Software Engineer
Oxford Quantum Circuits
Software Engineer
Oxford Quantum Circuits
Develops superconducting quantum computers and services
Oxford Quantum Circuits · Reading, United Kingdom (Hybrid) · Full-time · Posted 2026-09-10
Workplace: hybrid
Department: Software Engineering
At OQC, we aren’t just theorising about the future; we’re building it. Born from a philosophy of bold innovation, we’ve successfully transitioned quantum computing from an academic dream into a commercial reality. The most exciting thing is that we’re just getting started and we’ve recently closed our £260 million Series C funding round – the largest fundraise ever completed by a quantum computing company in Europe.
The Purpose
As a Software Engineer in our Compiler and Runtime team, you’ll build the software that helps turn quantum computing into a production reality. You’ll primarily develop new compiler and runtime features, using Python, C++, LLVM and related toolchains, while also evolving and improving our existing codebase.
Your work will directly contribute to how OQC’s quantum computers are developed, operated and used.
The Role
You’ll join the Compiler and Runtime team and take ownership of software development across the full lifecycle – from understanding requirements and designing solutions through to implementation, testing and delivery.
This is a hands-on engineering role for someone who enjoys solving technically challenging problems. You’ll spend most of your time developing new functionality, alongside targeted work on legacy code, debugging complex issues and continuously improving the quality and maintainability of our software.
You’ll collaborate closely with other engineers and internal stakeholders, contribute to technical decisions, and share your expertise to raise engineering capability across the team.
What You'll Be Working On
What We're Looking For
The 'Nice-to-Haves'
Why Join OQC
You will join a world-class team at the forefront of the next computational era. We offer a culture of bold innovation, the chance to work with unique lab infrastructure, and the opportunity to see your work redefine the limits of computation.
Learn more about our benefits and positive work culture here: https://oqc.tech/company/careers-at-oqc/
Apply at Oxford Quantum Circuits
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Develops superconducting quantum computers and services
Oxford Quantum Circuits (OQC) is a UK quantum computing company that builds superconducting quantum systems using its Coaxmon architecture and offers Quantum Computing as a Service through cloud access and colocated data centers. Its products work by using superconducting qubits implemented with the Coaxmon design, allowing users to run quantum programs remotely via a cloud interface or at partner data centers, with plans for larger TITAN systems aimed at fault-tolerant computing. What sets OQC apart from competitors is its specific Coaxmon architecture and its focus on scaling up infrastructure across international locations, backed by a large Series C funding round and strategic investors, to push toward practical, fault-tolerant quantum computing. The company’s goal is to expand its global infrastructure and develop next-generation TITAN quantum systems to achieve fault-tolerant quantum computing at scale.
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