MESA Charter High School | 5,687 followers on LinkedIn. MESA Links is a growing network of high-performing charter schools serving the diverse communities of Brooklyn. Our flagship campus, Math, Engineering, and Science Academy (MESA) Charter High School, opened its doors in Bushwick in August 2013 and now serves 500 students in grades 9–12. Since graduating our first class of seniors in 2017, MESA Bushwick has maintained a 94% cumulative graduation rate, reflecting our students' strong commitment to academic success.