Pros
Neat product to work on. Awesome to see consumer reactions to the vehicles. Flexible schedules and vacation policy.
Cons
Company is defined by chaos and constant change. Leadership is incapable of providing a coherent overall strategy and sticking to it. The result is many organizations working in silos with poor communication. Projects are constantly started, paused, cancelled, and/or restarted and contractors are whipped around. Rivian doesn't go far in building relationships and trust with external partners. High turnover with frequent hiring and firing cycles. Layoff cycles are brutal with little notice. It's a matter of wrong place, wrong time. Also, there's significant arrogance amongst the tech/startup bros and ex-Tsla crowd. If you don't come from one of those groups and don't already have an internal network, g'luck. Lots of not so senior employees in senior positions because because they got buddies already in the company.