I am a Professional Engineer (P.Eng.) who was registered with the Association of Professional Engineers and Geoscientists of Alberta APEGA.
Some of the interesting hardware projects in which I have been involved include:
PostWatch - a system that monitors banks of mailboxes and then automatically responds to a telephone query by telling the caller (by voice) whether the caller has mail.
AccuSwath - a GPS based farm vehicle navigation system.
Some of the interesting software projects in which I have been involved include:
Real-time Coal Loading System - automatically fill rail cars with coal - far more difficult than it sounds!
SQL database implemented in PROLOG
Graph Layout - automatically lay out graph nodes and vertices - implemented in Java
I have nearly lost track of all the different computer languages I have used: Java, C, PROLOG, C++, FORTRAN, BASIC, 20 flavors of Assembler, .....