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Added 1 hour ago
OI
Senior Full-Stack Developer
Odaia Intelligence Inc.
Remote, Canada
- Full-time
- Remote
We're looking for a Senior Full-Stack Developer to join our engineering team! You'll work across the full stack to design, build, and ship features that directly impact how pharma…
Added 2 hours ago
AC
Trader (Blockchain) Toronto
AP Capital
Toronto, ON
- Full-time
Support senior traders with trade execution and strategy monitoring
Added 3 hours ago
ES
Lead AI Engineer
EPAM Systems
Canada
- Full-time
Experience: 7+ years of overall software engineering experience, with a proven track record of senior/lead autonomy
Added 4 hours ago
SM
RQ11622 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking an experienced Senior Systems Testing/QA Specialist with strong expertise in enterprise-level software testing, manual and automated testing, test strategy development, test…
Added 4 hours ago
SM
RQ11622 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking an experienced Senior Systems Testing/QA Specialist with strong expertise in enterprise-level software testing, manual and automated testing, test strategy development, test…
Added 4 hours ago
SM
RQ11622 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking an experienced Senior Systems Testing/QA Specialist with strong expertise in enterprise-level software testing, manual and automated testing, test strategy development, test…
Added 5 hours ago
MC
Transportation Safety Manager
Migrate Corp
Mississauga, ON
- Full-time
## 🚨 SYSTEM TEST: Enterprise Senior Principal Lead Full-Stack Omni-Channel Cloud Architect, Developer, & Quality Assurance Visionary (GenAI/Web5/Quantum-Ready) - Level IX (Band 12-A) 🚀
Added 6 hours ago
X
Quantum Software Developer - FTQC Software (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
Proven experience in production-grade Python and C++ software development with a focus on writing clean, modular and maintainable code.
Added 6 hours ago
X
Software Developer - Frontend (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
As a Software Developer, you will help build out the pennylane.ai ecosystem of products. The goal of pennylane.ai is to help pioneer quantum software development as a discipline and spread…
Added 6 hours ago
X
Quantum Scientist - Compilation
Xanadu
Toronto, ON
- Full-time
Scientific programming experience in Python, C/C++.
Added 6 hours ago
X
Software Developer - Backend (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
As a Software Developer, you will help build out the pennylane.ai ecosystem of products. The goal of pennylane.ai is to help pioneer quantum software development as a discipline and spread…
Added 6 hours ago
X
Quantum Scientist - Algorithms
Xanadu
Toronto, ON
- Full-time
Strong software development and scientific programming skills in Python, preferably with a proven track record of contributing to open-source scientific libraries.
Added 6 hours ago
X
Quantum Scientist - Finance
Xanadu
Toronto, ON
- Full-time
Strong software development and scientific programming skills in Python, preferably with a proven track record of contributing to open-source scientific libraries.
Added 6 hours ago
X
Software Developer - Backend (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
As a Software Developer, you will contribute to the platform and infrastructure that powers Xanadu's quantum hardware development. You will work alongside hardware architects, photonic…
Added 6 hours ago
X
Software Development Manager
Xanadu
Toronto, ON
- Full-time
Strong foundational knowledge equivalent to a senior individual contributor, including hands-on experience with Python and Git.
Added 6 hours ago
X
Senior Software Developer - Automation Systems
Xanadu
Toronto, ON
- Full-time
As a Senior Software Developer on our AI team, you will be a hands-on individual contributor who sets the technical bar for the internal AI research platform that accelerates Xanadu's R&D.…
Added 6 hours ago
X
Senior Scientist - SNSPDs
Xanadu
Toronto, ON
- Full-time
Added 6 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 6 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 6 hours ago
X
Senior Low Temperature Device Engineer (SNSPDs)
Xanadu
Toronto, ON
- Full-time
● Experience using Python for component design, simulation, layout, and data analysis
Added 6 hours ago
X
Senior Cryogenic Engineer
Xanadu
Toronto, ON
- Full-time
Added 6 hours ago
X
Senior Scientist - Precision Measurements (Optical Metrology)
Xanadu
Toronto, ON
- Full-time
As a Senior Scientist - Precision Measurements , you will contribute your expertise in precision measurements for optical detector metrology to further the performance and scalability of…
Added 6 hours ago
X
Senior Photonics Engineer - Experimental Nonlinear Optics
Xanadu
Toronto, ON
- Full-time
Programming: Proficiency in Python for data acquisition/analysis and experience with version control.
Added 6 hours ago
X
Sr. Quantum Architecture Scientist
Xanadu
Toronto, ON
- Full-time
…circuits to discrete-variable qubit quantum error correction. As a senior scientist you will also be involved in higher-level vision setting and design, as well as the management of people…
Added 6 hours ago
X
Senior Data Scientist – Decision Intelligence
Xanadu
Toronto, ON
- Full-time
As a Senior Data Scientist, you will lead the design and development of a unified decision intelligence product that fuses data from across Xanadu's R&D efforts – fabrication, device…

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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