Test Engie to devops doesn't seem like it would be a smooth transition unless you get in with a big company that allows for easy movement between roles.
Working in tech is great for getting a feel for the culture, but I don't really see transferable hard skills between, say, setting up AWS architecture with Python lambda functions and writing a test spec in Cucumber Java.
I've noticed some companies seem to want their devops guys to be senior level, though, so it could do some good to get that time in, but trying for jobs you actually want would be good too :)
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