Optical Integration Engineer
Quandela
Optical Integration Engineer
Quandela
Photonic quantum computers and single-photon sources
Quandela · Palaiseau, France · Full-time · Posted 2026-09-28
Workplace: on_site
Department: Products - Semiconductor Sources Production
Quandela stands as a global leader in quantum computing, driven by groundbreaking technology and a strategic vision for scaling quantum solutions. The company’s unique ability to offer both hardware and software solutions, along with its commitment to build energy efficient quantum processing units that scale, positions it to play a key role in the next wave of innovation, and in many strategic and sovereign industrial sectors.
With a team of more than 140 people, we develop our own hardware and software stack, from semiconductor quantum emitters and photonic processors to quantum control systems and quantum algorithms.
Our ambition is to build large-scale fault-tolerant quantum computers capable of solving problems beyond the reach of classical computation using Quandela's cutting-edge quantum dot technology.
Achieving this vision requires not only advances in photonic quantum computing, but also the development of scalable spin-photon interfaces, distributed entanglement capabilities and future SPOQC (Spin-Optical Quantum Computing) architectures that will enable modular and fault-tolerant quantum systems.
Join Us at the Forefront of Quantum Computing Innovation 🚀
Join Quandela’s Source Production team to work on the fiber pigtailing of single-photon sources.
The role focuses on developing, improving and operating highly precise fiber coupling methods for photonic quantum devices.
The role is part of the Source Production team, which currently includes 11 people across fabrication, fiber pigtailing and optical characterization. The role is part of the pigtail team, currently composed of one person, and works in close interaction with the fabrication and characterization teams.
The objective is to improve the reliability, reproducibility and productivity of the pigtailing process, from prototype development to production-ready methods.
Key responsibilities
Integrating mircro-structure to the PIC waveguide edge coupling
Perform high-precision fiber coupling between single-mode fibers and individual micropillars, with alignment precision below 100 nm
Desired profile
Required
Nice to have
Soft skills
(This process is provided for guidance only and may evolve depending on the roles)
At Quandela, we believe that the strength of our team is the plurality of experiences, perspectives, and journeys. We are committed to building a respectful, inclusive, and welcoming work environment. All applications are welcome.
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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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