In the process of applying for a job with another company. It all looks fairly promising, but...

... they use SVN for source control 😫

I have a job where we're currently using ClearCase SCM and from that all I can say is that as long as they have a good process for the tools they use I don't think it matters that much.*

*I recognize it is important for certain things you might do day to day, but I wouldn't pass up a job I was interested in because of the source control.

We use SVN...

Tbh if you only work on site and don't have a hosted instance of something like gitlab it's about the same (until someone deletes your server, I'll admit). Even then we have a couple of code review tools that do similar stuff. We are thinking of moving to git, all said.

If you work remotely it can make huge differences.