This is a tangent, and not a slight on your or the OPs manager, but important and advice to other: The more important /senior /influential person you report to, the more room you have (for interesting work - better stuff gets delegated, growth, someone to learn from, salary, promotion, other stuff). And often, because of a larger and larger gap, they'd often be more appreciative of the freshness and perspective you could bring.

"Your grade is less important than the person you report to" I've heard said, and I've seen it work out in every aspect of the above (even in larger, 200000+ people organisations).

My advice, for getting a job in large corps: Report to someone at least 3 levels above you, preferably 5. The gap is hugely fulfilling, and at that level, they can carry you where they go / provide awesome recommendations to their also senior network if your direction is different.