We have been working on AngularJs for last 4 years, and since Angular2 came in beta in 2015, we have been working aggressively on it. We are really excited about how angular has come this far in a short while.
We are aggressively doing open-source projects @aviabird. You can see our work here Aviabird. These projects have really helped us in improving our skills to a new level. we love the feedbacks from community on our projects.