Modeling & Simulation Staff Specialist/Engineer
General Dynamics Land Systems–Canada
London, ON
- Full-time
Computer Modeling & Simulation Staff Specialist/Engineer P55
Added 13 hours ago
E
Junior Geotechnical EIT, Tailings & Mine Waste
Equilibrium
Vancouver, BC
- $72,000 to $86,000 CAD / year
- Full-time
We are seeking a Junior Geotechnical Engineer-in-Training (EIT) to join our growing Mine Waste team. Our Mine Waste practice is a strategic area of growth, complementing our established…
Added 13 hours ago
A
System Validation Engineer – Data Center GPU
AMD
Markham, ON
- $96,800 to $145,200 USD / year
- Full-time
This is an excellent opportunity for an engineer who enjoys solving complex technical challenges, building automated test solutions, and working across multiple layers of the system stack.
Added 14 hours ago
SL
Lead AI Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto Atria
- Full-time
Corporate IT is seeking an experienced Lead AI Engineer to design, develop, deploy, and support enterprise-grade Artificial Intelligence, Machine Learning, and Generative AI solutions on…

Xanadu

Senior Photonics Engineer - Homodyne Detection

Toronto, ON, Canada

The base salary range is 130,000 - 180,000 CAD. · Full-time

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Job details

Pay: The base salary range is 130,000 - 180,000 CAD.
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:
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

The role involves designing, building, and characterizing photonic integrated chips with a focus on high-efficiency pulsed homodyne detection. You will collaborate with cross-functional engineering teams to integrate these systems and generate detailed technical documentation.

Requirements

Candidates must hold a Ph.D. in Quantum Optics, Photonics, Electrical Engineering, or a related field. Strong hands-on experience in experimental optics, homodyne detection, and opto-electronic systems is required.

Skills

Photonics
Homodyne detection
Quantum optics
Integrated optics
Fiber optics
Electro-optic modulators
Python
Signal processing
Optical interferometers
Transimpedance amplifiers
RF electronics
PID controllers
Quantum computing
Lithium niobate modulators
Waveguide-integrated photodiodes
Co-packaged optics

Benefits

Equity
Health benefits

Visa sponsorship

Not detected in the job text

Keywords

Photonics
Homodyne detection
Quantum computing
Integrated optics
Fiber optics
Electro-optic modulators
Pulsed laser
Quantum homodyne tomography
Signal processing
Optical interferometers
Transimpedance amplifiers
RF electronics
PID controllers
Python
Lithium niobate
Waveguide-integrated photodiodes
Co-packaged optics
Hardware engineering
Technical documentation
Calibration protocols
Phase-locked loops
Noise characterization
Quantum states of light
ASIC
PIC development

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