In 2018, Sonia placed Top 20 at Miss Universe 2018.
Sonia Fergina Citra was crowned Miss Universe Indonesia 2018 (Puteri Indonesia 2018) and will compete for the title Miss Universe 2018 on December 17, 2018 in Bangkok, Thailand. In addition to receiving the ultimate crown at Miss Universe Indonesia 2018, Citra also received the title Miss Intelligence and among the top 3 in Best Traditional Costume. Citra began her career as a model in 2005 through the competition Bangka Belitung Youth Model Faces. Currently, Citra works under the title Digital Marketer for a distribution company in Jakarta.
Prior to her crowning as Puteri Indonesia 2018, Citra competed in a handful of pageants throughout her home country. Citra was a top ten finalist in the Putri Pariwisata Indonesia 2010 competition. Citra also placed within among the top ten finalists during the Miss Oriental Tourism 2012 competition.