This study aims to examine the factors that affect customers repurchase intention in the e-commerce marketplace during the COVID-19 pandemic on Java Island in Indonesia, using the extended Technology Acceptance Model (TAM) theory and UI/UX Concept. Perceived ease of use, shopping experience, e-trust, and age are variables that are predicted to affect e-commerce marketplace repurchase intention behavior during the COVID-19 pandemic. The data were collected through an online survey from e-commerce marketplace customers in Java who have had at least two experiences of purchasing goods or services through e-commerce in Java. In total, 250 valid responses were analyzed to test hypotheses using structural equation modeling and multi-group analysis.  The results show that perceived ease of use, shopping experience, and e-trust are found to significantly affect the repurchase intention in e-commerce marketplace. The study also show that e-trust has a role in mediating the relationship between both perceived ease of use towards repurchase intention and shopping experience towards repurchase intention. However, the multi-group analysis did not find any significant differences between shopping experience and repurchase intention across age groups. Finally, this paper ended with some discussions, implications, limitations, and conclusions.