Question

Is there a term specific to development that describes a company that has developed its own processes for development? More specifically, poor development practices, management, processes and QA testing that is also difficult to learn. Proprietary processes that do not carry over to other work environments.

Sometimes even subjective ideas become so ingrained they are viewed as true or false.

Answer 1

Not sure what your purpose is but I would go for a sentance rather than a single word, something like,

opaque development practices that result from a management perfunctory
to all but its commercial secrets. Less than the sum of its parts.

A little less strong:

opaque development practices that are encouraged by a management that prioritizes novelty over practical expediency.