In today's competitive world, the use of technology across diverse sectors is on the rise, and language learning is no exception. As higher secondary level (HSC) students badly need to be proficient in English to pursue higher education and build up their future careers, young learners profusely use various technologies as learning tools to make the process of language learning easy and affordable. So, this study investigated the varied impacts and implications of using technology on the development of the HSC level students' English language proficiency in Bangladesh. To explore the students' perceptions of technology usage in developing their English language proficiency, this research collected data from 235 learners from two districts in Bangladesh, employing a questionnaire consisting of both closed-ended and open-ended items. The findings revealed that most students use different technological tools for learning English. They have very positive perceptions of the utility and effectiveness of technologies in language learning, though difficulties like the high cost of tools, unavailability of free programs and software, over-reliance on technology tools, etc., were also reported. To overcome the obstacles associated with this issue, necessary support and measures were also suggested. The findings are expected to provide valuable insights into adopting policies and using technology to develop student's English language proficiency.