Senior iOS SDK Engineer (Remote: Europe)

We're looking for a Senior/Staff iOS Engineer with strong experience building public-facing SDKs to join our team. Requirements • 7+ years of professional iOS experience • 3+ years building and maintaining an iOS SDK (analytics, crash reporting, payments, or similar) • Familiarity with symbolication/dSYMs, stack unwinding, or binary formats • Strong knowledge of Swift, Objective-C, and the iOS runtime • Deep understanding of app lifecycle, background modes, memory management, concurrency, and thread safety • Experience with public SDKs, including versioning, API design, and handling customer edge cases • Solid expertise in networking: URLSession, retries, async flows, caching, connection management • Strong debugging skills with Instruments, OS logs, crash logs, and performance tools • Hands-on with Core Data or SQLite • Experience working with CI/CD for SDKs (SPM, Cocoapods, XCFrameworks)