RUM Mobile Engineer (iOS/Android SDK Development)

Job Description:

We are looking for a skilled Mobile Engineer to join our Real User Monitoring (RUM) team. You will design, develop, and maintain mobile SDKs for iOS and Android platforms, enabling real-time tracking of app performance, user behavior, and crash analytics. This role is key to building high-performance SDKs that integrate seamlessly into our customers' mobile apps, with a strong focus on efficiency, privacy, and scalability.

Key Responsibilities:

• Design and develop RUM SDKs for iOS and Android to collect performance and usage data
• Implement automated data capture: crash reporting, network analytics, and user interactions
• Build lightweight and efficient APIs for event and session tracking
• Ensure SDK compatibility across major OS versions and devices
• Optimize SDKs for low memory, CPU, battery, and network usage
• Develop comprehensive testing (unit, integration, and regression)
• Collaborate with backend, product, DevOps, and customer support teams
• Provide technical support during SDK integration by customer teams

Requirements:

Education & Experience:

• Bachelor’s degree in Computer Science, Software Engineering, or related discipline
• 2–3 years of mobile development experience (iOS and/or Android)
• Hands-on experience building production-level apps or SDKs

Technical Skills:

• Proficiency in Swift and Objective-C
• Familiarity with UIKit , SwiftUI , memory management, and performance tuning
• Experience using Xcode , CocoaPods, and Swift Package Manager
• Strong command of Java and Kotlin
• Solid understanding of Android SDK, Jetpack libraries, and Gradle
• Experience with Android NDK and JNI is a plus
• Strong understanding of RESTful APIs, networking, and mobile performance profiling
• Experience with version control systems like Git
• Familiar with mobile app security and data privacy best practices

Preferred Qualifications:

• Experience with commercial SDK distribution and CI/CD pipelines
• Knowledge of observability tools, APM, OpenTelemetry, and analytics platforms
• Exposure to React Native, Flutter, or other cross-platform tools
• Familiarity with crash reporting tools (e.g., Crashlytics, Bugsnag)
• Understanding of privacy regulations (e.g., GDPR , PDPA )
• Ability to communicate in Chinese is a plus (to liaise with China team)