You can be ahead of most technology peers by simply knowing the basics of accrual accounting. How to learn it? When working on a project, talk to the finance person you work with about the accrual process. They will be happy you asked. If they don’t help, google “when should I accrue an expense or revenue”
Once you get that down, you will want to spend a little time doing some NPV practice. When it comes time to getting your project approved, you want to show benefits in your NPV model. 99% of this is not the math around the NPV, that part is easy. The hard part is getting business partners onboard with supporting the benefits case.
Most finance people at large companies are mainly doing basic math, but doing it well and spelling out logic in a small program called a financial model. The best way to get good at this besides working in finance is to model everything you can. Small widget models are the key to building that skill