Developer Experience is gaining in popularity. Your clients are internal and your objective is to remove obstacles, create shortcuts, keep everyone happy and productive. Lots of it is communication, finding out everyone's pain points and discussing what is technically feasible to ease that frustration - so that may tickle your people/support string. Things that are/can be part of DevEx are DevOps/Platform Engineering/Infra/CI/CD, QA, IdP, internal frameworks, onboarding, etc. Fun stuff imo.