Having created printed circuit board layouts and mechanical drawings on many different printed circuit board CAD CAM and CAE systems (Cadstar, PADS Perform, Protel 99 SE, Power PCB, Cadstar Advanced Router by Zuken-Redac, Specctra autorouter by Cooper and Chan, Accel EDA, Tango and PCAD), John now greatly prefers Altium Designer. John prefers Gcprevue from Graphicode for viewing Gerber files.
Mastered state-of-the-art technologies including surface mount, multilayer, fine line design, flex circuits and outer space design methods. Placed and routed applications in analog, digital, memory, emitter coupled logic and characteristic impedance.
Developed and simplified printed circuit design procedures aimed at systematically eliminating errors while speeding turnaround.
At this link is a more in-depth resume for John.