Shreeharsha GN has many years of experience in the field of Performance Engineering for software applications and Java stack optimization, big data software and IBM java stack performance optimization at companies including IBM, Azul systems , HCL, Infosys. He is a SPEC member and was a key person responsible for certifying energy efficiency of IBM enterprise servers. At present, he is working on Apache spark Open Power enablement and Apache spark big data performance optimization on IBM platform.