Application Support Engineer Quantum Algorithms H/F - 91

Quandela is a European start up that provides photonic quantum computers that are modular, scalable, energy-efficient and accessible both on the cloud and on premise.

Our team of 85 employees, specialises in the development of both software and hardware solutions for a variety of quantum applications. We offer a wide range of services, from developing the most efficient and brightest single photons sources, to creating algorithms for quantum computers and providing cloud quantum computing solutions.

Quandela plays a pivotal role as a strategic partner in the quantum transformation of industrial sectors such as energy, finance, pharmaceuticals, and transportation. Furthermore, we are esteemed collaborators within the academic and research community.

- Following a successful €50 million fundraising in 2023, we are now scaling up our commercial ventures alongside our ongoing research endeavors.
- Quandela has been chosen to participate in the French Tech 2030 program, which aims to bolster French companies pioneering groundbreaking innovations.About Quandela:
Quandela is a French deeptech company building Europe's first general-purpose photonic quantum computers. Our machines are already available through the cloud, and now also delivered on-premise.

Beyond hardware, we develop the full software stack :

- Perceval, our open-source simulation library,
- Merlin, our platform to program and run quantum algorithms,
- Cloud and on-site deployment for academic and industrial clients.

In 2024, as part of the EuroQCS-France consortium (GENCI & CEA), Quandela is giving the European research community early remote access to a 6-qubit photonic quantum computer. This precedes the 2025 on-site deployment of Lucy, our 12-qubit system at CEA's TGCC, marking a milestone that combines HPC and quantum in one hybrid infrastructure.

This creates new needs: researchers will start using our quantum systems - from algorithms to QPU infrastructure - both remotely and on site, and they expect immediate, reliable, high-level support.
That's why we are building a dedicated support cell.
Your role will focus on the algorithms side - making sure codes and workflows actually run, feedback loops into R&D/Product. You will be accompanied by a QPU-focused counterpart to cover the full stack.

Why this role matters?
You'll be the single point of contact for GENCI/CEA researchers, on the algorithms side, ensuring that Europe's first photonic quantum computer is usable, reliable, and impactful from day one.

This role is strategic and highly visible - for Quandela, for CEA, and for the French quantum ecosystem. It's about enabling pioneering algorithms to become real quantum applications on a national-scale system.