OneSignal is a leading omnichannel customer engagement solution, powering personalized customer journeys across mobile and web push notifications, in-app messaging, SMS, and email. On a mission to democratize engagement, we enable over a million businesses to keep their users - including readers, fans, players and shoppers - engaged and up to date by delivering 12 billion messages daily. As an SDK-centric company, we’re constantly evolving our offerings and improving the Developer Experience across the board. With that objective in mind, we are looking for experienced Software Engineers to join our SDK Team. The SDK Team is responsible for the components of our software stack that we ship to our customers. These include client libraries for our REST API, CLI Tools, libraries embedded in customer applications(e.g. the Android SDK), and associated tooling and resources. Understanding how to better serve our developers is part of the work we do in the SDK Team.