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Bruno Di Stefano is a professional engineer. He holds an electronics engineering degree. From November 28, 1980, to December 31, 2012, he held an active professional engineering license issued by PEO (Professional Engineers Ontario). Since January 1, 2013, he no longer offers engineering services to the public, but he conducts research in some of his areas of interest & expertise and manages Nuptek Systems Ltd., the company of which he is president since 1981. Until December 2012, Nuptek Systems Ltd held a PEO (Professional Engineers of Ontario) Certificate of Authorisation, specialising in microprocessors, automation, hardware, and software, including real-time embedded systems, fuzzy logic, OOA/OOD, C/C++. Previously, Bruno Di Stefano was a senior design engineer for AES Data Ltd. and Delphax Systems. Mr. Di Stefano has published several technical papers and book reviews in his area of expertise. Current professional and research interests of Mr. Di Stefano include real-time embedded systems, OOA/OOD, C/C++, fuzzy logic, and computational intelligence, and their design methods.

From 1986 to 2004, Mr. Di Stefano has taught in the Professional Development Program of the Faculty of Applied Science and Engineering at the University of Toronto. His courses have been in the areas of Real-Time Embedded Systems, Fuzzy Logic, C Programming Language, Object-Oriented Analysis and Design, Object-Oriented Analysis and Design using the Unified Modeling Language (UML), C++ Programming Language, Algorithms & Data Structures, UNIX, X11 (X windows), Multitasking, and Microprocessor-Based Data Communications. Previously he was an instructor with Ryerson University teaching in the areas of microprocessors and microprocessor systems. He also delivered courses for the University Of Toronto (School of Continuing Studies), Technical University Of Nova Scotia, the IEEE Toronto Section, CAIMS (Canadian Applied and Industrial Mathematics Society), the Canadian High Technology Show, EPIC (Educational Program Innovations Center), and many in-house courses for several clients of Nuptek Systems Ltd.

Mr. Di Stefano is a Senior Member of IEEE since 1994 and has been actively involved with the institute since 1979. Within the Toronto Section of the IEEE, he has been Society Chapter Chair, Educational Activities Chair, History Chair, Section Treasurer, Section Secretary, Section Vice-Chair, Section Chair, and Section Past-Chair. Mr. Di Stefano has been a member and the Chair of the IEEE Central Canada Council. He is currently a member of the IEEE Canada Executive Committee as Professional Development Committee Chair. He has served as Ethics Committee Chair and as Publication and Communications Chair. Over the years, Bruno Di Stefano has been a member of various IEEE Committees, including the Educational Activities Committee of IEEE Canada and Electronic Services Support Committee, and many organising committees of IEEE Conferences. He has received the following awards from IEEE: IEEE Canada W.S. Read Outstanding Service Award (2008); a Toronto Section Scholarship named in his honour (2003) (one of three in the 105 years of the IEEE Toronto Section history); IEEE Third Millennium Medal (2000); IEEE Central Canada Council Award (1998). In March 2007, Bruno Di Stefano was elevated to Fellow of the EIC (Engineering Institute of Canada).

Since 1992 Mr. Di Stefano has been a member of the executive of the PEO Toronto-Dufferin Chapter and, after the chapters' reorganization, of the PEO West Toronto Chapter. Moreover, he served as a member of the PEO PPC (Professional Practice Committee) (2001 - 2002) and as Chair of the EDTG (Engineering Disciplines Task Group)(1998 - 2002), the group mandated to study regulatory issues pertaining to non-traditional engineering disciplines and in particular software engineering. Mr. Di Stefano is the co-author of PEO guidelines for "Professional Engineers Acting as Independent Contractors" and for "Professional Engineers Acting as Contract Employees". Bruno Di Stefano represented PEO in 1999-2000 as a member of the CEHRB (Canadian Engineering Human Resources Board), which conducts labour market surveys, provides statistical information on engineers and engineering, and monitors supply and demand, one of the boards of the CCPE (Canadian Council of Professional Engineers) the Canadian national coordinating body for provincial and territorial licensing authorities.