This article is devoted to the place of electronic courses of the Moodle platform in the formation of professional competence of future ship engineers. The formation of professional competence of future ship engineers in scientific discourse is investigated. There are several basic concepts: professional competence and e-course. The study is focused on solving the problem of distance learning during COVID-19 pandemic. The Moodle platform is considered as a basis for the creation and use of a set of teaching materials, methods and forms of educational process in a maritime educational institution. A set of interrelated methods is used (terminological analysis, data generalization, methodological methods and approaches). Electronic course of the Moodle platform Ship diesel installations (Theory, Course design) is considered as the main tool for formation of professional competence of future ship engineers. The tools of the e-course include the following: H5P, HotPot, IMS content package, SCORM package, URL (web link), Database, Choice, Wiki, Glossary, Tasks, External tool, Book, Label, Survey, Workshop, Page, Folder, Quiz, Lesson, File, Forum, Chat. It is noted that elements such as messenger, Task activity, Forum and Chat provide feedback on the e-course, which is very difficult to organize in quarantine. It is noted that the use of e-courses has a number of advantages that help improve the quality of teaching professional disciplines. The advantages include: flexible class schedule; the ability to view lecture materials as many times as each student needs individually; a more effective way to study disciplines; availability, etc. However, the courses also have disadvantages, such as the need for a high level of motivation and self-discipline. In our further research it is planned to analyze a mixed model of teaching professional disciplines to future ship engineers on the basis of integrated courses at the Maritime College. Key words: professional competence, ship engineers, e-courses, Moodle, maritime professionals.