Quantum Design Engineer

• Design superconducting qubits, couplers, and quantum circuits for scalable quantum processors;
• Develop and optimize qubit architectures with respect to coherence, frequency crowding, control, and readout;
• Perform electromagnetic and circuit-level simulations (participation ratios, loss channels, mode analysis);
• Analyze sensitivity to fabrication tolerances and process variations;
• Define design rules that balance performance with manufacturability and yield;
• Support the experimental team by interpreting measurement data and feeding results back into design iterations;
• Contribute to system-level architectural choices (connectivity, coupling schemes, control simplification);
• Document designs, simulations, and design rationale for internal and external use.

• PhD or MSc in Physics, Applied Physics, Electrical Engineering, or related field;
• Proficiency with EM and circuit simulation tools (e.g., HFSS, Sonnet, COMSOL, or equivalent);
• Background in superconducting qubit physics and circuit quantum electrodynamics (cQED);
• Solid understanding of decoherence mechanisms and materials loss in superconducting devices;
• Hands-on experience designing superconducting quantum circuits;
• Ability to connect theoretical models with experimental constraints.

Every job has its challenges, and this one is no exception. While many companies gloss over them, we believe in being upfront:

• You'll face tough situations, especially the classic challenge: people problems. Navigating human dynamics can be tricky and requires patience and empathy;
• Some work is unglamorous, but building a great company means rolling up your sleeves. From strategic decisions to hands-on grunt work, everyone contributes to the heavy lifting.

We're not looking for perfection; we're looking for people who are ready to grow through the hard parts and help us build something that lasts.

What We Offer

• Competitive salary + benefits;
• Stock options;
• Flexible working hours with hybrid working;
• Ego-free, merit-based environment.

Planckian is an equal-opportunity employer.

Planckian is building the foundational technology for large-scale quantum computers.