First, be careful using the phrase “master’s in engineering” or “master of engineering”, as they can have very specific, non-funded meanings.
Are the admissions notices from the school as a whole or the department? The availability and process behind MS funding is highly variable depending on each department so unless the department has shot down any chance of funding then I wouldn’t worry. Even then it’s not a set process, as individual professors have a lot of latitude in deciding who they fund and how much they fund them. It may be that the school or department simply don’t provide funding for MS students but individual professors do.
TAships are generally funded by the department and are likely the funding referred to by the admissions letters. The better bet would be RAships or external fellowships, which should all be within reach of MS students. It’s unlikely that most schools will tell an MS student they have funding ahead of time because they simply don’t know what professor will be their advisor and the schools (and most departments) don’t fund MS students as a matter of policy.
If she were to work for a few years the better approach would be to just get the employer to pay for the degree. It’s usually not a thesis-based degree in that case but that’s not a huge deal if the goal is industry anyway.