5+ years experience as a structural designer for engineered building components. I worked primarily with wood trusses (floor and roof), but I also designed steel trusses, sized steel columns and beams, sized and specified engineered lumber products, hangers, nails, screws and just about any other peice of material you can think of in the building industry. I have done full engineering design on structures that range from small houses to multi-level elderly retirement complexes.
I worked under a P.E. and all of my calcs were verified and sealed.
I am also a photographer - nothing professional, but I know much more than the fundamentals and more than enough to understand many of the anomolies that woos love to point to. Although it doesn't come into play much with 9/11 debunkung, it's nice to know the ins and outs of photography when it comes to many other woo claims ("no stars in moon photographs", orbs).
Currently, I am a programmer and database admin, but I continue to work within the construction industry.