Photonics Test Engineer - High Precision

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.

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. You’ll 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.

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!