Theary joined Swissconact in Cambodia in June 2020 as a Junior Finance Officer. Her role includes supporting Senior Project Accountant and Business Administration Department. Before joining Swisscontact, she had worked as an Accountant for a travel agency in Phnom Penh for two years.
Theary finished a Diploma Degree in Tourism at École d'Hôtellerie et de Tourisme in Siem Reap in 2017, during which she was also trained as a Passenger Service at Siem Reap International Airport. In 2018, she enrolled in Accounting major at National University of Magement in Phnom Penh.