Roseline was in the educational field for over 20 years. She has conducted local and overseas trainings in the areas of classroom facilitation, differentiated learning, etc. She has been involved in courseware development work such as Agile as a Business Strategy, Business Model Canvas for Strategic Development, Digital Marketing, Blockchain Technology, Technology Scanning, Technology Application, Delegates and Participants Management, MICE, Learning and Development, etc. Roseline is also actively involved in the design and development of online courses. Some of the online courses developed included IoT, Asset Management, Robotics and Automated Application, Technology Application. Roseline holds a MEd (SPED), BA with Dip. Ed, ACTA & DACE qualification.