Confessions of an Unreal Engine 4 engineering firefighter
The amazing thing to me is that now people can make games without a bunch of great engineers.  Back in the day when we made Battlezone we had at least four really amazing engineers (one was a Masters in CS from MIT, one wrote early 3d workstation code, UCLA, Cal Tech CS degrees).  In those days you needed people like that to just 3D to work in Windows.  Direct X helped a lot.  Unity and Unreal have made things we couldn't have dreamed of possible.