Postdoctoral Appointee - Quantum Electronics Device Engineer, Onsite

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The Center for Integrated Nanotechnologies and Sandia National Laboratories are seeking a highly driven postdoctoral appointee with expertise in superconducting electronics design, fabrication, and testing. The research carried out in this position will be heavily experimental, with a primary focus on Josephson junctions. Day‑to‑day tasks will involve lumped‑element circuit design, microwave circuit simulation software, micro/nanofabrication, room‑temperature probe station and cryogenic (dilution refrigerator) measurements, with device characterization performed at both DC and RF.

The research is expected to expand into other areas of superconducting and quantum electronics such as resonators and qubits.

• Design, fabricate, and test Josephson junctions
• Design, fabricate, and characterize superconducting resonators and qubits
• Troubleshoot a microwave measurement at cryogenic temperatures
• Operate, maintain, and modify high‑frequency wiring and components in a dilution refrigerator
• Collaborate on topics of quantum information science with a diverse team of experimentalists and theorists

Due to the nature of the job, this position is onsite.

• A PhD in Physics, Engineering, Materials Science, or a closely related discipline conferred within the last five years
• Significant experience with micro/nanofabrication
• Proficiency with instrumentation and data acquisition using scientific software such as Python
• A strong background with cryogenics and high‑vacuum systems
• Evidence of research achievements as demonstrated by technical publications and presentations
• The ability to obtain and maintain a DOE Q Clearance

• Substantial measurement experience and a deep knowledge of superconducting qubits
• The ability to quickly learn new experimental techniques
• Experience making effective technical presentations
• Excellent oral and written communication skills and strong social skills
• Scientific programming for efficient data collection
• Experience with electromagnetic analysis and circuit simulation software
• The ability to collaborate in a team environment and an interest in interdisciplinary research
• Independent vision and creativity

The Center for Integrated Nanotechnologies is a Department of Energy‑funded nanoscience research facility that provides users from around the world with access to state‑of‑the‑art expertise and instrumentation in a collaborative, multidisciplinary environment focusing on nanoscience integration. The Quantum Materials Systems (QMS) thrust at CINT focuses on understanding and controlling quantum effects of nanoscale materials and their integration into systems spanning multiple length scales.

The QMS thrust has world‑leading capabilities in synthesis, fabrication, characterization, and modeling of quantum materials, devices, and computing systems. Our synthesis capabilities range from novel 2‑D materials to ultrahigh mobility quantum well structures. We also have design and fabrication capabilities for integrating superconducting Josephson‑junction devices and superconducting resonator circuits into various semiconductor platforms. CINT has a state‑of‑the‑art cleanroom facility that permits micro‑ and nanoscale fabrication of quantum devices and systems, and we have…