The role focuses on building and stabilizing a unified API architecture that underpins multi-channel messaging, with emphasis on robust iMessage and WhatsApp integrations to deliver a reliable customer experience. It involves collaborating with Daniel Tian's and Sebastian Scott's teams to address WhatsApp stability challenges, implement smart routing and line management, and establish migration and backup processes to prevent outages. With dual product launches planned in early May and ongoing capacity scaling, the role aims to accelerate feature rollouts, double line counts monthly, and reduce downtime across channels. The position is onsite in San Francisco and requires urgent hiring of specialized engineers—Objective-C developers, DevOps engineers, and macOS specialists—to support infrastructure and reliability. Additionally, the role involves coordinating with CTO-level stakeholders to refine integration workflows and share expertise across teams, ensuring a smooth go-to-market while maintaining a strong customer experience.