Senior Mobile Engineer - Kotlin Multiplatform

We're building a flagship cross-platform application on Kotlin Multiplatform (KMP) using Compose Multiplatform as well as SwiftUI. The ideal candidate will have a proven track record of developing and deploying native mobile apps using KMP technology.

Responsibilities

Shared KMP modules — You will write shared Kotlin Multiplatform code that provides significant, testable business logic and repositories; Compose Multiplatform UI and Native SwiftUI — You will write user interface code to utilize shared code modules; On-device AI — You will integrate artificial intelligence frameworks both on-device and remotely; Performance — Profile and harden app performance on real devices. Troubleshoot hard, technical bugs; Code review and collaboration — Review human and coding-agent diffs with equal rigor, contribute to project conventions, and mentor teammates. Improve the quality of delivered code

Requirements

Proven track record of developing and deploying native mobile apps using KMP technology; 4+ years of mobile development with shipped production apps on Android, iOS, or both; Strong Kotlin skills including coroutines and Flows; Demonstrated interest in AI engineering; Solid experience with mobile tooling and app stores; Strong mobile product instincts

Nice to have

Compose Multiplatform or strong Jetpack Compose experience, including understanding recomposition stability; SwiftUI experience would be beneficial, including comfort working at the Swift/Kotlin boundary via SKIE, Swift Export, and/or hand-written interoperability code; Experience working with Rust UniFFI, C++, and JS is a plus; Contributions to open-source ML/AI or KMP libraries is a bonus

Benefits

Competitive salary; Comprehensive health, dental, and vision benefits package; 401(k) match; Equity options; $200/month Health & Wellness stipend; Continuing Education support; $500/year Function Health subscription; Free parking for in-office employees; Flexible Time Off (FTO); Parental leave for eligible employees; Supplemental life insurance