Staff Software Engineer (Messaging Protocol) - Fully remote (Namer/Latam)

10+ years of professional experience as a staff-level software engineer. Expertise in mobile development with Kotlin, Swift, React Native, or C++, including production-ready SDK delivery. Solid experience with Rust or strong interest in learning Rust and building Rust-to-mobile bindings. Proven experience developing communication protocols, SDKs, or developer-facing APIs with focus on performance, scalability, and security. Familiarity with adversarial systems design and security risk mitigation. Prior open-source contributions and public technical communication experience.

Build and maintain mobile SDKs for iOS, Android, and React Native, implementing Rust-to-mobile bindings. Develop and enhance the encrypted messaging protocol, including multi-device synchronization and scalable content types. Collaborate with teammates to design systems, evaluate trade-offs, and implement improvements balancing security, scalability, and efficiency. Contribute to open-source initiatives, ensuring SDKs and APIs are intuitive and well-supported. Engage in technical leadership, guiding architectural decisions and best practices for messaging protocols. Troubleshoot complex technical issues and optimize developer-facing tools for reliability and performance. Mentor junior engineers and contribute to knowledge sharing across the team.