Hiring a Finagle developer can be a strategic move for your business as they can help scale your systems efficiently. Finagle is a protocol-agnostic, extensible RPC system which supports a variety of protocols and is heavily used by Twitter, offering fault tolerance and load balancing. A Finagle developer can help in building distributed systems that are highly scalable, maintainable, and resilient to failures. Their expertise can aid in creating systems that can handle vast amounts of data traffic, ensure smooth service-to-service communication, and provide a seamless user experience, ultimately driving your business growth.