Quantum Optics Scientist
Quandela
Quantum Optics Scientist
Quandela
Photonic quantum computers and single-photon sources
Quandela · Palaiseau, France · Full-time · Posted 2026-11-10
Workplace: on_site
Department: Research - Semiconductors
Quandela is a European deeptech scale-up developing modular, scalable and energy-efficient photonic and spin-optical quantum computers, accessible through the cloud and on-premises.
With over 140 employees, we develop our own hardware and software stack, from semiconductor quantum emitters and photonic processors to quantum control systems and algorithms.
Our ambition is to build large-scale, fault-tolerant quantum computers, combining quantum dot technologies, scalable spin-photon interfaces and distributed entanglement within future Spin-Optical Quantum Computing (SPOQC) architectures.
You will join Quandela's Semiconductor Optics Team, bringing together expertise in quantum optics, spin physics, semiconductor technologies and quantum information.
Your focus will be to contribute to spin-based quantum experiments, develop optical control and characterization techniques, and support the demonstration of photon-mediated spin-spin entanglement for future quantum computing architectures.
We are looking for an experimental scientist with a strong foundation in quantum optics or spin physics, particularly through hands-on work with quantum emitters, optical spectroscopy or single-photon experiments.
With several experimental building blocks still under development, you'll have the opportunity to explore challenging scientific questions, develop your expertise alongside experienced scientists and engineers, and progressively take ownership of experimental activities contributing directly to our technology roadmap.
Spin-based quantum experiments:
Experimental development and scientific investigation:
Technology development and collaboration:
_During your first 3 months:
_You will become familiar with Quandela's experimental platforms, optical spectroscopy and spin-control techniques, contributing to ongoing measurements and experimental activities alongside the team.
_Within 6 months:
_You will take ownership of defined experimental tasks, contribute to setup optimization and protocol development, and actively participate in theory-to-experiment feedback loops.
_Within 1 year:
_You will independently drive specific experimental investigations, contribute to distributed entanglement demonstrations and help advance future spin-based architectures.
We are looking for an early-career experimental researcher combining a strong scientific foundation, hands-on experience with quantum optical systems and the motivation to develop expertise in spin-based quantum technologies.
Must-have
Important, but you can grow here
We primarily target candidates completing their PhD or in the early stages of their postdoctoral or R&D career, with a strong experimental background and an interest in spin-based quantum systems.
Direct experience with spin-spin entanglement or semiconductor spin qubits is not required. What matters is your experimental foundation, ideally involving individual quantum systems, optical spectroscopy or coherent control techniques, and your ability to progressively take ownership of scientific activities.
Previous industrial experience is not required.
Location of the position : Based at the IPVF campus in Palaiseau, within the Paris-Saclay research ecosystem.
At Quandela, you'll work on challenging scientific questions while helping turn experimental advances into technologies for future quantum computers.
Our spin-based platforms are still evolving, offering opportunities to develop new skills, contribute original ideas and grow alongside experienced scientists working on ambitious quantum technologies.
If you're excited by the idea of combining experimental quantum research with tangible technological impact, we'd love to hear from you, even if your background doesn't match every requirement.
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Quandela builds full-stack photonic quantum computers in France, including on-premises MosaiQ hardware and cloud access to its processors. It uses semiconductor quantum-dot single-photon sources to create bright, indistinguishable photons that act as optical qubits, with Perceval, an open-source Python framework, for simulating and programming photonic circuits, and Prometheus, a standalone single-photon source for research labs. The company differentiates itself by offering end-to-end hardware, software, and services—from production in its own facilities to cloud access and an acceleration program that guides clients from use-case exploration to hardware delivery. Its goal is to help clients achieve practical quantum advantages across industries such as cybersecurity, energy, finance, logistics, chemistry, and pharmaceuticals.
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