Fabio Giannetti is currently an associate professor at "Sapienza" University of Rome and is a lecturer of Nuclear Energy Applications (BS in Energy Engineering), Nuclear Safety and Emergency Systems (2020 - ), Nuclear Technology Design (2020 -), Nuclear Power Plants (2017 -  2019), Numerical Simulations for Nuclear Systems (2018 - 2019), for MS in Energy Engineering (Nuclear Science and Technology curriculum) and Fundamentals of Nuclear Engineering for astronautics (2018 - ).

He has a MSc degree in Energy and Nuclear Engineering (2010) and got a Ph.D. in Energy Engineering, nuclear curriculum (2014).

His research activity is focused on two-phase thermal-hydraulic transient analysis and multiphysics analysis based on system TH computer programs.  He is a member of the Italian Nuclear Association (AIN) and, actually, the scientific advisor of the AIN advisory board, and a member of the UIT (Italian Union of Thermal-Hydraulics).

He acquired capability mainly in the safety analysis and TH best-estimate transient calculations, with the aid of RELAP5/mod3.3, RELAP5-3D©, TRACE and MELCOR computer programs, to enhance the safety performances and new system/component design for nuclear reactors (GEN III, GEN IV and fusion) and relative sensitivity analysis, as well through RAVEN, developed at INL.

He is involved, in collaboration with ENEA, in the validation of such codes in liquid metals and the developing of a fusion version of RELAP5/mod 3.3 (for liquid metals and helical coil steam generators) and is a member of EU DEMO WCLL Breeding Blanket and Balance of Plant design team and ITER WCLL Water Cooling System for the Test Blanket System design team. He collaborated with FALCON consortium for the system thermal hydraulic analysis of the ALFRED reactor and the supporting experimental facility, and with WEC and ENEA in the Westinghouse LFR TH analysis and VLF experimental facility design verification. He is also involved, in collaboration of the Idaho National Laboratory, Idaho Falls, ID, USA, in the validation of PHISICS/RELAP5-3D NK-TH coupled code for fast reactors mainly through the IAEA CRP Benchmark Analysis of FFTF Loss of Flow Without Scram Test. 

He is Subject Editor of the journal "Latin American Applied Research (LAAR)" for "Heat and Mass Transfer" and Section Board Editor of Sustainability (ISSN 2071-1050) for "Resources and Sustainable Utilization". He is author or coauthor of about 120 scientific publications in international journals or conferences and more than 50 technical reports.