  We study supersymmetry breaking effects induced on D3-branes at singularities
by the presence of NSNS and RR 3-form fluxes. First, we discuss some local
constructions of chiral models from D3-branes at singularities, as well as
their global embedding in flux compactifications. The low energy spectrum of
these constructions contains features of the supersymmetric Standard Model. In
these models, both the soft SUSY parameters and the mu-term are generated by
turning on the 3-form NSNS and RR fluxes. We then explore some
model-independent phenomenological features as, e.g., the fine-tuning problem
of electroweak symmetry breaking in flux compactifications. We also comment on
other phenomenological features of this scenario.
