This book is an open access. Welcome to the 3rd Lawang Sewu International Symposium on Engineering and Applied Sciences (3rd-LEWIS-EAS), an annual international symposium held by Universitas Muhammadiyah Semarang . This year, the symposium will take place online via Zoom on November 27, 2024, in Semarang, Central Java, Indonesia. The 3rd-LEWIS-EAS is intended to provide a forum for lecturers, professionals, researchers, and students to collaborate, explore opportunities, and exchange valuable insights to shape a sustainable future through cutting-edge innovations and dynamic discourses in technology. Studies focused on engineering sciences are welcome. Submitted papers must meet criteria including originality, novelty, and not having been previously published, and must be written in English. The symposium will feature main speakers, invitees, and oral sessions. To increase the dissemination and visibility of research findings, accepted papers will be published in online Proceedings.