Quandela is a European deeptech scale-up building modular, scalable and energy-efficient photonic quantum computers.
With more than 140 people, we develop our own hardware technologies — from single-photon sources to photonic integrated circuits (PICs) — and make them accessible via cloud and on-premise systems.
At the core of our processors are Photonic Integrated Circuits (PICs): compact optical chips that route and manipulate single photons to perform quantum operations at scale.
You will join the Integrated Photonics team in Massy, composed of senior engineers, PhDs, and research interns working across design, characterization, and packaging of our PICs.
The team owns the full design cycle of our photonic circuits — from simulation and layout to foundry collaboration and performance feedback. Fabrication is outsourced, but simulation depth, architectural choices, and design-for-manufacturing decisions are fully internal.
You will design and optimize key building blocks of our PIC platform, translating system requirements into robust and manufacturable layouts that support the evolution of our processors. Working closely with characterization, you will iteratively refine your designs based on fabrication variability and experimental feedback.
The coming year is strongly design-driven, with a focus on improving robustness against fabrication variability, increasing integration density, and preparing architectural evolutions for future scalable quantum processors.
What you design today directly shapes the scalability, stability, and performance of tomorrow’s photonic quantum processors.
Your work directly impacts how efficiently our circuits scale, how resilient they remain under fabrication variability, and how quickly research concepts become reliable hardware.
As Quandela grows, this role helps shape not only components, but also the design methodologies and standards that will support larger-scale and fault-tolerant quantum architectures.
0/3 months → Understand our simulation environment and reproduce existing component designs.
3–6 months → Lead a full simulation-to-layout cycle on a defined component.
6–12 months → Contribute to design improvements and take part in next-generation component development, supporting the transition toward higher-speed reconfiguration regimes and tighter performance constraints.
Longer term → Take ownership of architectural blocks or contribute to defining structured design methodologies as our PIC platform evolves toward larger and fault-tolerant systems.
We welcome strong PhD profiles as well as engineers with a few years of experience.
What matters most is simulation autonomy, strong physical intuition, and the ability to turn models into robust devices while thinking at system scale.
Join one of the fastest-growing quantum hardware companies in Europe and contribute directly to the evolution of scalable photonic quantum processors.

Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.