The Sensor Science Division within the Physical Measurement Laboratory of the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland anticipates the need for a scientist or engineer to conduct calibrations and research in flow metrology. The Sensor Science Division maintains measurement services for gas flow, liquid flow, air speed, liquid volume, and liquid density (https://www.nist.gov/pml/sensor-science/fluid-metrology). Services are continually evolving to provide the measurements and associated uncertainties needed to support U.S. innovation and industrial competitiveness.