Principal Mobile SDK Engineer (Navigation)

We are looking for a highly experienced Principal Mobile SDK Engineer to lead the architecture and development of our proprietary Navigation SDK. 

Unlike typical app development, this role involves building the core engine that powers navigation experiences. You will be responsible for wrapping and extending open-source native mapping engines, integrating our custom routing APIs, and exposing a clean, robust, and developer-friendly API surface for both Android and iOS platforms. 

You will work directly with the founders to turn our navigation logic into a reusable, high-performance SDK product. 

🛠 Responsibilities 

• SDK Architecture: Design and implement a unified navigation SDK architecture for Android (Kotlin) and iOS (Swift) that wraps underlying native mapping libraries. 

• Core Navigation Logic: Implement complex logic for turn-by-turn navigation, including route snapping, off-route detection, rerouting, and ETA calculation. 

• API Design: Craft intuitive, idiomatic, and thread-safe APIs for client developers. You are building tools for other engineers, so Developer Experience (DX) is paramount. 

• Performance Optimization: Optimize for battery usage, memory management (tile caching), and CPU efficiency during active navigation sessions. 

• Sensor Fusion: Work with raw GPS, accelerometer,