ABCD Pilot,
I dont think the "frozen ATPL" concept exists in the USA, and nor do other countries recognise it.
Also, right now, connections at "HR manager" level is practically of no use ... except perhaps to sneak your resume inside ahead of others WHEN VACANCIES COME UP.
Otherwise, to get in to an airline, you'll need to know someone really big and high up the order ... like VP, Director etc.