Mayor Bloomberg yesterday ordered all major city technology contracts to undergo another layer of review in the wake of the mammoth CityTime scandal that erupted last week.

He said Deputy Mayor Stephen Goldsmith will review large “subcontracting, consulting, billing and record-keeping practices.”

The biggest scandal of Bloomberg’s tenure came to light last week when federal authorities discovered contractors working on an electronic city-payroll system stole $80 million over five years without anyone realizing.