John Goehrke, a veteran of several tech startups, is coming on board Nextreme Thermal Solutions as chief executive officer, the company announced Monday.

Nextreme uses thin-film thermoelectric technology to produce discrete and integrated cooling and power-generation devices. It is one of the portfolio companies of RedShift Ventures, which has offices in Virginia and Maryland.

Rich Harris, chairman of Nextreme’s board of directors and managing general partner at RedShift, said, "John’s track record in high-tech marketing, sales, and operations makes him well-suited to lead the company going forward."

Nextreme is an RTI International spinoff, and in June they shared an "R&D 100" award for the development of a chip-scale thermoelectric cooler that can be used to provide a unique and effective solution for thermal problems of high-performance computer and electronic chips.

In announcing Goehrke’s appointment, Nextreme said he most recently was CEO of Morrisville-based siXis Inc., which he founded and which is backed by RTI International and Intersouth Partners. Sixis focuses on advanced silicon circuit-board technology.

Goehrke also has been chief operating officer of Luna Innovations, where he was part of the executive management team that successfully completed an initial public offering of the company in June 2006, Nextreme said.

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