What is the best way to store job information? 1000+ job roles and positions and every job has its own data, legal implications

I recently came across this problem where I have 1000+ job roles and positions and every job has its own data, legal implications, experience requirements, and so on. I was wondering how HR managers in large firms manage such data? Are they still using physical folders and files? Or is it being stored in word documents?
If anyone has gone through the same problem then can you please share your experience?