As an online interior designer, your responsibilities are to meet with clients, answer questions about interior design for their home or commercial building, and use design software or rendering applications to develop project ideas for client spaces. Your specific duties may include reviewing a client’s floor plan or layout, reviewing pictures of the space, and developing mock-ups for them to review. You can also help them connect with vendors who help them decorate their spaces. These include florists, furniture retailers, and lighting designers.