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Kristina Petrova started their work experience in 2016 as a Customer Service Representative at GVC Group. Kristina then worked as an Office Manager at BICA Services from November 2017 to February 2018. In 2018, they joined Tryzens as a Junior Quality Assurance Engineer and later became a Software Quality Assurance Engineer Intern. From 2020, they worked as a Quality Assurance Engineer at Matrix Global Services - Eastern Europe. Currently, they are employed as a Junior Automation QA at ezbob since November 2022.

Kristina Petrova obtained their Bachelor's degree in International Relations and National Security Studies from the University of National and World Economy in 2017. Following this, they pursued a Master's degree in Public Relations, Advertising, and Applied Communication from the same university, which they completed in 2018. In May 2018, Kristina Petrova also received a certification as a Quality Assurance Engineer from Soft Academy Bulgaria.