I'm an sde 1 at Amazon and been working there for 2 years. I have changed multiple teams during that time unfortunately. In every team, I have struggled with getting noticed by the team.
I have observed that the best performers talk about active tickets even when they are not on call. How do I balance between my task and working on extra tickets to get noticed?
What else can I do to get noticed apart from my own task and high sev tickets?
Here's how to think about extra tickets: you have to earn the right to do additional work. There's a famous startup quote from somewhere: "The reward for doing great work is to receive more work." This is very true in the tech industry.
Especially when you're new, focus on completing your work with high quality, and do it on-time or ahead of time.
Another nuance to your question is about how to multi-task effectively, which Alex covers here: How to improve at multi tasking at work?
I talk about this in-depth in our promotion course here: https://www.jointaro.com/course/nail-your-promotion-as-a-software-engineer/sell-yourself-claim-your-wins/
As a junior engineer, the communication "tax" will admittedly be initially large as you learn how to write concise, effective project updates. However, like with anything, you will get way faster at it over time, and the time cost will eventually feel quite natural and almost unnoticeable.
I mentioned it in the course lesson, but if there's 1 thing I recommend with status updates, it's to attach an awesome demo if you can 😉. If you're already recording thorough test plans (which you should), this shouldn't be too hard.