Senior Staff Engineer – Mobile
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Job Description
Senior Staff Mobile Engineer defining Kotlin Multiplatform architecture for Fanatics Markets, a real-money sports and event prediction app. Leading cross-platform mobile engineering across Android, iOS, and shared code.
Responsibilities:
- Own the multiplatform engineering strategy across Android and shared KMP layers
- Set technical direction and influence architecture decisions across the mobile organization
- Lead complex, multi-quarter features and systems from architecture and design through deployment and refinement
- Define and enforce engineering principles and best practices across Android and KMP surfaces
- Drive architectural decisions for shared business logic, Compose Multiplatform UI, and cross-platform state management
- Partner with platform teams on contracts, shared standards, and a unified UI component library
- Make high-impact technical decisions with product, design, and executive stakeholders
- Champion software quality, testability, operational metrics, and build system health
- Mentor and grow engineers at all levels
- Lead incident resolution through the on-call rotation and remove cross-team blockers
- Conduct rigorous code reviews and elevate engineering standards
Requirements:
- 10+ years of experience building highly scalable, consumer-facing Android applications
- Strong track record of senior staff-level technical leadership and cross-platform ownership
- Expert-level Kotlin, including coroutines, flows, language idioms, and best practices
- Deep hands-on KMP experience in large, multi-module codebases
- Strong command of MVI and reactive architecture patterns
- Gradle and build system expertise, including multi-module projects, convention plugins, dependency management, and build performance
- Experience with CI/CD pipelines, SDK versioning strategies, and automated release management
- Hands-on Compose and Compose Multiplatform experience
- Deep knowledge of Android platform best practices and design system standards
- Ability to communicate complex technical decisions to technical and non-technical stakeholders
- Experience driving Agile/SCRUM process improvements and delivery excellence
- Team-first mentality
- Strongly desired: Compose Multiplatform across Android, iOS, desktop, and additional targets
- Strongly desired: KSP-based code generation, Koin or similar dependency injection patterns
- Strongly desired: Feature flag systems, mobile observability tooling, and platform integration patterns
- Strongly desired: Distributed systems and event-driven architecture
Benefits:
- Base and bonus compensation
- Benefits information available at https://benefitsatfanatics.com/
- Potential in-person onboarding through Launching into Better: LIVE for full-time, non-seasonal hires
- Global sports platform employee benefits (details provided through the benefits site)
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