The main purpose of our study is to design a new multimedia learning platform to help the staff acquire new skills for their professional progression. In particular, this new platform is aimed at learners who do not appreciate conventional training methods, and who prefer training with new media supports personalized to their own background. From a learner's point of view, the platform provides semantic searches for media supports and proposes automatically the most appropriate video according to the user's personalized pathway. That video can be rendered according to the user's profile for enhancing specific information. In addition, the platform allows users to add new video resources, which will be automatically annotated, and to update learning domains. The present paper proposes a general design of the platform and the main ideas for addressing the arised research problems.