I started a project that turned into a mulitibillion dollar source of revenue for the company I worked at. I was just an engineer at the company so I didn't get

I started a project that turned into a mulitibillion dollar source of revenue for the company I worked at. I was just an engineer at the company so I didn't get rich or anything but I would say that was pretty useful. I started another project that turned into 8 figures of revenue but it was shut down for being too small.