I am a bit concerned too, the current state of tech is nowhere near to replace a senior engineer, but where it will be 5 years from now is a scary thought.

Yesterday I tried to get GPT4 to generate me a Dovecot Sieve filter to move .ru email to Junk and mark it seen, it failed 3 times and hallucinated some syntax that looked plausible, but actually is not supported by Dovecot. My hope was that I would not have to spend 15 minutes Googling and could get an answer faster from GP4, but in this case GPT4 did not succeed.