Senior Mobile Engineer - Fanatics Markets

fanaticsfbg; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

fanaticsfbg is seeking an experienced Android/Kotlin Multiplatform engineer to shape a cross-platform mobile product. You will ship features end-to-end across Android and shared logic, collaborating with product, design, QA, and platform teams to ensure pixel-perfect, reliable experiences.

You will work on multi-module architectures, connect UI to shared business logic, and mentor junior engineers while participating in on-call rotations.

Qualifications

• Five or more years building scalable Android apps with MVI architecture.
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Responsibilities

• Build and ship production features across Android and shared KMP layers, owning work from design through deployment with minimal oversight.

Skills

Android development

Kotlin

MVI architecture

Kotlin Multiplatform

Compose/Compose Multiplatform

Gradle multi-module

CI/CD

Agile/Scrum

Tools

KSP codegen

Koin DI

Job description

Role overview

Shape a multi-platform mobile product built on Kotlin Multiplatform and Compose Multiplatform, shipping features end-to-end across Android and shared business-logic layers. The role combines deep hands-on engineering with architectural influence in a fast-moving product environment, where the bar for quality, consistency, and velocity is set deliberately high. You will work alongside product, design, QA, and shared platform teams to deliver reliable, pixel-accurate experiences across targets.

Responsibilities

• Build and ship production features across Android and shared KMP layers, owning work from design through deployment with minimal oversight.
• Connect Compose Multiplatform UI to shared business logic through clean MVI state management across core product domains.
• Contribute to a layered, multi-module architecture, respecting module boundaries and shared platform contracts.
• Implement against declared interfaces from shared platform teams, keeping app-specific logic cleanly separated.
• Collaborate with product, design, and QA to deliver consistent experiences across multiple platform targets.
• Write testable Kotlin using coroutines, flows, KSP-based codegen, and consistent dependency injection patterns.
• Review code with attention to module boundary discipline and build system conventions.
• Participate in an on-call rotation and mentor less experienced engineers.

Requirements

• Five or more years building scalable consumer-facing Android applications with strong command of MVI architecture.
• Deep Kotlin proficiency, including coroutines, flows, idioms, and best practices.
• Hands‑on experience with Kotlin Multiplatform in a multi-module codebase.
• Practical experience with Compose or Compose Multiplatform and design-system-compliant UI.
• Proficiency with Gradle multi-module projects, including convention plugins and dependency management.
• Familiarity with CI/CD pipelines and automated mobile testing practices.
• Clear communication and a track record of consistent quality delivery in Agile or Scrum settings.

Nice to have

• Compose Multiplatform experience spanning Android, iOS, desktop, and wasm targets.
• KSP-based codegen and dependency injection tooling such as Koin in a KMP environment.
• Feature flag systems and mobile observability tooling.
• Exposure to backend services, distributed systems, or event-driven architectures.