Security guard works at Amazon, and Amazon works to sell his BBQ sauce

Spencer Lindsay, founder and creator of Mr. Maurs, inside a Peruvian store and restaurant in Shoreline, Wash. Lindsay creates his sauces inside the store and sells them on Amazon. (Erika Schultz/Seattle Times/TNS)

SEATTLE: Security guard Spencer Lindsay works three 12-hour shifts a week at an Amazon.com campus in Seattle, watching over the software developers and retail experts who toil to expand the frontiers of e-commerce. 

On his own time, the 32-year-old is an Internet merchant too, building a business on top of Amazon's own.