"When interviewing for a position as a UI designer, be prepared to answer questions about your work philosophy, how you strive to work with other team members, and be asked about how you would improve specific examples. Have a portfolio ready to show off your previous work and be enthusiastic and passionate about your work."
Who determines user standards, you, the company, someone else?
Usability standards are not established by a person or place, but it is what is adopted by the user community at large. It is difficult to change or establish new standards, but it is more important for usability to follow standards that are studied and identified by usability experts, such as Jakob Nielsen or Steve Krug.