iTernal Networks says,

Bill was great to work with and I would definitely work with him again in the future.

for CSV import/export to SQL database on Sep 16, 2014

stratpricing says,

Bill did an excellent job on a complex project. He created a series of programs with several sets of computations that processes 1.5 million lines in less than 10 minutes. The project took a little longer than he expected due to its complexity, but the finished product is excellent. I highly recommend him.

for Flexible SQL Price Indexing Tool on Mar 26, 2009