> but there is no success; a functioning billing system is just what is expected. It's all downside and no upside for you personally.

I just wanted to say thank you for giving a robust voice to the frustrations I've felt after building multiple billing systems. This and your linked comment were a pleasure to read, and simply spot on.

Coincidentally, I am also pursuing a career transition toward data analysis. If I understand correctly, you are lamenting "data engineering" in contrast to "ad hoc data analysis deliverables"?