What you giveFull accountability
You own the outcome, not the ticket. There is no one to hand it off to, no process layer to absorb the failure, and no ambiguity about whether it was yours. When it ships, it is yours. When it breaks, it is yours. That is not a threat. It is what makes the work real.
What you getReal ownership
You make the calls. Not 'input on' the calls. Not 'alignment with' the calls. You read the signal, you make the judgment, you ship the decision. Senior ICs here have direct commercial impact. PMs run their own experiments. Engineers design the systems, not just the tickets.
How it feelsSharpening
The problems here resist easy solutions. The data is messy, the constraints are real, the scale is live. That friction is deliberate. You will not leave the same professional who arrived.