John is the Lead of the Data and Evaluation team at Vretta, an organization that specializes in modernizing assessment and learning solutions that measure and support learner success. Leading the company’s data strategy and evaluation initiatives, he ensures the quality, integrity, and availability of data across complex analysis pipelines and applications. He works closely with stakeholders to optimize data processes, driving the insights necessary to enhance assessment reliability and accessibility for partners worldwide.

With an extensive academic background, including a PhD in Experimental Physics from the University of Toronto and a Master’s and Bachelor’s in Applied Mathematics from the University of Waterloo, John brings a rigorous, analytical approach to data science. He combines technical depth in scientific computing and web development with a passion for transforming complex datasets into meaningful outcomes that drive innovation and support the long-term success of candidates and educational partners.