Impulse Space interview questions

Initial HR phone call took about 30 min, then a technical interview on how I would go about certain projects. Overall not incredibly difficult, more so how I would approach a problem. This was also about 30 min

Very rushed initial interview with HR. They did not have any questions prepared and made up questions as they went. Then had a 1 on 1 technical interview with the lead RF engineer. They did not ask any questions about fundamental RF principles like impedance matching or S-parameters. Asked a very general question to tell them about myself and my projects. Then came up with questions based on the components I mentioned. It seemed both interviewers were winging it and coming up with questions on the fly.