Senior Quantum Software Engineer - United Kingdom

We are working exclusively with a fast-growing quantum computing company in central London. Their systems are already running with customers in data centres around the world, and they need someone to own their developer software: the SDK, APIs, libraries and integrations that researchers and companies use to build hybrid quantum-classical applications.

The role

  • Own the SDK roadmap, manage the codebase and coordinate new features
  • Lead integrations with tools such as NVIDIA CUDA-Q, PyTorch and JAX
  • Write the documentation, tutorials and examples that help users get going
  • Support customers with escalations and root-cause analysis
  • Build software demonstrations for commercial and pre-sales conversations

You’ll bring

  • Extensive experience building and maintaining production software libraries, SDKs or developer tools
  • Excellent Python, with modern practice: testing, CI/CD, packaging and code review
  • End-to-end ownership of a codebase with multiple contributors
  • Clear documentation and the ability to work directly with users
  • A master’s or PhD in physics, computer science or similar, or equivalent experience

Nice to have: GPU/HPC experience (CUDA, accelerated simulation), quantum frameworks (Qiskit, PennyLane, CUDA-Q), open source maintainership and community building, or AI/ML integration. Quantum experience is a plus, not a requirement, but you’ll need a genuine interest in it.

Working pattern: Four days a week in the central London office.

Interested? Apply now for a confidential chat.

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