I've always had front-end and back-end owned by the same team, and in the same repo, despite being in separate languages. The repo has a single build script whi

I've always had front-end and back-end owned by the same team, and in the same repo, despite being in separate languages. The repo has a single build script which builds all parts of the project, whatever language they are in. Implementing almost any feature involves touching both front-end and back-end code, so people stay fresh. All of this seems like table stakes to me. Maybe some organisations have separate teams working on the two parts of an application, which honestly just seems stupid, but that's not a necessary consequence of using different languages.