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Zoho in Torrance, CA invites applications for an Experimental Quantum Physicist to lead design, development, and testing of atomic and photonic metrology platforms. The role emphasizes hands-on lab work, system integration, and the advancement of quantum sensing technologies for precision PNT and RF electrometry.
The ideal candidate has deep AMO background, experience with cold-atom or integrated photonics, and proven laboratory proficiency in optical stabilization, alignment, and data analysis.
Torrance, United States | Posted on 10/07/2026
Experimental Quantum Physicist (Atomic Sensors & Quantum Metrology)Job Type: Full-time, PermanentWorkplace Type: On-site (Laboratory-based)Location: Torrance, CA (Greater Los Angeles Area)Salary Range: $110,000 – $180,000 / year (commensurate with experience & degree level)Job SummaryWe are seeking an innovative and driven Experimental Quantum Physicist to spearhead the laboratory research, design, and hardware development of next-generation atomic and photonic metrology platforms. In this role, you will be instrumental in advancing cutting-edge quantum sensing systems engineered for precision Positioning, Navigation, and Timing (PNT) as well as RF electrometry applications.The ideal candidate is a self-starter with deep hands-on experimental proficiency across atomic, molecular, and optical (AMO) physics, cold-atom architectures, laser stabilization, or integrated photonic subsystems.
Experimental System Design: Design, build, and optimize benchtop and compact prototype setups for atomic and photonic quantum sensors.
Laser & Optical Alignment: Assemble, align, and maintain complex optical trains, narrow-linewidth laser systems, optical frequency combs, and precision fiber-coupling hardware.
Quantum Sensing & Metrology: Drive experimental validation across core quantum modalities (e.g., atom interferometry, atomic magnetometers, Rydberg-atom electrometer systems, or chip-scale atomic clocks).
Data Acquisition & Analysis: Develop automated test benches and instrumentation control routines for rapid data logging, signal processing, Allan deviation measurements, and noise-floor characterization.
Hardware Miniaturization & Packaging: Collaborate on the transition of free-space laboratory setups into ruggedized, compact physics packages and integrated photonic architectures.
Technical Documentation: Document experimental methodologies, system architectures, and characterization results in comprehensive technical reports and engineering specifications.
Education: Master’s or Ph.D. in Experimental Physics, Applied Physics, Optical Sciences, Electrical Engineering, or a closely related technical field.
Laboratory Tenure: 2+ years of hands-on post-graduate or industry experimental laboratory experience in atomic physics, quantum optics, or photonics.
Core Technical Expertise: Demonstrated hands-on experimental background in at least one of the following domains:
Atom-based sensing: Cold/neutral atom systems, atom interferometers, atomic magnetometers, Rydberg-atom sensors, or atomic clocks.
Integrated photonics: Waveguide coupling, photonic integrated circuit (PIC) characterization, or hybrid photonic packaging.
Levated optomechanics: Precision manipulation and optical trapping of nano- or micro-particles.
Optical frequency combs: Comb generation, carrier-envelope offset (CEO) stabilization, and comb-based metrology.
Optics & Lasers: Demonstrated proficiency with laser frequency locking (e.g., Pound-Drever-Hall, saturated absorption spectroscopy), vacuum systems (UHV), and precision optical alignment.
Familiarity with ultra-high vacuum (UHV) chambers, magnetic shielding design, or RF/microwave electronics for atomic state preparation and interrogation.
Proficiency in Python, MATLAB, or LabVIEW for instrument automation, PID loop tuning, and experimental data acquisition.
Experience transitioning laboratory-scale quantum physics apparatus into deployable, SWaP-optimized (Size, Weight, and Power) prototypes.
Base Salary: $110,000 – $180,000 / year
Health & Wellness: Comprehensive Medical, Dental, and Vision insurance coverage
Retirement: 401(k) retirement savings plan
Time Off: Paid Time Off (PTO), sick leave, and company-paid holidays
Standardized Title: Experimental Physicist / Quantum Physicist
Alternative Matching Titles: Quantum Optics Scientist, Atomic Physicist, Photonics Research Scientist, AMO Physicist
City: Torrance
State: California (CA)
Postal Code: 90504 (or San Pedro, CA 90731)
Country: United States
Industry: Defense & Space / R&D / Nanotechnology & Quantum Tech