Which short course helped you get hired? after 15 years as a machine operator

I saw that many postings ask for a specific certification. I would rather hear the honest version than the polite one. I am unsure whether employers value it. Did a certificate help you get hired?

Ask the course provider how many graduates get jobs and where. Honest providers can tell you.

The workforce centre told me about training funds I qualified for. It covered most of my course.