Being an experienced hire: I come from a diverse Banking background and am looking to join BigTech - Any suggestions?

A couple things off the top of my head:

• Network, network, network - In this economy, you pretty much need a connection on the inside or your application is dead in the water. Every Big Tech recruiter has their prime choice of candidates, so the vouching signal is extremely important. I highly recommend going through this: "How to get referrals?"
• Temper expectations - The vast majority of people looking to make it into Big Tech right now (95%+) are not going to be able to do it. In fact, you can even pass the entire interview (i.e. get a "Yes" on every round) and still not get the offer because there was some mega-genius who also applied and got a "Strong Yes" on every round. With all the layoffs, you are competing with 100+ brilliant laid-off FAANG engineers for every Big Tech opening. So expect a lot of rejection and be okay with it. Never forget: You don't need to go to Big Tech to be a good engineer. And just because you're in Big Tech doesn't mean you're a good engineer.
• Be patient - Careers are a marathon, not a race, and this crappy economy is not going to last forever. The tech industry tends to recover faster than people think, as this field is filled with so many brilliant people. If you really want to get into Big Tech and you work hard, I truly believe that you can do it. It might take 1, 2, or even 5 years, but you will be able to do it. You just have to be patient and continue extracting as much learning from your current situation as possible. Never stop growing.

For getting into Big Tech, I recommend these resources too:

• [Masterclass] Should You Work At FAANG? - What Big Tech Is Like For Software Engineers
• "How to figure out what's going to be on an interview?"
• [Taro Top 10] Breaking Into FAANG