Overall, this a well-written and comprehensive article. Since it's 10 min, I'd recommend including some friendly sentences between a couple sections encouraging them to keep reading.
Content nits:
"was expanding" our product offerings -> expanded
Start with systems thinking:
Wouldn't start a paragraph with "it." Would recommend using "it" in the 2nd sentence. "Building a payments system helps if you already have a centralized... It can be a huge initial investment..."
You don't need to capitalize Audit.
Spell out "2" in two months, "5" teams, 2 members of Lyft's Design team. An editor I once worked with told me you're supposed to spell out numbers till you get to 10.