Decentralization of engineering talent is important for so many reasons but two, in particular, stand out.
First, hiring strong engineering talent is the biggest challenge for any engineering team; instead of focusing on only one geographical region, hiring can be parallelized across geographies.

Secondly, decentralization brings a diverse perspective, representing your customers’ voices. At Twitter, approximately 19% of our active customer base is in the US. It makes sense to represent our product that is used globally, with global and diverse perspectives.
Twitter has been intentional about diversification and decentralization for many years, from being an early adopter of hybrid ‘work from both’ work environments before the pandemic to becoming the first major US company to announce permanent remote work plans in 2020.