[mooted1]

as someone that has complained about a lot of uber's resume driven development (see comments), I can attest that this system is

a.) necessary, and saves the company millions

b.) a simplification over the ... unusually ... architected system that came before and did not scale.

there's a lot of junk technology at many large tech companies, but scaling problems /are/ real when you have hundreds of millions of users and have demanding performance and reliability requirements. RAMEN is a differentiated and necessary part of Uber's infrastructure, even if that can't be said of a lot of uber eng blog posts.