RATIONAL Names 3 Corporate Chefs

Viviana Martinez, Charlene Doan and Christian Kearns will serve the Central, West and Mountain regions, respectively.

August 29, 2025

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RATIONAL USA has added three members to its culinary team, bringing the total number to 18. The three individuals include the following:

Viviana Martinez, corporate chef-iCombi, Central region.
Charlene Doan, corporate chef-iVario, West region.
Christian Kearns, previously regional sales manager, now corporate chef-iCombi, Mountain region.

“Welcoming these remarkable chefs to RATIONAL’s culinary team marks an exciting step forward,” says Billy Buck, vice president of culinary at RATIONAL, in the release. “Their knowledge will elevate both our innovation and support.”

RATIONAL, offering intelligent cooking systems, was founded in 1973 and employs over 2,700 people worldwide.