Querijn de Graaf is a skilled professional with extensive experience in machine learning, data engineering, and software development. Currently serving as a Machine Learning Engineer - Search at DPG Media Nederland, Querijn has previously held roles such as Data Engineering Consultant at GGD Amsterdam and Data Engineer at ProRail. Additional experience includes positions as a Software Engineer at Lab Digital and a Machine Learning/Backend Engineer at Blacklane, where data analysis and business intelligence were also key responsibilities during earlier roles as a Data Analyst and Junior BI Analyst.