Software development in banks is
far different than in tech firms.
In banks, you have a working legacy system that's existed for 15-30 years, written in whatever the languages and frameworks popular that were popular then (J2EE, etc), and the guys who have written it are long since gone. Your goal is to make sure the system doesn't break.
In product-focused tech companies, you have an in-progress system that you're in the process of building. It was written 18 months before by the guy who sits next to you, and was written in a framework / language that is much more modern (Python, RoR, Node), and your goal is to build new features on top of it.
You're at a fork in the road. Please, keep interviewing.
