105 jobs for “quantum software developer”
Rigetti Berkeley, United States US$220,000 – US$250,000 pa
Lead a cross-functional software engineering team building platforms for quantum device design, chip fabrication workflows, physics-informed data analysis, and QPU characterization. The role is hands-on, spanning team management, architecture, and data pipeline work with Python, AWS, and streaming tools, while partnering closely with quantum hardware, fabrication, and research teams.
IonQ Oxford
This role involves leading the delivery of the Systems Software roadmap for IonQ's quantum computers, managing dependencies between hardware, science, and systems integration teams. The Staff Technical Programme Manager will work across multiple engineering teams, ensuring capacity is spent by decision, not default, and coordinating with stakeholders to turn research-grade systems into dependable products.
Rigetti Berkeley, United States US$175,000 – US$200,000 pa
Lead experimental programs to characterize, calibrate and optimize two-qubit gates on tunable-coupler superconducting processors, isolating error sources such as leakage, crosstalk and decoherence. Develop pulse shaping, dynamical decoupling and automated calibration methods that scale across hundreds of qubit pairs, feeding findings back into device design and fabrication.
Quantinuum London
Registering interest for ad-hoc internship positions lasting 3-6 months, mostly focused on specific projects or client collaborations rather than a formal summer programme. Work areas span quantum software development, chemistry, machine learning, algorithms, cybersecurity/encryption and hardware, with candidates ideally holding or pursuing a Master's or PhD.
Infleqtion Kidlington
Designs, implements and optimises quantum algorithms for simulation, optimisation and hybrid quantum-classical workloads, working with hardware, control and research teams to turn theory into executable applications. Deploys software optimisations to the Superstaq cloud platform using industry-grade engineering practices, supports customers, and contributes to research publications and commercial proposals.
Infleqtion Kidlington
Designs, analyses and implements fault-tolerant architectures for scalable quantum computation, developing error-correcting codes, decoders and fault-tolerant gate constructions tailored to neutral atom hardware. Works with hardware, control and compiler teams to model noise, optimise syndrome extraction and define logical performance metrics, bridging QEC theory and experimental implementation.
PQShield Remote (within the countries we operate from); UK, France, Netherlands, Spain, or Belgium. Some travel to our offices will be required from time-to-time
Lead a cryptographic software IP team, owning the full development lifecycle from architecture and planning to testing and customer delivery. Combines hands-on embedded C expertise with line management, hiring, mentoring and cross-team strategy, working on post-quantum cryptography and RISC-V with hardware and vulnerability teams.
KO2 Embedded Recruitment Solutions Abingdon £65,000 – £75,000 pa
A technical leadership role in an established backend team building Modern C++ (C++17) software on Debian Linux that controls scientific instruments, coordinating pumps, valves, sensors and gauges. You own APIs used by the web GUI and customer scripts, write Python automated tests, run design reviews, and mentor less experienced engineers while working with scientists and product managers.
Arqit Belfast
Builds horizontally scalable, mission-critical enterprise software in a fast-moving product team where code ships to customers within weeks. Works across hybrid cloud IaaS/PaaS architectures using Java, Kotlin, Rust, Python or C++, embedding AI tooling across the development lifecycle, mentoring junior engineers and monitoring production performance.
Quantinuum London
Develops novel quantum algorithms in computational topology and geometry, characterising resource requirements and noise-robustness, then implementing and optimising them on Quantinuum's quantum hardware using error mitigation and error correction. Works across the full quantum computing stack with hardware, QEC and software teams, and with academic and industry partners on quantum topological data analysis use cases.
PsiQuantum Warrington £31,200 – £56,160 pa
Interns in the optical architecture group work at the interface of hardware, manufacturing and quantum architecture, prototyping software to control and simulate optical networks inside photonic quantum computers. They apply quantum information theory, network design and optimisation to improve designs, simulate and benchmark protocols, and document results. Placements run 3-6 months on a rolling basis, with a mix of analytical and programming work.
Pasqal London
Develops and benchmarks quantum error-correcting codes and fault-tolerant protocols tailored to neutral-atom hardware, including decoder design, logical error models and error budgets. Builds and maintains QEC simulation and emulation tools, analyses experimental data, and provides QEC-driven inputs to future QPU architecture design. Involves writing technical reports and scientific articles and representing the company at international conferences.
Universal Quantum Haywards Heath
Designs and simulates quantum error correction protocols, tailoring them to hardware strengths and characterising physical qubit noise profiles. Performs resource estimation for large-scale applications and advises on hardware and software control choices to optimise error correction performance in the near and far term.
Universal Quantum Haywards Heath
Operate ion-trap quantum computing hardware, developing quantum control protocols for ion shuttling and quantum gates. Run calibration, optimisation and characterisation procedures, and build theoretical models and simulations to compare measurements with predicted quantum dynamics. Works within a multidisciplinary team of software, electrical, physics and quantum engineers.
IonQ Oxford
Validates and optimises trapped-ion quantum computers, prototyping coherent control and cooling schemes, calibrating and benchmarking qubit gates, and validating emerging trap technologies with integrated electronics and photonics. Involves coding and debugging experiments in Python or Rust and documenting findings within a fast-moving UK science team.
