Jeffrey Tan is the Chief of Internal Administration at the Stuyvesant Student Union. He has been actively involved in the Student Union throughout his years at Stuyvesant, starting a monthly Soft Skills Newsletter as part of the External Affairs Department and working on SLT in his junior year. Within Stuy, he also runs a business club called Stuy Startup, arranges music for SING! as Band Director, and plays point guard on the Varsity Basketball Team.

Outside of Stuyvesant, Jeffrey is a competitive pianist who has played in classical concert halls such as Carnegie Hall and Lincoln Center. He also runs a sports-focused mentorship program called Sports Sibs.