Abstract: Rice is one of the essential food crops consumed by every Filipino due to it being a good source of energy and protein. However, well-milled rice mostly encounters rice weevil (Sitophilus oryzae) invasion during their prolonged storage, causing severe damage to rice grains. Several solutions have been proposed to address the problem, but these solutions may harm the consumers and oftentimes, lengthy, and tedious. This study developed an automated rice sieving device (ARSD) with a heat-controlled system for the reduction of Sitophilus oryzae, programmed in Arduino IDE (C++) for automation and genetic algorithm using Python for optimum angle of inclination for sieving. Results showed that the device can effectively and efficiently separate rice weevils and rice grains at sieving inclination of 15 degrees and can eliminate rice weevils within 1 minute at constant temperature of 54°C, exhibiting a 100% mortality rate. The optimum angle of inclination at 15.7° is obtained from the genetic algorithm using Python. Furthermore, at optimum angle of inclination and 1 minute heating time, the device is reliable in sieving 1 to 3 kilograms in four rice varieties namely Malagkit, Denorado, Angelica and Sinandomeng with an average percentage value of 97.9167, 96.1458 and 92.6042 with respect to their respective rice weights (1 kg, 2 kg, and 3kg), proving that ARSD is a potential solution in addressing rice weevil problems.