David Sainsily is a seasoned language educator and polyglot who was born and raised in French Guiana. He later moved to Montpellier, France, where he earned a Bachelor of Arts in English and Portuguese Studies. Over a twenty-year career in education, David has established himself as an expert in curriculum design and language proficiency assessments. His extensive background includes directing a summer immersion program for ten years, serving as an Advanced Placement (AP) French Reader for more than a decade, working as a certified rater for both the AAPPL and STAMP4S language tests. A true lifelong language learner, he is proficient in French, English, Portuguese, Spanish, and Creole.

Beyond the classroom, David is an avid traveler and a dedicated martial artist who actively trains in Brazilian Jiu-Jitsu (BJJ) and Muay Thai. Having recently relocated from Los Angeles, California, he is embracing a new chapter at the Taft School, where he will serve as a faculty member and dorm parent. David will reside on campus with his wife, Lindsay, as they fully immerse themselves in the school's vibrant residential community.