  We demonstrate the integration of micro-electro-mechanical-systems (MEMS)
scanning mirrors as active elements for the local optical pumping of ultra-cold
atoms in a magneto-optical trap. A pair of MEMS mirrors steer a focused
resonant beam through a cloud of trapped atoms shelved in the \textit{F}=1
ground-state of \textsuperscript{87}Rb for spatially-selective fluorescence of
the atom cloud. Two-dimensional control is demonstrated by forming geometrical
patterns along the imaging axis of the cold atom ensemble. Such control of the
atomic ensemble with a microfabricated mirror pair could find applications in
single atom selection, local optical pumping and arbitrary cloud shaping. This
approach has significant potential for miniaturisation and in creating portable
control systems for quantum optic experiments.
