I am a senior software engineer working in enterprise SaaS software. I have had informal mentors on previous teams/at previous companies, and I have also been an informal mentor to more junior engineers. At this time, I am the most experienced member on the team, and though I still learn a lot on my own through taking on more responsibility, I feel like my growth has started to plateau due to a lack of a more experienced/senior engineer on my team.
My manager has suggested that I reach out to some of our principal engineers/architects and begin having 1-on-1s with them to develop a more formal relationship. My manager is willing to assist me with this.
What I am unsure of is what my goals should be here. Obviously I want to continue growing and getting better, but I am unsure of how that's going to happen simply through 1-on-1's vs "hands on the keyboard" activities.
Any thoughts on how to establish this kind of relationship in a large company (hundreds of engineers dozens of teams)? What should I be looking to get out of this kind of relationship if it is with someone what I don't normally work with and we work on vastly different parts of a system or even different products?