Tiezzi received a Laura degree cum laude in Computer Science from the Università degli Studi di Firenze, Italy (January 2005) and a Ph.D. degree in Computer Science from the same university (April 2009).
Before joining DiSIA at the Università degli Studi di Firenze as an Associate Professor in September 2021, Tiezzi was an Associate Professor at the PROS Lab in the University of Camerino, and an Assistant Professor at the SysMA research unit in IMT Institute for Advanced Studies Lucca.
Tiezzi's research activity focusses on the foundational study of distributed systems, and on the application of formal methods for developing and analysing such systems. Special attention is paid to the definition of rigorous formal bases for:
Service-Oriented Computing (an outcome is the COWS language and tools);
Autonomic Computing (an outcome is the SCEL language and tools);
Recently, Tiezzi's research activity also concerns formalisation, analysis and implementation of:
access control mechanisms (an outcome is the FACPL language and tool);
Service Level Agreements for cloud systems (an outcome is the SLAC language and tool);
mobile cloud computing systems (an outcome is the MobiCa language and tool);
languages and types for reversible computing (an outcome is the Cherry-pi language);