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Monarch Quantum

Designs and manufactures quantum photonic subsystems

Photonics Module Test Engineer 3

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-timeSan Diego, CA, USAIn-person

About the Job

Requirements

  • A B.S. or M.S. in Photonics, Physics, Optical Engineering, Electrical Engineering, or a closely related field.
  • At least 3 years of hands-on photonics laboratory experience.
  • Extensive hands-on experience in a photonics, semiconductor, or optoelectronic device test or research environment, including operating and troubleshooting complex optical setups.
  • Deep familiarity with lasers, optical power meters, optical spectrum analyzers, electrical spectrum analyzers, and beam profilers.
  • Experience with free-space optics, fiber optics, and optomechanical assemblies, including precision optical alignment and beam path construction.
  • Working knowledge of nonlinear optical effects, including second-harmonic generation, stimulated Raman scattering, self-phase modulation, and cross-phase modulation, and experience measuring or mitigating them in photonic or fiber systems.
  • Experience with reliability or qualification testing of photonic components or modules, including burn-in and accelerated aging.
  • Proficiency in Design of Experiments methodology and statistical data analysis, with Python or MATLAB experience for processing experimental data, generating visualizations, and producing engineering reports.
  • Ability to independently troubleshoot systems in error and document the root cause and solution method.
  • Ability to document experimental methods, analyze results, and present findings clearly to technical peers and cross-functional stakeholders.
  • Must be a U.S. person as defined by 8 U.S.C. § 1324b(a)(3) because the position requires access to export-controlled information.

Responsibilities

  • Build and operate test setups for photonic components and modules, measuring output power, wavelength, linewidth, phase noise, relative intensity noise, optical nonlinearity, and beam parameters including profile, M², and divergence.
  • Draft structured Design of Experiments test plans, carry out experiments, document results, and deliver data analysis and engineering reports.
  • Carry out life testing for modules and key components, trend data, and deliver reports.
  • Conduct failure analysis under the guidance of subject-matter experts and scientists.
  • Support or lead design verification plan and report activities across EVT, DVT, and PVT phases.
  • Develop test plans, define acceptance criteria, execute qualification protocols, author sign-off documentation, and build automated test sequences using Python, LabVIEW, or MATLAB.
  • Serve as the technical owner for characterization, qualification, and reliability testing of photonic components and modules.
  • Work closely with architecture and design engineers to design and build test stations.

About the Company

Monarch Quantum

Designs and manufactures quantum photonic subsystems

Monarch Quantum designs and manufactures Quantum Light Engines, integrated photonic subsystems that replace large laser systems with compact, factory-aligned modules. These modules handle state preparation, cooling, trapping, manipulation, and coherent control to prepare and measure quantum states for computing, sensing, and communications. They operate with a vertically integrated model in San Diego, combining in-house systems engineering, hybrid optical packaging, robotic assembly, and AI-driven manufacturing to enable design-to-volume production under one roof, reducing size, complexity, and integration risk. The company differentiates itself by offering ready-to-integrate modular photonic subsystems for architectures such as trapped-ion, neutral-atom, and photonics-based platforms, targeting hardware developers, system integrators, and OEMs to streamline quantum hardware development and scaling.

Company size
51-200
Company stage
Early VC
Total funding
$55M
Headquarters
San Diego, CA
Founded
2025

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