Letty was the owner and operator of her own computer consultancy in Marin County, California, for a decade before moving to Britain where she held various jobs, including several senior civil service positions.
She and a business partner ran a successful marketing company for a time, but eventually Letty settled into teaching and training business and information technology classes at a college of further education. Letty completed a five-year master's degree program at Exeter University, receiving her M.Ed. in 1999.
She has been teaching various business and information technology classes at Lake Washington Institute of Technology since 2000, and is now in charge of the Business Technology program.