Senior Quantum Photonics Engineer

Senior Quantum Systems Engineer

Paris, France

This role sits within a high performing engineering team to accelerate the development of next-generation quantum processing units (QPUs). This role will focus on integrating photonic and cryogenic RF technologies to enhance fault-tolerant quantum systems, bridging quantum and classical computing architectures.

Reporting to senior leadership, you will play a pivotal role in productizing quantum hardware, de-risking fabrication processes, and expanding our intellectual property portfolio.

Key Responsibilities

• Design and deploy FPGA-based microwave pulse-generation and state-measurement platforms optimized for millikelvin environments, enabling low-latency classical-quantum feedback.
• Develop continuous-wave wavelength-division multiplexing (CW-WDM) photonic links for chip-to-chip and cryo-to-room-temperature data paths, aligning electrical, optical, and control software layers.
• Lead the productization of photonic-quantum systems by implementing mature RF-photonics co-design methods and hardened silicon flows (e.g., 22 nm mixed-signal processes).
• De-risk upcoming tape-outs by leveraging established foundry relationships and optimizing fabrication workflows.
• Integrate network-on-chip (NoC) architectures and AI/ML co-processors to complement quantum networks, supporting hybrid quantum-classical systems.
• Drive the intellectual property pipeline by authoring patents and monetizing architectural innovations.
• Collaborate with multidisciplinary teams (quantum physicists, microwave engineers, software developers) to advance QPU scalability and performance.
• Mentor junior engineers and contribute to a culture of innovation and continuous learning.

What We’re Looking For

• Advanced degree (PhD or Master’s) in Electrical Engineering, Physics, Quantum Engineering, or a related field.
• 5+ years of experience in quantum computing, high-performance computing (HPC), or photonic systems, with a focus on fault-tolerant architectures or superconducting qubits.
• Proven expertise in FPGA-based microwave control systems for cryogenic environments.
• Hands-on experience with CW-WDM photonic design rules, PIC-control firmware, or RF-photonics co-design.
• Familiarity with mixed-signal semiconductor processes (e.g., 22 nm) and foundry operations.
• Track record of authoring patents or driving IP development in technical domains.
• Preferred Skills:
• Experience integrating quantum systems with classical HPC stacks, including NoC or AI/ML co-processors.
• Established relationships with global foundry partners or a demonstrated ability to navigate semiconductor fabrication ecosystems.
• Knowledge of quantum error correction or superconducting qubit technologies (e.g., cat qubits).
• Strong project management skills, with experience leading cross-functional teams or implementing organizational playbooks.
• Personal Attributes:
• Innovative problem-solver with a passion for pushing the boundaries of quantum technology.
• Collaborative team player comfortable in a multicultural, fast-paced startup environment.
• Proactive communicator able to translate complex technical concepts for diverse audiences.
• Commitment to fostering diversity and inclusion in the workplace.