[olivierva]

I couldn't agree more. I just got hired to 'productionize' some proof of concept developed by data scientists in jupyter notebooks. The first thing I did was hiring a Python developer (no data science experience) to start cleaning up the code and a devops to put the infrastructure in place. Second step: I went to the data science department and sat down with them and I taught them how to program properly: test driven development, version control, code reviews (git pull requests) and continuous integration. They all have PhD's so it's not that they would have any trouble learning anything new. They thought it was great. Result: all their new code now directly goes (via code review and CI unit/end2end testing) into pre-production and after sign off from the product owners into production (quite often the same day). I just do not understand why instead of trying to find the perfect person for the job people don't just hire someone to teach them how to do the programming part of their job properly. Good teams are cross functional, diverse and have a strong focus on transferring knowledge.