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Hanbyeol Choi has worked at two companies in their professional career. From April 2021 to the present, they have been working as a Product Owner at Viva Republica (Toss). Prior to that, from August 2017 to April 2021, they worked at Swit as a Product Manager and also had a role as a Student Intern, where they were involved in UX Research projects and attended the 2017 TechCrunch event in New York.

Hanbyeol Choi attended Sejong University from 2014 to 2018, where they pursued a Bachelor's degree in Computer Science with a focus in Software Engineering.