Senior Mobile Engineer

Fanatics Markets is the real-money prediction and trading app where you can invest in moments you care about. Built on a secure platform, we let users predict real-world outcomes and trade on events they actually follow — from sports and entertainment to political elections and beyond. Our mission is to redefine how fans engage with the moments and markets that matter most. We're looking for the right people to help us build the future of prediction markets.

As a Senior Mobile Engineer, you'll contribute to a multi-platform app built on Kotlin Multiplatform, shipping features across Android, iOS, and additional targets from a shared codebase. You'll own complex work end-to-end, write code that sets the quality bar for the team, and help shape architecture decisions in a fast-moving product environment. Our engineering strategy centers on KMP and Compose Multiplatform to deliver high-quality, consistent experiences across platforms — and the engineers who build it are expected to help keep that bar high.

- Build and ship production-quality features across Android and shared KMP layers, taking ownership from design through deployment with minimal oversight

- Implement features across core product domains — connecting Compose Multiplatform UI to shared business logic through clean MVI state management

- Contribute to a layered, multi-module architecture, respecting module boundaries and shared platform contracts

- Partner with shared platform teams to implement against declared interfaces, keeping app-specific logic cleanly separated from shared platform concerns

- Collaborate with product, design, and QA to deliver reliable, pixel-accurate experiences across multiple platform targets

- Write testable, well-structured Kotlin leveraging coroutines, flows, KSP-based codegen, and dependency injection patterns consistent with the team's standards

- Conduct thorough code reviews, maintaining module boundary discipline and build system conventions

- Participate in the on-call rotation, helping diagnose and resolve issues across platforms

- Mentor junior engineers and contribute to a culture of continuous learning on the team