Software is getting cheap. Deployment is not.
For most of the history of software, the expensive part was writing it. Companies organized themselves around that scarcity: product to decide, engineering to build, sales to explain, support to absorb the difference. Every layer existed because the skills on either side of it didn't transfer.
AI collapses the cost of the middle. Code is no longer the bottleneck. What remains scarce is the person who can sit in a real operation, understand what is actually broken, decide what should be automated and what shouldn't, build it against the systems that are really there, prove it works, and say what it was worth in terms the business understands.
That person has a name now. The Forward Deployed Engineer started as a job title at AI companies. It is becoming the shape of engineering itself.