Sinch is seeking a Full Stack Engineer to join their cloud communication platform team, which is used by 8 out of 10 leading tech giants in the US and handles 145 billion API transactions yearly. The role focuses on enhancing both backend and frontend applications within the Provisioning domain. The ideal candidate will work on server-side logic and frontend interfaces, utilizing Java for backend and modern JavaScript frameworks like React for frontend development. The position requires strong collaboration skills and expertise in improving code quality, optimizing workflows, and resolving technical challenges. The platform's impressive scale and complexity offer an exciting opportunity for developers who want to work on a system that can reach virtually every mobile phone globally in seconds.