Quantum Device Theorist

About us

We are at the forefront of advancing quantum and superconducting technologies, working on cutting-edge research and development to fabricate superconducting chips. Our mission is to innovate and push the boundaries of chip fabrication while fostering a collaborative and forward-thinking work environment.

Role Overview

We are seeking a highly skilled and independent Quantum Device Theorist to join our qubit design team. The ideal candidate will bring deep quantum-mechanical and quantum-information expertise into the design of our superconducting quantum processor, building the Hamiltonian-level models that determine how our qubits, couplers, readout, and reset behave, and turning them into next-generation design decisions. You will work hand in hand with our RF/EM design engineers, complementing and supporting their electromagnetic simulations with quantum models. This is an exciting opportunity for someone who wants their theory to end up in fabricated chips.

Key Responsibilities

• Develop analytical and numerical models of superconducting circuits: circuit quantization, effective Hamiltonians, and qubit–coupler–resonator interactions.
• Simulate qubit dynamics, single- and two-qubit gates, dispersive readout, and reset, including leakage, crosstalk, and decoherence.
• Run large-Hilbert-space simulations of multi-qubit systems to identify error mechanisms that emerge as the processor scales.
• Propose and analyze novel coupler, gate, readout, and reset schemes, drawing on advances in quantum information science, and translate design trade-offs into concrete parameter targets for the chip.
• Work closely with the RF/EM design team: turn EM and microwave simulation results into Hamiltonian parameters and build efficient EM-to-quantum workflows.
• Analyze measurement data from current devices together with the measurement team, validate models, and feed the lessons into next-generation designs.
• Build Python design-automation tools that link quantum models, EM simulation, and chip layout.

Qualifications

• MSc in physics or a related field; a PhD in quantum physics, theoretical physics, or a related field is preferred.
• Strong expertise in advanced quantum mechanics, including perturbation theory and effective-Hamiltonian methods.
• Experience modeling quantum hardware, preferably superconducting circuits.
• Hands-on experience with numerical simulation of quantum systems (e.g., QuTiP, scqubits, or in-house code).
• Strong proficiency in Python, including object-oriented programming.
• Excellent analytical and communication skills, and experience working with experimental teams to analyze data.
• Research experience in circuit quantization, circuit QED, or quantum control is a plus.
• Experience with large-Hilbert-space or open-system simulation, or HPC, is a plus.
• Familiarity with EM and microwave simulation tools (HFSS, Sonnet, COMSOL, etc.), black-box quantization, or superconducting circuit layout is a plus.

What We Offer

• The opportunity to work on pioneering technologies in a cutting-edge field.
• A collaborative environment that values innovation and creativity.
• Competitive salary and benefits package.
• A chance to make a significant impact on the future of superconducting and quantum technologies.

How to Apply

If you’re ready to take on the challenge and contribute to the future of superconducting technologies, please send your resume and a cover letter detailing your relevant experience and why you’re the ideal fit for this role to [email protected]

Join us in shaping the next frontier of chip technology!