I’m ready to move my current chat application to the next level and need a developer who can add new functionality while shaving precious seconds off load and delivery times. The headline feature on my wish-list is seamless, in-app video calling that plays nicely with the existing chat experience. Alongside that, I want the core chat flow tightened up—messages must land instantly, and the app itself should spring open far faster than it does today. You’ll be working in the live codebase, extending the present architecture rather than rebuilding it. Clean, well-commented commits and a short test plan that shows message delivery and app launch benchmarks before and after your work are essential for acceptance. When you reach out, please link to past projects where you introduced comparable real-time features or performance wins; seeing what you’ve already shipped will help me gauge fit quickly. I’ll supply full repo access, current performance metrics, and a quick rundown of the feature roadmap once we connect.