  The production of one hard jet in association with missing transverse energy
is a major LHC search channel motivated by many scenarios for physics beyond
the Standard Model. In scenarios with a weakly interacting dark matter
candidate, like supersymmetry, it arises from the associated production of a
quark partner with the dark matter agent. We present the next-to-leading order
cross section calculation as the first application of the fully automized
MadGolem package. We find moderate corrections to the production rate with a
strongly reduced theory uncertainty.
