I wouldn't try to get into. I'm in my 30s and age discrimination is real. Nobody wants to hire a 30 something entry level engineer. They dont even want 30 something mid-level engineers. I know because I have a disability that seems to have capped me at these levels, I'm about to be fired, and the job prospects look abysmal.
The hard part is proving it. They’ll say it’s culture fit, or there’s a more qualified candidate. Being fired for any reason other than the real reason gives them indemnification should you say otherwise.