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AOSense

Designs and manufactures cold-atom sensors

R&D Engineer

Full-TimeUpdated on 10/17/2026
$70k - $110k+ Stock plan
Mid
Bachelor's
Fremont, CA, USA
In Person
Mechanical EngineeringDesign Engineering
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • Demonstrated success in building complex optomechanical prototypes and products.
  • Willingness to become an expert at new fabrication disciplines.
  • Hands-on experience with precision test equipment.
  • Applicants must be U.S. citizens or permanent residents for U.S. Government contracts.
  • A bachelor's degree in physics or engineering, or equivalent professional experience, with experience in an research and development environment.
Responsibilities
  • Collaborate with physicists and engineers to rapidly iterate designs and prototypes.
  • Work with electrical, mechanical, and optical engineers to create, assemble, and test complex sensor and clock hardware.
  • Procure mechanical and optical components.
  • Coordinate component and subsystem fabrication and assembly.
  • Assemble and test vacuum systems.
  • Align lasers through single-mode optical fibers and through bulk electro-optic and acousto-optic devices.
  • Collaborate with electrical engineers to define, document, and implement printed circuit board test plans.
  • Build and test prototype circuits and test fixtures.
  • Procure and maintain mechanical and optical test equipment.
  • Report results of validation testing.
Desired Qualifications
  • Skilled in mechanical prototyping, including basic machining and finishing operations.
  • Hands-on experience with vacuum system design, assembly, and testing.
  • Expertise in aligning and securing micro-optics components.
  • Basic understanding of Gaussian beam optics.
  • Experience with optical testing of polarization, wavefront flatness, reflectivity, optical phase shifts, beam aberrations, and related properties.
  • Operational familiarity with laser frequency stabilization.
  • Skilled in electrical prototyping, including printed circuit board fabrication, assembly, soldering, and rework.
  • Experience testing low-noise analog, mixed-signal, and radio-frequency electronics.
  • Basic knowledge of data acquisition and simulation software such as MATLAB, LabVIEW, Visual Basic, Python, and C or C++.
  • Experience with mechanical and optical design software such as SolidWorks, COMSOL, ANSYS, Zemax, and FRED.
  • Familiarity with OrCAD or Altium schematic capture and printed circuit board layout.
  • Experience developing flight-qualified hardware.
  • Hands-on experience with optical test equipment.

About the company

AOSense develops high-performance quantum sensors using cold-atom technology for navigation, timekeeping, and gravity measurement. It designs, fabricates, and tests atom-optic devices that cool and manipulate atoms with frequency-stable lasers, enabling precision measurements through atom interferometry. The company differentiates itself with Stanford-based expertise, experienced leadership, and a track record of government SBIR contracts, delivering custom SWaP-optimized solutions for defense, aerospace, and scientific customers. Its goal is to turn advanced cold-atom research into deployable systems that enable resilient GPS-denied navigation, reliable timing, and geophysical surveying.

Company Size

11-50

Company Stage

Grant

Total Funding

$26.8M

Headquarters

Fremont, California

Founded

2004

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Simplify's Take

What believers are saying

  • Lockheed Martin, Q-CTRL, and AOSense announced QuINS on March 12, 2025.
  • NASA awarded AOSense a $149,914 SBIR on August 27, 2025 for Rydberg-sensor lasers.
  • DoD awarded AOSense $1.7 million in April 2026 for low-power rubidium oscillators.

What critics are saying

  • AOSense depends on U.S. government awards; federal contracts fund nearly all revenue.
  • Lockheed’s QuINS program concentrates commercialization through primes, squeezing AOSense’s pricing power.
  • No major non-defense customer base creates existential budget risk if DoD priorities shift by 2028.

What makes AOSense unique

  • Stanford-born AOSense pioneered atom-interferometric sensors since 2004, unlike MEMS rivals.
  • Boeing’s 2024 flight test validated AOSense’s quantum IMU in airborne GPS-denied navigation.
  • AOSense builds clocks, gravimeters, and subcomponents, not just single-navigation payloads.

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Benefits

  • Health Insurance
  • Dental Insurance

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

4%

2 year growth

4%
SBIR.gov
Sep 13th, 2026
Awards | SBIR

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The Quantum Insider
Mar 13th, 2025
Lockheed Martin, Q-CTRL, and AOSense Partner to Develop Quantum-Enabled Navigation System for GPS-Denied Environments

Lockheed Martin is partnering with Q-CTRL, a quantum control engineering firm, and AOSense, a developer of high-performance quantum sensors for position, navigation, and timing applications.