Career advice

Which role is likely to have a better future in terms of career growth? A data modeler or a data engineer? I have 7.5 years of experience with around 6 years of experience in data analytics/engineering and last 1.5 years as a data modeler. I have given interviews for both these rules in the last month and have got offers from mostly service based companies. But I am not sure whether to continue in this role or go for a masters in data science with a DE background. Please share your viewpoints