I think your connections are probably stronger than they appear. I'd be more than happy if a former colleague reached out to me about a job with my company. Even if is was somebody that I never really socialized with.
I don't think professional connections are something that need to be maintained in the same way that personal ones are. If someone remembers you and thought you did a good job, I doubt they care that you only reached out because they happen to want a job where you're currently working.
I don't think professional connections are something that need to be maintained in the same way that personal ones are. If someone remembers you and thought you did a good job, I doubt they care that you only reached out because they happen to want a job where you're currently working.