I have to disagree. SRE=SE=SA. What they exactly do depends on the job. Some can write application code, some cannot. But they are all the same thing. I've work

I have to disagree. SRE=SE=SA. What they exactly do depends on the job. Some can write application code, some cannot. But they are all the same thing. I've worked at SRE jobs where there was no application code writing, and I've worked at SE jobs where there was application code writing.