Senior Mobile Engineer - Fanatics Markets
About the Team
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.
Overview
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.
Responsibilities
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
Experience and Skills
5+ years of experience building scalable, consumer-facing Android applications with strong command of MVI architecture
Strong Kotlin proficiency — coroutines, flows, idioms, and best practices — with the ability to apply and share these effectively across the team
Experience with Kotlin Multiplatform — comfortable developing and scaling shared business logic in a multi-module KMP codebase
Hands-on experience with Compose or Compose Multiplatform, building design-system-compliant UI across platform targets
Proficiency in Gradle multi-module projects, including convention plugins and dependency management
Experience with CI/CD pipelines and automated mobile testing practices
Comfortable working across shared platform and library boundaries — implementing against declared interfaces without leaking platform-specific logic into shared modules
Clear communicator able to articulate technical decisions to peers, product, and design stakeholders
Agile/SCRUM experience with a track record of consistent, quality delivery
Team-first mentality with a drive to raise the bar continuously
Bonus
Compose Multiplatform experience across Android, iOS, desktop, and wasm targets
Experience with KSP-based codegen and Koin or similar DI in a KMP environment
Familiarity with feature flag systems and mobile observability tooling
Experience with backend services, distributed systems and event-driven architectures
Depending on the role, your interview and onboarding experience may include in-person components, such as onsite interviews or Launching into Better: LIVE—a multi-day cultural immersion in New York City for full-time, non-seasonal hires. These sessions are designed to build connection and bring our culture to life, though specific travel and participation requirements will be confirmed based on your role and location. Your recruiter will provide clear guidance at each stage of the process.
For information about our benefits, please visit https://benefitsatfanatics.com/
#LI-Remote
#LI-AL1
Ranges will change based on country and state of residence, which are reflected in Geographical Zones defined by Fanatics Betting and Gaming. The range incorporates all of our Geographical Compensation Zones and is subject to change as the Zone associated with the actual offer is confirmed. In addition to the base and bonus, full-time employment, and more. For information about our benefits, please visit https://benefitsatfanatics.com/
Salary Range
$152,000—$200,000 USD