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Atomic Clock Research Physicist

Job in Boulder, Boulder County, Colorado, 80301, USA

Listing for: U.S. Department of Commerce

Full Time position
Listed on 2026-09-04

Job specializations:

Research/Development
Research Scientist, Physics
Science
Research Scientist, Physics

Atomic Clock Research Physicist

NIST's Physical Measurement Laboratory (PML) sets the definitive U.S. standards for nearly every kind of measurement employed in commerce and research, spanning more than 20 orders of magnitude. This position is in PML's Time Realization and Distribution Group, which operates an ensemble of commercial atomic clocks and purpose-built atomic frequency standards to provide the U.S. with official sources of time or frequency.

If hired as the Atomic Clock Research Physicist, you will:

Work closely with world-renowned experts in atomic timekeeping and application of precision time signals.

Be a key contributor developing, improving, and maintaining both experimental and theoretical activities in microwave and optical atomic clocks and the UTC(NIST) atomic clock timescale.

Plan and carry out difficult and complex assignments pertaining to the development and maintenance of accurate primary and secondary frequency references based on atomic physics.

If you apply, please make sure your resume/CV clearly demonstrates the relevant experience described in the Requirements section below, particularly the requirements outlined under Basic and Additional Requirements. These include transcript requirements.

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