I'm not/wasn't a member of the Servo team, but have collaborated with them, and if you get the opportunity to work with them I cannot recommend it highly enough.
They have the kind of deep technical knowledge and ability to solve challenging problems you'd expect from a research group, coupled with the skills to make pragmatic tradeoffs and fix the complex real world problems needed to ship software. More than that, they are one of the most welcoming and friendly teams I ever worked with. The culture they created allowed them to take inexperienced new contributors and quickly ramp them up to a place where they were confident to solve challenging problems. Working in that environment and seeing what's possible has really raised my bar for workplace culture and mentorship.
They have the kind of deep technical knowledge and ability to solve challenging problems you'd expect from a research group, coupled with the skills to make pragmatic tradeoffs and fix the complex real world problems needed to ship software. More than that, they are one of the most welcoming and friendly teams I ever worked with. The culture they created allowed them to take inexperienced new contributors and quickly ramp them up to a place where they were confident to solve challenging problems. Working in that environment and seeing what's possible has really raised my bar for workplace culture and mentorship.