Quantum Measurement Engineer – QPU Diagnostics & Calibration

Job Title

Quantum Measurement Engineer – QPU Diagnostics & Calibration

Role Summary

Senior measurement and calibration engineer on the Quantum Processor team responsible for experimental characterization, diagnostic protocol development, and performance optimization of superconducting QPUs. Deliver measurement routines and analyses that isolate loss mechanisms, quantify crosstalk, budget gate errors, and improve operational fidelities for next-generation processors.

Experience Level

Senior — 5+ years of hands-on experience in cryogenic measurement of multi-qubit superconducting quantum processors.

Responsibilities

Lead measurement campaigns from hypothesis to reporting and work closely with design and software teams to translate results into device improvements.

• Create and refine advanced measurement protocols to improve gate and readout fidelities and identify bottlenecks (e.g., noise and TLS spectroscopy, gate error budgeting).
• Design and execute experiments to validate and benchmark design changes such as coupling schemes, filtering, and crosstalk mitigations.
• Develop diagnostic tooling to isolate loss mechanisms, quantify crosstalk, and characterize signal integrity.
• Analyze measurement datasets, produce clear reports, and present findings to engineering teams to guide device upgrades.
• Own measurement campaigns end-to-end: experiment design, cooldown, data acquisition, analysis, and final reporting.
• Collaborate with QPU Design, Measurement, and Software Engineers to integrate experimental feedback into development cycles.

Requirements

Concise list of must-have skills and relevant, optional strengths.

• Must-have: 5+ years of hands-on cryogenic measurement experience with multi-qubit superconducting quantum processors.
• Must-have: Proven experience diagnosing performance-limiting mechanisms in superconducting quantum processors and strong understanding of cQED and superconducting device behavior.
• Must-have: Proficiency in Python and experimental data analysis for quantum experiments.
• Must-have: Strong ownership, attention to detail, and the ability to communicate results and drive design changes across teams.
• Nice-to-have: Experience with noise/TLS spectroscopy, gate error budgeting, measurement automation, or building data pipelines for experiments.

Education Requirements

Not specified.

About the Company

Company: QuantWare

Headquarters: Delft, Netherlands

QuantWare develops superconducting quantum processors using its VIO™ QPU architecture to enable scalable, high‑qubit quantum computers. The company focuses on qubit chip design, cryogenic readout, and modular QPU architectures to advance performance and manufacturability.