Full-Time
Quantum Control Engineer
Oxford Quantum Circuits
51-200 employees
QCaaS provider with superconducting qubits
No salary listed
Reading, UK
Hybrid
PhD
 Hardware Engineering (1) |
|---|
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- A PhD or equivalent professional experience in physics, quantum engineering, electrical engineering, applied mathematics, or a related discipline.
- Experience measuring or modelling quantum systems.
- Experience developing scientific software for experiment control, numerical analysis, or simulation.
- Strong scientific programming and data-analysis skills using Python or an equivalent language.
- A strong understanding of quantum mechanics and qubit control.
- Experience with numerical analysis, parameter estimation, experimental design, and optimisation.
- The ability to diagnose complex, system-level performance issues across hardware and software boundaries.
- Clear and concise scientific communication, including confident technical presentation skills.
- A collaborative, ownership-driven approach with strong problem-solving and prioritisation skills.
- Develop and experimentally validate high-fidelity single- and two-qubit operations.
- Design, optimise, and benchmark pulse shapes using quantum control, numerical optimisation, and experimental techniques.
- Characterise gate error mechanisms, including coherent error, leakage, crosstalk, drift, and control-chain distortion.
- Build robust experimental pipelines, data-analysis workflows, and performance benchmarks for quantum processors.
- Define calibration requirements and partner with Calibration Engineering and Calibration Operations to operationalise successful methods.
- Evaluate new devices with Processor Innovation, providing clear feedback on gate performance and processor behaviour.
- Transfer new control techniques into OQC’s production software stack, documenting methods, acceptance criteria, and evidence for technical handover.
- Experience working with superconducting qubits and microwave control systems.
- Experience developing, calibrating, or experimentally characterising quantum processors.
- Hands-on experience optimising single- or two-qubit gates through pulse-level control.
- Familiarity with randomised benchmarking, gate set tomography, or algorithmic benchmarking.
- Experience investigating crosstalk, drift, coherent errors, or signal-chain distortion.
- Experience transferring experimental methods into repeatable engineering or operational workflows.
- Knowledge of machine learning or numerical optimisation techniques applied to physical systems.
- Familiarity with control electronics, waveform generation, and microwave signal chains.
- Experience with quantum software frameworks such as Qiskit, PennyLane, or Cirq.
Oxford Quantum Circuits provides Quantum Computing as a Service (QCaaS) using superconducting qubits built on its Coaxmon architecture. Clients access quantum hardware through direct access, managed services, cloud platforms, or colocated data centers, enabling hosted computations and managed workflows without building their own systems. The company differentiates itself with its Coaxmon qubit design, enterprise focus, and its status as the UK’s first QCaaS platform, backed by significant funding and global expansion. Its goal is to broaden enterprise access to quantum computing to tackle complex problems in areas like climate modeling and AI, and to scale a global quantum hardware and services ecosystem.
Company Size
51-200
Company Stage
Series C
Total Funding
$503.8M
Headquarters
Reading, United Kingdom
Founded
2017
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Simplify's Take
What believers are saying
- Barcelona’s €92 million hub starts in Q4 2026 and adds 210 jobs.
- OQC says the Series C funds international expansion and deployed quantum infrastructure.
- OQC’s enterprise pipeline deepened with JPMorganChase as London’s first dedicated user.
What critics are saying
- OQC’s best system is 32 qubits; commercialization demands far larger fault-tolerant machines.
- TITAN targets 200 logical qubits by 2028, leaving a fragile three-year execution window.
- If enterprise revenue lags hardware burn, OQC faces dilution, layoffs, or shutdown.
What makes Oxford Quantum Circuits unique
- OQC’s Coaxmon superconducting architecture powers QCaaS across London, Tokyo, New York, and Spain.
- JPMorganChase and AMD chose OQC for London’s secure quantum-AI data center in June 2026.
- Bullhound Capital led OQC’s £260 million Series C, Europe’s largest private quantum round.
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↑ 1%Quantum computing firm OQC has completed a £260 million Series C funding round, positioning itself as one of the best-capitalised private quantum computing companies globally. Chief executive Gerald Mullally said the capital will enable OQC to expand internationally and build secure, scalable quantum infrastructure for enterprise and government customers. Mullally noted that recent public market activity, including Quantinuum's initial public offering, is helping build investor confidence in the sector. He described the developments as signalling a shift for quantum computing beyond research towards practical infrastructure. The funding will support OQC's technology roadmap, advancing its quantum processors and software platforms. Mullally indicated the company's strategy includes shaping the industry's next phase through technological innovation and strategic partnerships.
Oxford Quantum Circuits (OQC), a British quantum computing startup, has raised £260 million (approximately €300 million) in a Series C round, marking Europe's largest private funding for a quantum computing company. The oversubscribed round was led by Bullhound Capital. Founded in the UK, OQC develops superconductor-based quantum computers for data centres serving enterprises and public administrations. The company has already deployed systems across Europe, North America and Asia, including installations in the UK, US, Japan and Spain. The funding will accelerate international expansion and development of fault-tolerant quantum computing technologies. OQC targets sectors including finance, defence and security, which require advanced computing capabilities for data processing, complex optimisation and enhanced analysis. CEO Gerald Mullally said the market is shifting from technological promises towards concrete deployments addressing real needs.
Oxford Quantum Circuits (OQC), JPMorganChase and AMD have announced a research collaboration centred on a new quantum AI data centre in London. JPMorganChase researchers will test quantum and hybrid quantum-classical computing applications in a secure enterprise environment to address complex financial services challenges. The collaboration aims to investigate how quantum-enhanced AI models can accelerate algorithm discovery for financial use cases. JPMorganChase will be the UK platform's first dedicated user, with full operations expected within 12 months. The platform integrates quantum hardware within a secure enterprise compute environment, enabling JPMorganChase to test hybrid workflows against financial services operational standards. This week, OQC closed an oversubscribed £260 million Series C funding round, Europe's largest private funding round for a quantum computing company.
Oxford Quantum Circuits has raised £260m ($350m) in a Series C round, marking the largest funding for a private quantum computing company in Europe. The round was led by Bullhound Capital, with participation from British Business Bank, European investors including Fynveur and Cofides, and US and Singapore-based firms. The UK-based scaleup builds quantum computers using superconducting qubits and offers them as a service through partner data centres in London, Tokyo and New York. Customers buy computing time rather than purchasing systems outright, an approach particularly attractive to regulated sectors like finance and defence requiring secure data storage. The funding will support geographic expansion and development of next-generation systems. OQC's current most advanced computer has 32 qubits, with CEO Gerald Mullally stating the goal is building systems for the "commercial era of quantum".
UK-headquartered hardware developer Oxford Quantum Circuits has finalized an oversubscribed £260 million ($350 million) Series C funding round, representing the largest private capital raise for a quantum computing entity in European history. Led by Bullhound Capital, the financing loop includes public and private institutional tranches from the British Business Bank (contributing a £100 million anchor commitment), Fynveur (advised by Invus), COFIDES, Mastercard, IHAG, RCM Private Markets Fund (managed by Rokos Capital Management), Alpha Edison, Fulcrum Asset Management, Pentland Ventures, Magdalen College Oxford, Adaptive Capital Partners, Firgun Ventures, 18 West, and Oxford Capital. Existing investors, including Oxford Science Enterprises, SBI, Chevron Technology [...]