I think calling someone, including yourself, a “junior” engineer can have a negative effect. Let me explain:
The label is very black and white and that’s not how the world works. There is a wide range of knowledge involving being an engineer; You are good at some things and less good at other things. I am sure that a “junior engineer” is much better at some things than a more senior engineer who has worked for a long time in the industry. “Junior” implies that you have little knowledge about all the things. Instead of saying “[…] as me, who is quite Junior”, say something like “[…] as me, who know less about X”. By avoiding calling yourself “junior”, you have one less mantra repeating that you know less than most people — and you avoid getting stuck there.
Similarly, calling someone else “junior” can have a similar effect, so I avoid it.
Finally, my official title these days is “senior software engineer” but I never call myself “senior” ever except maybe in a sales call with a customer. I am simply “an engineer”. Possibly a tenured one. And I expect my knowledge to shine through the questions I ask, the answers I give, and the things I build. That’s what we should value. IMO, titles are mostly for engineering ladders and salary settings. Don’t let your role title limit your growth.