Melbourne Polytechnic’s Diploma of Interior Design MSF50222 can let you turn your eye for interiors into a stylish and rewarding career. Designing and decorating a space is essential in this age of social media shares and mass production hacks, and the interior design industry is growing rapidly. Job opportunities in interior design have almost doubled since 2014. If you have an eye for detail and a taste for trends, you could use this qualification to establish your own interior design business or provide design consulting for high-end commercial and domestic clients.