Dianna O'Brien is a strategic HR leader with over 7 years of progressive experience in fast-scaling, publicly traded global tech companies and 15+ years of diverse HR expertise across different industries. Dianna served as a Senior HR Business Partner at MongoDB from 2020 to 2023 and currently holds the position of Senior People Partner for Engineering & Product at Rokt since 2025. Dianna's background includes roles such as Senior Generalist in Global Talent Management at the Population Council and various HR positions at Criteo, Coby Electronics Corporation, PSCH, and PrideStaff. Dianna earned a Bachelor of Arts in Psychology from Saint John's University and continues education at St. John's University. Committed to shaping company culture, Dianna emphasizes leadership development, change management, and employee engagement.
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