Industry can be different from universities. There is always noise involved, nothing fits the mold exactly. The problems are challenging, and I enjoy the teamwork involved. I thoroughly enjoyed all my numerical analysis courses and they've all come into play at one time or another. A strong background in linear algebra with the basics of numerical analysis is extremely helpful.
Men are much less shy about speaking up in meetings and interviews.
Women are less likely to ask questions or question what has been said. So far in my career I have not noticed any problems because I'm a woman. I've been fortunate in that I work 4 days and week and still managed to get promoted and get raises.