When I was starting my career, I expected to be a programmer. That's what people who wrote the software were called. At some point they adopted "developer" instead, shunning the programmer label. Now I see software engineers has replaced developer in many organizations. I'm not sure the job is much different than it was in 1990, other than the specific technologies used.
The DBA used to do a lot of system administration-type work on database instances. Check logs, set security, run backups, and maybe look at some queries. However, in many cases, their work was limited to things running inside the database software, or the database software itself (patches, related configuration for the host OS, etc.). I saw recently that DBAs have started to adopt the data (or database) engineer label as a new job title. Presumably, this pays more because, well, it sounds like it should. Data Professional sounds more comprehensive and skilled than Database Administrator. Database Engineer sounds better than both.
Read the rest of DBA to Data Engineer