Photonics Test Engineer High Precision

About Xanadu:
Xanadus 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 worlds most challenging problems and literally change the world. And that is something to be excited about!

Your role and responsibilities:

As a Photonics Test Engineer (high-precision measurements) you will be the architect of our active device characterization framework. Your primary mission is to bridge the gap between standard measurements and the ultra-high-precision (UHP) requirements essential for quantum advantage. You will lead the development of experimental procedures and hardware architectures to characterize integrated photodiodes (PDs) and active components with unprecedented accuracy. Your responsibilities will include:

• Design assemble and optimize end-to-end test benches capable of resolving responsivity and loss variations at the sub-10 mdB level.
• Develop and maintain rigorous Uncertainty Budgets (per NIST standards). You will identify and systematically mitigate sources of measurement error including polarization instability thermal fluctuations and instrumentation non-linearity.
• Perform comprehensive error analysis to separate systematic hardware limitations from statistical device performance. Youll be responsible for identifying and mitigating noise in the data.
• Plan and perform measurement routines for our active devices ensuring our testing activities align with development timelines and scale toward high-volume.
• Work closely with our design instrumentation and tooling teams to exchange results and derive actionable insights.

Basic qualifications and experience:

You must possess the below minimum qualifications to be initially considered for this position. Preferred qualifications are in addition to the minimum requirements and are considered a plus factor in identifying top candidates.

• BSc or MS degree in Electrical Engineering Physics or related field.
• 1 years experience as a testing or product engineer of electro-optical devices and/or circuits products/wafers in a professional setting.
• Extreme attention to detail and a systematic approach to experimentation with a focus on minimizing both systematic and statistical errors.
• Deep understanding of the operational principles of integrated PDs and the physics governing active photonic devices.
• Proven experience testing integrated photonic devices (photodiodes modulators lasers) at both chip and wafer scale.
• Proficiency in Python for instrument control and experience with standard lab equipment (SMUs OPMs Oscilloscopes VNAs LCR meters).
• Experience handling complex experimental datasets including fitting to models refining simulations and performing rigorous error analysis.
• Ability to operate independently in a fast-paced environment and manage multiple competing priorities.

Preferred qualifications and experience:

• MS or Ph.D. thesis in the field of electro-optical characterization of semiconductor devices.
• 2 years experience as a testing or product engineer of electro-optical devices

• Practical experience with ISO 17025/9001 frameworks specifically regarding measurement traceability and the creation of Uncertainty Budgets.
• Proficiency in Gauge R&R and ANOVA to validate test station stability and isolate device performance from setup-induced noise.
• Demonstrated experience in characterizing sub-0.1 dB variations in optical power or responsivity including mitigation of PDL (Polarization Dependent Loss) and thermal drift.
• Experience working with commercial test solutions (e.g. FormFactor Ficontec MPI) and scaling R&D procedures for production environments.
• Understanding of sources of loss in photonic devices and their relation to fabrication processes.
• Experience in TCAD/COMSOL simulations for semiconductor devices to correlate physical models with experimental data.

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 110000 - 140000 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 .

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.