 He then performed postdoctoral research in Hans Dehmelt's group at the University of Washington where he investigated electrons in ion traps.In 1975, he joined the National Bureau of Standards (now called NIST), where he started the ion storage group and is on the physics faculty of the University of Colorado at Boulder.In January 2018, Wineland moved to the Department of Physics University of Oregon as a Knight Research Professor , while still being engaged with the Ion Storage Group at NIST in a consulting role.