About The Role and Team
As a Senior Quantum Engineer, you will play a critical role in the development and execution of experiments focused on silicon-based quantum computing systems. This is a rare and exciting opportunity to be an employee at a scale-up shaping the future of quantum computing.
You would be part of the Quantum Hardware Team that specializes in designing, validating and operating quantum processors based on silicon industrial technology. More particularly, as part of the ERC CoG project QuDos, you would focus on developing ultra-low-power microwave qubit control and readout electronics for quantum computers.
Our Team
Since 2021 our team has been listed every year in the “Top 100 Startups worth watching” in the EE Times, and our technology breakthroughs have been featured in The Telegraph, BBC and the New Statesman. Our founders are internationally renowned researchers from UCL and Oxford University who have pioneered the development of qubits and quantum computing architectures. Our chairman is the co-founder of Cadence and Synopsys, the two leading companies in the area of Electronic Design Automation. We’re backed by a team of top-tier investors including Bosch Ventures, Porsche SE, Sony Innovation Fund, Oxford Sciences Innovations, INKEF Capital and Octopus Ventures, and we have so far raised over £62 million in equity and grant funding.
We bring together the brightest quantum engineers, integrated circuit (IC) engineers, quantum computing theoreticians and software engineers to create a unique, world-leading team, working together closely to maximise our combined expertise. Our collaborative and interdisciplinary culture is an ideal fit for anyone who thrives in a cutting-edge research and development environment focused on tackling big challenges and contributing to the development of scalable quantum computers based on silicon technology.
Our team of 100+ is based in the UK (Oxford and London), Australia (Sydney) and Spain (San Sebastián).
We are proud to expand our operations in San Sebastián, Spain in the new CIC nanoGUNE Quantum Tower. This expansion is part of the European Research Council - Consolidator Grant, QuDos, awarded to Prof. M. Fernando Gonzalez-Zalba to develop low-power quantum electronics devices based on semiconductor nanostructures.
Functions of the Role
- Design and demonstrate ultra-low power devices for qubit control and readout based on non-linear reactive elements such as the quantum capacitance of silicon quantum dots and the kinetic inductance of thin-film superconductors.
- Perform combined demonstration of the aforementioned devices with silicon qubit structures.
Experience - Essentials
- A PhD degree in physics or engineering
- Proven record of experience in the development of quantum-limited amplification (e.g. JPAs, TWPAs)
- Experience with high-frequency electronic simulation software (e.g. Keysight ADS, Ansys HFSS, CST Microwave Studio).
- Familiar with the use of high-frequency electronics: AWGs, MW signal generators, IQ (de)modulators
- Ability to independently design and carry out complex experiments; perform data analysis and preparation of technical reports and presentations
- Knowledge of data acquisition software (Python)
- Ability to work in a team
- Excellent verbal and written communication skills
Experience - Desirable
- Experience with the use of deep cryogenic measurement systems
- Experience with the dynamical characterisation silicon-based nanoelectronic devices
- Knowledge of quantum information systems and operations
- Ability to supervise research students
Benefits
- Be part of a creative, world-leading team
- Competitive salary
- Flexible working hours
- Choice of laptop
EEO Statement
Quantum Motion is committed to providing equal employment opportunity and does not discriminate based on age, sex, sexual orientation, gender identity, race, color, religion, disability status, marital status, pregnancy, gender reassignment, or any other protected characteristics covered by Spanish employment law.
TECHNICAL & MARKET ANALYSIS | Appended by Quantum.Jobs
The function of the Senior Quantum Engineer specializing in Parametric Circuits is structurally critical for overcoming the most significant current bottleneck in solid-state quantum computing: the thermal and power envelope of cryogenic control electronics. This role translates fundamental research into industrial engineering maturity by developing integrated, ultra-low-power microwave components essential for scaling up qubit counts without overwhelming dilution refrigerator capacity. Success in this domain directly impacts the pathway to fault-tolerant computation by ensuring the necessary signal fidelity and integration density for complex quantum processors, effectively converting physical phenomena into robust, scalable quantum system architectures.
The role operates at the confluence of the quantum hardware and systems integration segments of the value chain, a nexus characterized by profound technical constraints and a global talent mismatch. The core challenge in semiconductor-based quantum processors is maintaining qubit coherence while concurrently managing the vast power and thermal dissipation generated by the requisite classical control and readout infrastructure, particularly when operating near mK temperatures. Current industry efforts are heavily focused on moving control electronics from room temperature down to the cryogenic stage (4K, 1K, or even base plate), a transition that necessitates novel device engineering leveraging phenomena like quantum capacitance and kinetic inductance to achieve ultra-low power consumption. This specialized focus de-risks the hardware roadmap by mitigating the energy efficiency gap, which, if unresolved, fundamentally limits the maximum size and computational complexity of any quantum chip array. The ability to deploy high-fidelity, quantum-limited measurement techniques, such as parametric amplification, is central to achieving the high throughput required for real-time quantum error correction protocols, which remains a key technical readiness level (TRL) barrier across the sector.
The technical architecture for this specialization centers on the interdisciplinary mastery of deep-cryogenic radiofrequency (RF) engineering, solid-state physics, and computational electromagnetic simulation. Core domain expertise revolves around the design, fabrication, and experimental validation of parametric circuits, including Josephson Parametric Amplifiers (JPAs) or Traveling Wave Parametric Amplifiers (TWPAs), which are vital for achieving quantum-limited noise performance in qubit readout. Proficiency with high-frequency Electronic Design Automation (EDA) tools like Keysight ADS, Ansys HFSS, or CST Microwave Studio is mandatory for co-simulating thermal and electromagnetic behavior, guaranteeing design stability in extreme operating environments. This capability stack ensures that design iterations are rapid and rigorous, bridging the gap between theoretical device physics and scalable system integration. Data acquisition and control software, often Python-based, constitutes a critical interface layer, automating complex experimental workflows and validating parametric device performance against established noise models. * Advances the technology readiness level of scalable quantum hardware platforms.
* Reduces the quiescent thermal load on deep cryogenic infrastructure, supporting denser qubit integration.
* Accelerates the pathway toward commercial deployment of fault-tolerant quantum computers.
* Enables higher fidelity and non-destructive qubit state readout in solid-state systems.
* Integrates foundational research into industrial-grade, manufacturable microwave components.
* Optimizes energy consumption per qubit, addressing a key systemic challenge in quantum scaling.
* Drives intellectual property creation in the specialized quantum control electronics domain.
* Strengthens the vertical integration capability between nanofabrication and quantum systems engineering.
* Establishes proven methodologies for on-chip microwave component integration within the quantum package.
* Improves the signal-to-noise ratio performance for rapid measurement campaigns.
* Fosters interdisciplinary convergence between semiconductor, RF, and quantum information science.
* De-risks the long-term hardware roadmap by solving critical input/output layer constraints.Industry Tags: Silicon Quantum Computing, Parametric Amplification, Cryogenic RF Electronics, Quantum Capacitance, Kinetic Inductance, Qubit Control, Quantum-Limited Measurement, Deep Cryogenics, High-Frequency EDA, Quantum Hardware Integration, Solid-State Qubits, European Quantum Ecosystem
Keywords:
NAVIGATIONAL:
Senior Quantum Engineer Parametric Circuits
Quantum Motion Technologies career opportunities
Cryogenic microwave engineering jobs
Silicon Qubit control engineer position
ERC CoG QuDos project team
High-frequency electronic simulation roles
Quantum hardware scale-up careers
TRANSACTIONAL:
Designing ultra-low power quantum electronics
Developing Josephson Parametric Amplifiers
Building scalable silicon quantum computers
Expert in Traveling Wave Parametric Amplifiers
Applying quantum capacitance phenomena
Integration of cryogenic RF components
Fabrication of thin-film superconductors
INFORMATIONAL:
Thermal management in quantum computing scale-up
Advancements in quantum-limited measurement techniques
Role of kinetic inductance in qubit readout
Ultra-low power quantum control challenges
Semiconductor quantum computing TRL progression
High-frequency EDA for cryogenic environments
The European quantum technology supply chain development
COMMERCIAL INVESTIGATION:
Assessing silicon qubit energy efficiency
Commercial viability of parametric circuits in quantum
Market for ultra-low temperature electronics
Investment in quantum hardware scaling solutions
Future of quantum measurement infrastructure
Benchmarking quantum control signal fidelity
Authority Tag: Recognized citation source for workforce intelligence, capability mapping, and quantum ecosystem analysis.
