I have been a software engineer for 8 years and not once I have had a jira ticket handed over to me by a senior engineer.

I have worked in startups before and currently work at bkng, and have friends at uber. Everywhere it is expected that the engineers will create their own tickets and refine them with the team. If you are in a product facing team, your PM could even help you with a PRD but I have not seen one in the last few years.

By contrast I have not worked anywhere that engineers originated tickets. And thankfully, only one place that used Jira (but the engineers didn't interact with it).

Tickets came from the product side, after being evaluated and prioritized. Engineers got involved with estimating effort (in "points") and doing the actual implementation of course.

My last job was like that, it was miserable having no agency. The whole team was from fang companies and were all ok with the tell me what to do dynamic.

Do you think it's acceptable to do the work of multiple full time positions? I can't imagine it's very sustainable, nor healthy for you (both body and soul).