Quantum Device Engineer (Silicon Spin-Qubits)

Job Title

Quantum Device Engineer (Silicon Spin-Qubits)

Role Summary

Take end-to-end ownership of key elements of a silicon spin-qubit device platform, covering nanofabrication, cryogenic measurement, and device validation. Work on device process development, characterization, and laboratory infrastructure to produce repeatable hardware that meets system requirements.

Experience Level

Mid-level (Level - Mid-Career). The role specifies approximately 5+ years of hands-on experience in cleanroom and quantum device work.

Responsibilities

Hands-on role combining fabrication, measurement, and engineering to move devices from prototype to reliable hardware. Key responsibilities include:

• Design and fabricate silicon spin-qubit devices using nanofabrication tools.
• Develop and refine process flows and recipes for multi-layer thin films and nanoscale device architectures.
• Identify process bottlenecks, improve reproducibility and yield, and implement process control methodologies.
• Perform structural characterization (optical microscopy, SEM, AFM) and electrical measurements to assess device quality.
• Execute transport and validation experiments at room temperature and under cryogenic conditions.
• Collaborate with theorists, device physicists, materials scientists, and systems engineers to translate requirements into hardware solutions.
• Contribute to experimental strategy, roadmap planning, and architecture decisions.
• Maintain strong documentation habits and communicate technical topics across disciplines.

Requirements

Must-have technical skills and practical experience required to perform the role; preferred items listed separately.

• 5+ years of hands-on experience in a cleanroom environment with the ability to independently design, fabricate, and iterate nanoscale device structures.
• Proven expertise in nanofabrication methods: electron-beam lithography and/or photolithography, thin-film deposition (evaporation, sputtering, ALD), and wet/dry etching.
• Experience with semiconductor processing, preferably silicon-based platforms.
• Experience in electrical characterization of nano-devices and experimental validation workflows.
• Familiarity with low-temperature measurements and cryogenic equipment (cryostats, dilution refrigerators).
• Knowledge of measurement techniques such as transport measurements, charge sensing, and RF reflectometry is beneficial.
• Proficiency in scientific programming and data analysis (e.g., Python, MATLAB, LabVIEW) for visualization and experimental control.
• Strong documentation practices and clear cross-discipline communication skills.

Nice-to-have / Preferred

• Track record of scientific or technical impact (publications, patents, or equivalent contributions).
• Experience building lab systems, processes, and standards from scratch in a fast-paced environment.
• Ability to make engineering trade-offs that balance immediate execution with long-term scalability.

Education Requirements

MSc or PhD in Physics, Nanotechnology, Electrical Engineering, Materials Science, or a closely related field with relevant experience in silicon spin qubits or comparable quantum device platforms.

About the Company

Company: Equal1

Equal1 develops quantum hardware and control systems focused on spin-qubit processors, combining hardware and software engineering to advance scalable semiconductor-based quantum computing across international R&D sites.