Senior Research Scientist, Superconducting Hardware

About the team

The Quantum Computing Research team is dedicated to developing innovative methods to get the best possible performance from contemporary and next generation quantum computers. We push toward quantum advantage by developing cutting-edge applications, employing AI, control theory, and physics principles to optimize and automate critical parts of the quantum computing stack. We conduct pioneering research looking toward the near future, including quantum error correction and the integration of quantum computers with high performance computing and data centers.

About the role

At Q-CTRL, we’re pioneering the future of quantum technology. In this role, you will join a collaborative team of quantum scientists and software engineers to advance the control and calibration of superconducting quantum hardware. Your primary focus will be on runtime calibration methods for optimizing two-qubit gates, enabling the high-fidelity execution of quantum algorithms and quantum error correction at scale. You will push calibration execution closer to the hardware, leveraging FPGA compute and low-latency communication with the compute host. Partnering closely with cross-functional research, product, and engineering teams, you will apply your insights to complex quantum computing challenges and translate your ideas into robust software tools. This position offers a unique opportunity to work at the forefront of quantum technology, driving innovation and delivering impactful solutions.

What you'll be doing:

• Design and test novel calibration techniques for two-qubit gates across different hardware architectures.
• Develop scalable protocols for processor optimization (e.g. cross-talk mitigation, leakage reduction, defect mitigation).
• Conduct research in runtime control strategies leveraging low-latency compute.
• Collaborate with engineering and product teams to translate ideas and research outcomes into production-level software.
• Explain, document and present research solutions in accessible language.

Ideally you'll have:

• An advanced degree in Physics, Engineering, or a closely related discipline. A PhD is preferred, but we also consider exceptional candidates with previous industry experience.
• 3+ years of experience conducting research in a relevant field.
• Deep understanding of superconducting qubit physics and RF engineering.
• Expertise in calibrating two-qubit gates for transmon architectures (e.g. tunable couplers, parametric, cross-resonance)
• Experience with the calibration control stack, signal chain, FPGAs.
• A good grasp of software development best practices, and experience in developing software modules for qubit measurement and control (Python, C++, or Rust).