Two caveats for less-experienced engineers (whether by senority at a company or years in the industry):
* As a manager, I would prefer you to crush those ten easy tickets if you aren't up to the task of the hard ticket. If that hard-for-you ticket is easy for someone with more skill, and we're in a high profile incident, I am going to steer you away from it.
* As a manager, if you show me you can crush the easy tickets, I will find a way to guide you toward harder problems. Then, if you show you can do the harder problems, and those around you are in agreement that you are tackling those, then you have the leash to start swarming to issues.
Note that you can usually prove this within 1-3 months - I'm not talking about an extensive time of paying your dues here. But make sure not to try and skip a rung.