Wages in the telecom, health care and aviation sectors remained steady in the third quarter, while other areas suffered, Yoh said.

Hot tech job titles in the third quarter included Java developer, Oracle database administrator, .NET developer, SAP consultant and firmware/embedded engineer.

The drop in tech wages isn't due to employers demanding lower rates from IT staffing companies, at least from Yoh's perspective, said J.O. Johnson, vice president of operations.

"We provide the talent at a market-competitive rate for the talent [customers] need. What we see is that sort of number takes care of itself to a large degree," he said.

Tech wages are likely falling because more people are hunting for jobs. Several high-tech companies have announced plans for layoffs recently. Hewlett-Packard, which recently purchased the massive systems integrator EDS, recently that it would cut more than 24,000 positions over the next few years as part of a restructuring.