I want to work for a position that requires domain knowledge (for example, deep learning which is what I'm currently interested in). Or a job that I can make t

I want to work for a position that requires domain knowledge (for example, deep learning which is what I'm currently interested in). Or a job that I can make theoretical breakthroughs and those breakthroughs are connected with industry, can be productized . I'm sick of solving engineering problems. I'm working on a large code base with lots of people. the difficulty of my job comes from unfamiliarity and complexity. for example, I need to add features to some undocumented code, I have to debug it to understand it. or I need to hack a piece of existing code to add some feature in, because the feature wasn't previously planned in the architecture. these skills I gained via the job enable me to quickly understand complex code, but I don't think it's actual "knowledge".