Quantum Measurement Engineer – QPU Diagnostics & Calibration

QuantWare BV; Delft; On-site; EUR 110,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

Holiday allowance 8%

Hybrid work

Pension plan

L&D budget

Team events

Job summary

QuantWare BV is seeking a Senior Quantum Measurement and Calibration Engineer to lead experimental characterization, diagnostic protocol development, and performance optimization of next-generation quantum processors. You will build advanced diagnostics to quantify losses, budget gate errors, and improve fidelities across QPUs.

The role involves owning measurement campaigns from hypothesis to data acquisition, analysis, and reporting, collaborating with QPU Design, Measurement and Software

Qualifications

• 5+ years of hands-on cryogenic measurement of multi-qubit superconducting processors.
• Extensive experience diagnosing performance-limiting mechanisms in superconducting quantum devices.
• Deep understanding of cQED and device signal integrity challenges.
• Proficiency in Python and data analysis for quantum experiments.
• A proactive, detail-oriented mindset with a strong drive to scale quantum technology.

Responsibilities

• Create and refine advanced measurement protocols to improve gate and readout fidelities.
• Design and execute experiments to validate design elements and layout optimisations.
• Analyze measurement datasets, report findings, and drive device design upgrades.

Skills

Cryogenic measurement

Superconducting qubits

Python

Data analysis

Collaboration

Ownership

Tools

Python

Job description

About Us

QuantWare is building the world’s most powerful quantum processors to solve humanity's greatest challenges. We do this with our unique VIO™ technology, the only QPU architecture that breaks the hardware barriers that have held quantum computing back, unlocking the path to MegaQubit quantum processors.

With VIO, we are paving the way for the hyper-scale quantum computers that will change the world. And delivering on that vision demands people who don’t shy away from tackling the hardest challenges of our time. That’s where you come in!

We are looking for a Senior Quantum Measurement and Calibration Engineer to drive the experimental characterization, diagnostic protocol development, and performance optimization of our next-generation quantum processors. You will be responsible for building advanced diagnostic routines that isolate loss mechanisms, quantify crosstalk, budget gate errors, and improve operational fidelities across our QPUs and development prototypes.

You will work in our Quantum Processor team at the core of our measurement efforts, collaborating closely with QPU Design, Measurement and Software Engineers. Your measurements will directly contribute to improving our quantum processor performance and push the edge of what is currently possible.

What you’ll be doing

• Advanced measurement protocols: Create and refine advanced protocols to improve quantum gate and readout fidelities and develop diagnostics tooling to identify performance bottlenecks (e.g. noise and TLS spectroscopy, gate error budgeting).
• Design and execution of experiments: Design and execute experiments to validate, compare, and benchmark new design elements and layout optimisations (e.g. coupling schemes, filtering, crosstalk mitigations).
• Data-Driven Feedback: Analyze measurement datasets, report findings with clarity, and lead discussions with the broader engineering teams to translate experimental learnings into device design upgrades.
• Ownership: Take complete ownership of measurement campaigns – from the initial hypothesis and experiment design through cooldown, data acquisition, analysis, and final reporting.

Your Profile

• 5+ years of hands-on experience in cryogenic measurement of multi-qubit superconducting quantum processors.
• Extensive experience in diagnosing performance-limiting mechanisms in superconducting quantum processors.
• Deep understanding of cQED and superconducting quantum device behaviour and signal integrity challenges.
• Proficiency in Python and data analysis for quantum experiments
• A proactive, detail-oriented mindset with a strong drive to scale quantum technology
• You thrive in a collaborative environment and are comfortable taking ownership from day one.

What We Offer:

• Competitive salary - A salary that reflects the impact and importance of the role (and of course 8% holiday allowance)
• Pension that’s built to last - A generous and future-proof pension plan that includes partner and dependent coverage.
• Flexibility built on trust - We focus on outcomes. Work flexibly, in a hybrid setup, with an open vacation policy that lets you manage your time
• Personal growth - We invest in your L&D, with a budget available to each team member, dependent on their individual ambitions, development needs, and performance
• A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us closer

Diversity & Inclusion at QuantWare

We’re an ambitious company, not only for our goals but also to become an even more diverse and inclusive team. We know great candidates don't always follow a straight path, and we value diverse experience, perspectives, and ways of thinking. We know this helps us make better decisions, drives more innovation, and strengthens our culture.

As part of our recruitment process, candidates may be required to undergo pre-employment screening.