Process Integration Engineer Photodiode Development

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 an industry leader in photonic quantum computing Xanadu takes hardware very seriously! In this role you will work within the Fabrication Process Engineering team to deliver Xanadus photonic quantum computing hardware. With your deep technical expertise and experience developing waveguide-integrated photodiodes and co-integration techniques you will be responsible for developing and optimizing fabrication and integration processes used to build critical components of Xanadus quantum computing hardware. Responsibilities include:

• Design and execute process improvement experiments for waveguide-integrated photodiodes including defining process splits gathering and analyzing inline and offline metrology data analyzing optical device data etc.
• Work with external partners to execute process development and optimization experiments for photodiode co-integration processes including micro-transfer printing (µTP) die-to-wafer bonding wafer-to-wafer bonding or similar
• Define and execute metrology and failure analysis plans to identify and mitigate failure modes and assess results of process optimization experiments
• Regularly visit and coordinate with Xanadus industrial partners for photodiode fabrication and co-integration
• Collaborate with internal and external photonics process engineers process integration engineers design engineers and test engineers including at Xanadus industrial partners
• Challenge the state-of-the-art in key performance metrics associated with waveguide-integrated photodiodes
• Stay abreast of new developments in the field of integrated photonics and rapidly implement new learnings and discoveries
• Availability for travel required expected 20% travel time

• PhD in physics materials science electrical engineering or related field
• Experience with fabrication process development for integrated active optical components including InGaAs- and/or Ge-based waveguide-integrated photodiodes on-chip lasers etc.
• Familiarity with standard semiconductor and photonics metrology and failure analysis techniques including at least two of: SEM TEM AFM ellipsometry XRR/XRD SIMS Raman spectroscopy photoluminescence
• Familiarity with functional epitaxial and crystalline materials for photonics including III-Vs Ge lithium niobate etc.
• Experience with data analysis and related software such as Python JMP MATLAB etc.
• Basic familiarity with passive and active photonic components such as waveguides modulators switches beamsplitters resonators MZIs etc.
• Experience with optical and/or electro-optical characterization of heterogeneously integrated photonics components
• Strong critical thinking skills
• Demonstrated ability to tackle challenging problems and develop innovative solutions
• Excellent communication skills and strong sense of teamwork

• 5 years of industrial and/or academic experience optimizing fabrication processes for active photonic elements such as photodiodes lasers etc.
• Advanced Materials Expertise: Prior experience in III-V epitaxial growth (e.g. MBE MOCVD) and specialized fabrication techniques for Compound Semiconductors (GaAs InP).
• Experience with heterogeneous integration processes for integrated photonics and/or semiconductor applications including some subset of µTP die-to-wafer bonding wafer-to-wafer bonding or similar
• Experience co-integrating high-efficiency photodiodes lasers or similar devices with photonic integrated circuits
• Demonstrated track record of achieving or exceeding state-of-the art performance specifications in heterogeneously integrated photonic components
• Experience with full product development cycle from R&D through volume ramping
• Experience in photonic quantum computing hardware development
• Experience coordinating with and managing external partners including major semiconductor and photonics foundries
• Experience working in fabless companies
• Preferred location: Toronto ON

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.