  We present results from a search for short time-scale white dwarf variability
using \texttt{gPhoton}, a time-tagged database of \textit{GALEX} photon events
and associated software package. We conducted a survey of $320$ white dwarf
stars in the McCook-Sion catalogue, inspecting each for photometric variability
with particular emphasis on variability over time-scales less than $\sim 30$
minutes. From that survey, we present the discovery of a new pulsating white
dwarf: WD 2246-069. A Ca II K line is found in archival ESO spectra and an IR
excess is seen in WISE $W1$ and $W2$ bands. Its independent modes are
identified in follow-up optical photometry and used to model its interior
structure. Additionally, we detect UV pulsations in four previously known
pulsating ZZ Ceti-type (DAVs). Included in this group is the simultaneous
fitting of the pulsations of WD 1401-147 in optical, near-ultraviolet and
far-ultraviolet bands using nearly concurrent Whole Earth Telescope and
\textit{GALEX} data, providing observational insight into the wavelength
dependence of white dwarf pulsation amplitudes.
