Not just a multi-cloud, but also managed kafka and a managed db across a multi-region deployment. Regions can fail, your job needs persistence and you need to maintain the state of the message in the db..

oh!! have you also thought about the right queue semantics? Do you want your job to trigger exactly one, at least one or at most once? What happens if the previous job is still running when it is time to trigger it again? Is it 15 minutes from start to start or end of previous to start of next? How about metrics? Is your process idempotent?

So, the right answer is 42 unicorns.