Senior RF & Microwave Engineer - Quantum Sensing Systems

About the Role We are seeking exceptional and top tier talent in the field of RF and Microwave Engineering with strong foundations in electromagnetics, transmission line theory, and low-noise circuit design. The ideal candidate will bridge the gap between theoretical physics and physical hardware, collaborating closely with quantum physicists and instrument engineers to design the electromagnetic environment that governs our sensors. You will design and implement RF control chains, ultra-low phase noise synthesizers, and precision PCBs that enable atomic manipulation and readout in the 1–10 GHz range. What You’ll Do RF Chain Design & Simulation Design and simulate end-to-end RF control chains for atomic manipulation (L-Band to X-Band / 1–10 GHz), including LNAs, Mixers, Attenuators, and Switches. Develop ultra-low phase noise frequency synthesizers (PLLs/VCOs) required for preciseatomic clock and magnetometer locking. Use industry-standard solvers (HFSS, CST Studio, or ADS) to model microwaveresonator cavities, coil geometries, and antenna radiation patterns. Antenna Design & Electromagnetic Modeling Design and simulate custom antenna elements (Patch, Horn, Helical, or ResonantLoops) for radiating microwave fields into atomic vapor cells with high uniformity. Model and optimize antenna parameters including Gain, VSWR, Radiation Pattern, andPolarization using full-wave solvers (HFSS, CST Studio, or FEKO). Design near-field applicators and resonant cavities to maximize magnetic field couplingefficiency for quantum state manipulation. PCB Layout & Signal Integrity Lead the layout of mixed-signal PCBs (4 to 8+ layers) using Altium Designer, ensuringisolation between RF, sensitive analog, and noisy digital sections. Implement controlled impedance routing (Microstrip, Coplanar Waveguide) and managelayer stack-up selecti