 This study examined the effectiveness of an English language for specific purposes, ESP, course developed through a blended learning approach, which combines traditional classroom teaching with an online platform. The course was designed to improve the English language proficiency of mining mechanical engineering students. Two groups of students were formed, one group received the ESP course via the online platform, while the other group received the same course in a traditional classroom setting. The results showed that the ESP course had a positive effect on students' English language proficiency as measured by a cross-assessment test. This suggests that the use of an online platform can be an effective way to deliver ESP courses to engineering students. This article was authored by Hannah M. Shilotska, Alina Yuzatova-Sadolo, and Ivan O. Musica.