Being an engineer at Twitter is much more akin to an enterprise like a bank or telco.

You need to be a team player and work across different groups e.g. Product, Testing, SRE etc in order to successfully get features into Production.

So being a talented engineer is useful but having high emotional intelligence and being able to negotiate and collaborate is far more important.

I'm surprised more people don't realize this. It happens to all big corp.

You mean talk more and code less?

You don’t need a social science background to fix Twitter.

I think abnormal psychology or perhaps criminology would be helpful in understanding the current Twitter decision making process.

Define "fix." Twitter is a tool used by extremists to reach massive audiences. Some of those extremists have socially destructive and violent objectives. Responding to harassment and hate speech involves understanding the psychology of harassers and racists so that incentives can be designed not to reward those behaviors. IMO, "fixing" Twitter isn't just about fail whales and 500 errors.