Originally from Queens, New York, Leo entered the field more than 20 years ago. Over the years, he has worked as a teacher, program administrator and director, project manager, proficiency rater/examiner, and consultant. In the area of educational technology, he has led the design, development, and successful implementation of online language learning platforms for diverse constituents, including a large international telecommunications company and a network of international universities. He has also instituted large-scale, nationwide blended learning programs for government agencies as well as technology-centred curricula at several language centres. Leo has authored/co-authored more than 20 publications and regularly presents at international conferences.