More than 20 years of experience on technology areas and projects of large companies of different sectors such as telecommunications, digital, services, automotive and retail. Cesar has worked for the last 10 years on Big 4 accounting Firm, having implemented technology solutions of different natures such data analytics, business intelligence, software development, robotization, cloud computing services, Optical Character Recognition (OCR) as well as tax projects such as refund of credits, transfer pricing calculations, REINTEGRA (maximization), eCredAc (both methodologies) and the exclusion of ICMS on the PIS and COFINS calculations basis.