San Jose-based OCZ Technology Group (UNKNOWN:OCZ.DL) is switching CFOs.

On Monday, the maker of solid-state memory drives announced that its chief financial officer of nine years, Arthur Knapp, is retiring and will be replaced by Rafael Torres.

Torres comes to OCZ from Alcatel-Lucent (UNKNOWN:ALU.DL) subsidiary Capella Photonics, where he served as CFO up through the switchmaker's January acquisition by larger Lucent. He also has experience in that position in two other Nasdaq-listed firms, $1.2 billion market-capped Power Integrations and smaller PLX Technology. In each case, OCZ says that Torres helped to engineer turnarounds at businesses that had come upon difficult times -- such as those encountered by unprofitable OCZ.

OCZ shares gained 3.9% in Monday trading, closing at $1.85 per share ahead of the news.