• SLB

Harmony Graeff

Application Engineer II

Harmony Graeff is an experienced engineering professional with a strong background in application and reliability engineering. Currently serving as an Application Engineer II at SLB since July 2025, Harmony previously held similar roles at ChampionX, where positions included Application Engineer II and Reliability Engineer II. Earlier experience at ProPetro Services, Inc. spanned from Field Engineer I to Field Engineer II, in addition to a field internship in the Frac Division. Harmony's academic credentials include a Bachelor of Science in Petroleum Engineering from Texas Tech University and ongoing pursuit of a Master of Business Administration from The University of Texas Permian Basin.

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