James Johnson, an IT veteran with 25 years' experience running Wall Street technology operations, walked into Lehman Brothers' packing-box-strewn office high in the Time-Life building in Rockefeller Center. It was November 2008. Johnson had just been named Lehman's CTO and had been given the job of operating the IT infrastructure needed to wind down the firm.

BlueLock, a little-known cloud-computing services provider, is rolling out a suite of services aimed at a wide range of customers, it announced Monday.