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.

That's a great recommendation but isn't it a bit late? The team were laid off. https://news.ycombinator.com/item?id=24128865

What absolute nonsense, Servo was the most important thing Mozilla was doing. If Mozilla isn’t making the most promising and competitive investments in its browser (e.g. parallel layout) what is it for? The Quantum project, which is tied to Servo, is the only reason Firefox is still competitive.

No it really wasn't. Nobody except tech geeks care about Servo. What Mozilla needs to do is to provide a privacy aware browser that doesn't inform Google (and everyone else) about everything we do online. They can easily go the path Microsoft took and use Chromium as engine. Had they focused on that, I think they would be in a much better position than they are now (wasting millions on projects like Servo and Rust). Don't get me wrong... I love Servo and Rust, but from a business perspective it's suicide.