Prospects for SUSY Discovery and Measurements with the ATLAS Detector at the LHC

We present searches for generic SUSY models with R-parity conservation in the ATLAS detector at the LHC, based on signatures including missing transverse energy from undetected neutralinos, multiple jets and leptons or tau- and b-jets. We also show the techniques developed to reconstruct the decays of SUSY particles. We concentrate on strategies to be applied to the first inverse fb of ATLAS data.