Software Engineer (Mobile)

Radar Labs (Headquarters: New York City)

Mobile iOS Android Swift Kotlin Objective-C Java SDK Geolocation Geofencing Ultra-Wideband UWB Sensors Battery Optimization Location Services Core Location Mobile Engineer

**About Radar Labs:**

Radar Labs is the #1 geolocation platform, offering geofencing, maps, and geolocation compliance in a modern, cost-effective platform. Our APIs and SDKs power location-based experiences across hundreds of millions of devices globally, processing over 1 billion API calls per day with 99.99%+ uptime. We're based in NYC with our HQ in Union Square. Our main languages are Rust and TypeScript, with Python, Scala, and Terraform used in mobile and offline pipelines.

**The Role: Software Engineer (Mobile)**

We are hiring a Mobile Engineer to join our team in New York City. You will work on Radar's open-source mobile SDKs (iOS and Android) used by thousands of developers and installed on hundreds of millions of devices. You'll tackle interesting challenges like achieving precise indoor location (leveraging Ultra-Wideband and other sensors) more accurately than native OS capabilities, and building mobile infrastructure that automatically optimizes battery life and location accuracy for different use cases.

**Responsibilities:**

*   Design, develop, and maintain Radar's iOS and Android SDKs.
*   Implement features related to location tracking, geofencing, trip tracking, and sensor fusion (including UWB).
*   Optimize SDKs for performance, battery efficiency, and accuracy.
*   Work on systems for remote SDK configuration and self-optimization.
*   Collaborate with backend teams to integrate SDKs with Radar's APIs.
*   Engage with the developer community using our SDKs.
*   Write high-quality, testable code in Swift, Objective-C, Kotlin, and Java.

**Technical Skills:**

*   Strong experience in native mobile development for iOS (Swift, Objective-C) and/or Android (Kotlin, Java).
*   Deep understanding of mobile platform location services (Core Location, Android Location Services).
*   Experience with mobile sensor APIs (Accelerometer, Gyroscope, Magnetometer, Bluetooth, UWB is a strong plus).
*   Understanding of mobile battery life optimization techniques.
*   Experience building and distributing mobile SDKs or libraries.
*   Familiarity with mobile testing frameworks.
*   Experience with cross-platform frameworks (React Native, Flutter) is a plus but not required.

**Ideal Candidate:**

*   Passionate about mobile technology and location services.
*   Deeply understands the nuances of iOS and/or Android platforms.
*   Excited by challenges like sensor fusion and low-level optimizations.
*   Focuses on developer experience and SDK quality.
*   Collaborative and able to work effectively in a fast-paced startup environment, embodying our values: Walk a mile, Push the pace, Play offense, Raise the bar, Enjoy the ride.