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James Steller is an experienced Technology and Engineering Manager currently at HollyFrontier since November 2021. Prior to this role, Steller spent over 21 years at Shell, where various positions included Technology and Engineering Manager, Reliability Manager, and Production Excellence Manager, among others. Steller's extensive background encompasses multiple engineering disciplines, including mechanical, electrical, civil, and reliability engineering. Steller holds a Bachelor's degree in Mechanical Engineering from Missouri University of Science and Technology, completed in 1999.