I am using theoretical and numerical methods to study the properties of Quantum chromodynamics (QCD), the theory of strong interaction, its fundamental particles being quarks and gluons. In the low energy regime of QCD many phenomena are non-perturbative, and the way to study them from first principles is obtained if continuous space time is replaced by Euclidean lattice. Thus the name of the field - Lattice QCD. The simulations in lattice QCD are computationally very demanding and require massive parallelization, powerful computers and constant algorithmic development. I have been running my simulations on IBM Blue Gene/P at Jülich Supercomputing Center, HLRN in Berlin and Hannover, Blue Gene Q in Edinburgh, Altamira in Spain and CSCS in Switzerland and TH cluster at CERN. I am currently working as an assistant professor at Trinity College Dublin, and hold a visiting scientist post at the TH Department at CERN.