There are continuing education courses designed for full time working professionals that could be relevant. NYU has a bunch. I am sure other institutions that are physically closer to your friends location offer a combination of online and in person courses. Some are certificates, some not.

I would also recommend books on devops and various methodologies (agile, etc that are in vogue now), your friend should also get a list of all the software the team might be using to manage their work (bug tracking, issues, roadmap planning, etc) and get trained on them by those software companies or their certified partners.