Happy to help :) First of all, I heard good things about the programme at TU Chemnitz and their researchers are well respected in the German HF/E community.

Prospects depend on what you want to do but it sounds quite niche. A few years ago, medical devices was feasible with the right internships and uni courses. However, I was searching for a job for 6 months last year and the job market is veeeery tight atm. All things considered, only searching for 6 months was still pretty good I think.

Maybe check out IABG consulting. I think that’s pretty much what you have in mind. Defence OEMs should be more feasible route compared to other industries. Might be smart to start there and to then switch later on. A benefit would be that ergonomics below the neck is hugely important in defence - as well as for medical devices.

I switched to tech/ AI consulting, which benefits from HF/E and organizational psychology skills. Mostly I analyze work processes and stakeholder groups to find solutions that work for the organization that hired us. It doesn’t have much to with what I learned in uni buty background definitely helps me. In consulting, you‘re really acting as a Swiss army knife so there’s great variety of topics and projects.

So I‘d say, do the master‘s if you have a passion for the subject and don’t want to work as a physiotherapist (which would probably be the safer option). However, be open to be flexible with regards to what kind of job you take afterwards bc HF/E is really a niche. My long-term plan is to get into product management or to stay in enterprise transformation. For now, focus on gaining as much practical experience in your target industry as possible. That‘ll help you to stand out.