Stef Tivnan (Properties) Stef Tivnan is a theatre artisan from the Worcester area. She is currently completing her degree in technical theatre at Fitchburg State University. She has worked as a props master for companies in the Boston area such as 4th Wall Stage Company and Fresh Ink Theatre Company, as well as on several Main Stage productions at Fitchburg State. Though props is her preferred niche, she has also worked in a variety of technical design disciplines, such as sound design, house management, and lobby design. She is very excited for the opportunity to work with such a wonderful production company as Central Square Theater!