Ask HN: Software Jobs with Less Collaboration?

Do you know of potential software areas where the work isn't as collaborative as it is in your typical Scrum/Agile team? If given a choice, I would very much prefer to be left alone to work on a solution, and not have to constantly interface with the rest of the team over trivialities. In the case of my current job, I have a strong suspicion that communication overhead is so large that the work of our 10+ people team could be done by one or two folks, if we were just allowed to work in an efficient manner (i.e. not sharing every bit of knowledge with everybody else, not setting up and maintaining baroque testing and CI/CD pipeline etc.)

I'm thinking that writing support software for scientific research at universities could be like that (partly because they can't just afford to hire teams to do the job, so a single guy often must suffice). Do you have any other ideas?