The internet has fundamentally transformed the way we share and process information, enabling unprecedented global connectivity. Today, we stand on the brink of an even greater revolution: the rise of quantum networks that can transfer and process quantum information alongside classical data. These networks promise to unlock a realm of possibilities, from unconditionally secure communication across vast distances to distributed quantum-enhanced sensing and the seamless integration of modular quantum computing. Such advancements are set to redefine what is possible in technology, science, and security, paving the way for innovations that could reshape industries and society as a whole.

At Quantum Network Technologies (Qunett), we aim to develop the fundamental infrastructure of the quantum internet. We are building scalable hardware solutions for quantum device connectivity that seamlessly integrate with existing infrastructure to enable deployable quantum networks. As a Quantum Research Engineer at Qunett, you will be at the forefront of this transformation, working with a team of experts to tackle the technical challenges of distributing quantum entanglement and scaling up quantum networks. This role offers a unique opportunity to make a lasting impact on the future of quantum technology.

About the Role:

We are seeking a passionate and innovative Quantum Hardware Engineer to join our diverse team. As part of Qunett, you will contribute to cutting-edge research and development in quantum networking and solid-state quantum systems. Your focus will include designing and implementing solutions to leverage nuclear spins in solid-state color centers for quantum memory and networking applications.

Key Responsibilities:

• Conduct research on the control and utilization of nuclear spins in solid-state color centers for quantum networking.
• Apply expertise in optics and photonics to design, validate, and test quantum systems.
• Collaborate with cross-functional teams to optimize system performance and integration.
• Build innovative solutions to achieve target performance metrics for entanglement rates and fidelity.
• Assist in technical development, from initial lab bench testing to fully packaged products.

Required Skills:

• 4+ years of research and hands-on laboratory experience in physics, quantum optics, or a related engineering discipline.
• Strong expertise in nuclear spin physics and solid-state color centers, such as SiV centers in diamond or alternative defects.
• Experience designing, assembling, and testing optical and spin control setups using lasers, cryogenic systems, and RF electronics.
• Proficiency in programming laboratory equipment and analyzing data for spin-based experiments.
• Strong problem-solving skills, with the ability to work independently and collaboratively in a fast-paced environment.
• Excellent organizational, communication, and documentation skills.

Preferred/Desired Qualifications:

• 6+ years of hands-on research experience with a PhD in Physics, Electrical Engineering, or a related field with a focus on solid-state quantum systems or nuclear spin physics.
• Expertise in quantum spin control techniques, including T1, Rabi, Ramsey, CPMG, and randomized benchmarking experiments.
• Skilled in designing and taping out RF and MW CMOS ICs optimized for low-temperature integration with quantum devices.
• Proficiency in using modeling software such as HFSS for electromagnetic simulations and circuit design.
• Knowledge of quantum repeater architectures and strategies for entanglement distribution.
• Experience on a team that has developed and shipped a product.

Why Qunett?

Joining Qunett means being part of a startup that is not just building technology but also creating the foundation for the quantum-enabled world of tomorrow. Our work is supported by strong partnerships with leading research institutions, and we are committed to fostering a collaborative environment where innovation thrives. If you are excited about the possibilities of quantum technology and eager to push the boundaries of what’s possible, we want to hear from you.