I've been referred by a friend and I'm going to interview for a job as a tester at a company that does medical software.

Listen to your tone, should do the main work is software functional testing. Simply put a few points: 1, must have serious, careful, responsible, patient work quality; 2, familiar with the software testing process, common test methods, test case design, etc.; 3, with the ability to write test plans, test cases, test reports, mainly write test documents; 4, the most important point, you must be very familiar with some of the business knowledge of the health care industry, with the ability to communicate fluently. If you want to do automation testing, performance testing, you have to learn the relevant knowledge and tools, and need some time to master. I have interviewed many testers, if only functional testing, the requirements are not so high, the training under the grind is generally competent.