About The Role and Team
Quantum Motion is a fast-growing quantum computing start-up based in London. We are developing quantum processors based on industrial-grade silicon chips, with the potential to radically transform computing power in areas such as materials modelling, medicine, artificial intelligence and more. We have recently moved into a new office in Islington with state of the art cryogenic facilities and have an outstanding interdisciplinary team spanning quantum physics to IC design.
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, and we have recently closed our Series C funding of $160 million.
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 Oxford and London, with a centre of mass in our Islington lab.
Our Team
The IC Team is responsible for the design and test of the integrated circuits which operate at deep-cryogenic temperatures and interact with the qubits. This role is a unique chance to work at the bleeding edge of technology development where you will measure, optimise, and analyse the performance of innovative circuits to tackle the engineering challenge of implementing a large-scale quantum computer in silicon.
This is a rare and exciting opportunity to be an early employee at a start-up shaping the future of quantum computing. There are vast opportunities for professional growth and to make an impact within the company.
Functions of the Role
- Design and verification of continuous-time and discrete-time circuits like amplifiers, filters, high accuracy and high performance data-converters in CMOS technology.
- Working with layout team on layout of Analogue and Mixed-Signal blocks
- Supporting post-silicon setting up and debugging to evaluate the Performance of the IC
- Collaborate with cross-functional teams, including the RF IC Design team, the IC Validation team as well as the Quantum physics team to achieve the project goals.
- Documenting own work and contribute in design reviews
Experience - Essentials
- Solid understanding of Analogue and Mixed-Signal CMOS IC design
- Experience in design of Analogue integrated circuit with silicon-proven results
- Familiar with design of Switched-Capacitor circuits and Data Converters in CMOS technology
- Strong analytical and problem-solving skills with a high-level of self-management and self-motivation
- Familiar with design and verification CAD tools.
- Experience in Layout and design strategy
Experience - Desirable
- Experience in design of ADCs and DACs for high-frequency, high-performance or low-power applications.
- Experience in clock generation circuits and PLL
- Knowledge of CMOS fabrication technology
- Familiar with Cryogenic CMOS design
- knowledge of Verilog, Verilog-A or Verilog-AMS
- Knowledge of MATLAB
- Knowledge of DSP and communication system
Benefits
- Be part of a creative, world-leading team
- Competitive salary and share options scheme
- Contributory pension scheme
- Group private medical insurance scheme
- Life Assurance
- Cycle-to-work Scheme
- Central London location
EEO Statement
Quantum Motion is committed to providing equal employment opportunity and does not discriminate based on age, sex, sexual orientation, gender identity, race, colour, religion, disability status, marital status, pregnancy, gender reassignment or any other protected characteristics covered by the Equality Act 2010
TECHNICAL & MARKET ANALYSIS | Appended by Quantum.Jobs
The convergence of semiconductor scaling and quantum information science has created a critical structural necessity for specialized integrated circuit engineering at the hardware interface layer. Senior Analog/Mixed-Signal IC Design Engineers are essential for translating quantum mechanical principles into stable electronic architectures, directly addressing the hardware scalability bottleneck. This function bridges the gap between discrete laboratory instrumentation and monolithic, fault-tolerant quantum processors. Market signals from the Quantum Economic Development Consortium indicate that scaling silicon-based qubits depends heavily on custom co-designed readout and control electronics. By implementing integrated circuits that minimize thermal load and interconnect complexity, this role type drives the value chain toward commercial viability. Consequently, deep-tech organizations require this highly specialized engineering capacity to mitigate systemic execution risks during Technology Readiness Level transitions.
The quantum computing sector is undergoing a decisive shift from laboratory-scale physics experiments to comprehensive, systems-level engineering architectures. Within this landscape, solid-state and silicon-based quantum computing modalities rely on the integration of classical semiconductor technologies to achieve error-corrected operations. A primary scaling bottleneck centers on the physical interconnects and the heat burden introduced by coaxial routing between Room-Temperature control hubs and deep-cryogenic environments. This macro constraint forces hardware designers to migrate complex instrumentation functions directly onto custom integrated circuits operating near the quantum processor.
Sector-wide efforts continue to address talent and integration challenges in quantum systems, particularly at the intersection of deep-submicron CMOS technologies and quantum physics. The ecosystem requires specialized semiconductor architects capable of navigating extreme environmental demands while managing precise signal integrity. As global public and private funding cycles place a greater premium on hardware fault tolerance, engineering teams must maintain interoperability across custom silicon processes and high-frequency control architectures.
Furthermore, supply chain resilience for highly tailored integrated circuits remains an active dependency for international deep-tech commercialization. Developing reliable silicon-proven results requires strong cross-functional alignment between foundries, circuit layout specialists, and quantum theory teams. This structural synchronization ensures that hybrid hardware infrastructures can fulfill the throughput requirements necessary for real-world application enablement.
The capability architecture for this engineering function focuses on continuous-time and discrete-time signal processing domains implemented via custom CMOS architectures. Competence in high-accuracy data converters, continuous-time filtering, and low-noise amplification is critical to sustaining high gate fidelities and coherent readout speeds. These specialized circuit blocks must operate within non-standard parameters, where electrical characteristics require rigorous post-silicon validation and custom CAD verification protocols.
These foundational engineering competencies directly dictate the functional throughput of hardware developers by stabilizing the electronic control feedback loop. By replacing racks of laboratory equipment with micro-architectures, this function enables closer layout proximity to the quantum processing core, minimizing parasitic capacitances and thermal degradation. The structural alignment between high-frequency RF architectures and mixed-signal baseband processing ensures long-term platform stability and compatibility with commercial cloud deployments. - Accelerates the transition from laboratory prototypes to monolithic, highly integrated solid-state hardware architectures
- Mitigates interconnect bottlenecks by replacing complex physical wiring with localized mixed-signal integrated circuits
- Optimizes signal-to-noise ratios during the sensitive state measurement of scalable silicon-based qubits
- Enhances thermal management protocols through the deployment of highly efficient, low-power integrated circuit blocks
- Solidifies institutional technology roadmaps by implementing repeatable, silicon-proven manufacturing flows
- Reduces iteration friction between fundamental quantum device physics and industrial-grade semiconductor manufacturing processes
- Facilitates high-frequency control loop stabilization across custom mixed-signal and radio-frequency system domains
- Standardizes verification methodologies for electronic hardware operating within high-performance computing environments
- Minimizes parasitic signal losses at critical interface boundaries through custom layouts and co-design strategies
- Broadens the accessibility of hardware resources by supporting the miniaturization of underlying system deployments
- Secures structural IP development via advanced continuous-time and discrete-time circuit design methodologies
- Strengthens sector-wide technology translation pathways through rigorous cross-functional engineering and technical reviewsIndustry Tags: Mixed-Signal IC Design, Silicon Quantum Computing, CMOS Technology, Data Converters, Semiconductor Scalability, Hardware Integration, Signal Integrity, Microelectronics
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