Matthew is a 3L member of the Trial Team serving as vice president. He has also previously served as the co-chair of competitions. Toplak was a quarterfinalist in the Buffalo-Niagara Trial Team Competition and semi-finalist in the 2021 Wayne Hogan Intramural Competition. He is also the president of the LitiGators at FSU College of Law, a College of Law student ambassador, and a member of numerous other student organizations.

Toplak is currently a member of Class XVIII of the Florida Gubernatorial Fellowship Program and is placed at the Division of Emergency Management. This summer, he was a judicial intern at Florida's First District Court of Appeal for Judge L. Clayton Roberts. He previously interned with Tampa Electric Company as a policy and lobbyist intern and clerked for Young Qualls, P.A. as well as Lau, Lane, Pieper, Conley & McCreadie, P.A.