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Salary: USD 204,250 - 268,750 / annual
Fanatics Markets is a real-money prediction and trading app where users invest in moments they care about—from sports and entertainment to political elections. As a Senior Staff Mobile Engineer, you will be a defining technical voice on a multi-platform app built on Kotlin Multiplatform (KMP), shipping across Android, iOS, and additional targets from a shared codebase.
You will combine strategic thinking with hands-on execution, leading architecture decisions, setting engineering standards, and guiding engineers across the organization. Your impact extends well beyond your immediate team, shaping how the company builds across platforms at scale and influencing the long-term direction of mobile engineering practice.
Key responsibilities include:
- Own the multiplatform engineering strategy across Android and shared KMP layers, setting technical direction and influencing architecture decisions across the broader mobile organization
- Lead end-to-end execution of complex, multi-quarter features and systems from architecture through deployment across multiple platform targets
- Define and enforce engineering principles and best practices across Android and KMP surfaces, raising standards for the entire mobile organization
- Drive architectural decisions across a layered, multi-module KMP codebase, establishing patterns for shared business logic, Compose Multiplatform UI, and cross-platform state management
- Partner with shared platform teams to shape contracts, standards, and a unified UI component library that works consistently across platforms and product lines
- Drive high-impact technical decisions in partnership with product, design, and executive stakeholders, balancing immediate business goals with long-term scalability
- Champion software quality, testability, operational metrics, and build system health across the organization
- Mentor and grow engineers at all levels, providing technical coaching that compounds across teams
- Lead incident resolution as part of the on-call rotation and proactively remove cross-team blockers
- Model rigorous code reviews that elevate standards across the codebase
The engineering strategy centers on KMP and Compose Multiplatform to deliver high-quality, consistent experiences across platforms. At this level, you will help define and evolve that strategy.
REQUIREMENTS:
- 10+ years of experience building highly scalable, consumer-facing Android applications with a strong track record of senior staff-level technical leadership and cross-platform ownership
- Expert-level Kotlin with deep mastery of coroutines, flows, language idioms, and best practices; proven ability to drive standards and mentor engineers at all levels
- Deep KMP fluency with hands-on experience developing and scaling shared business logic in a large, multi-module KMP codebase
- Strong command of MVI and reactive architecture patterns across Android and shared KMP layers, with experience applying them at scale
- Gradle and build system expertise including multi-module projects, convention plugins, dependency management, and build performance in large codebases
- Experience with CI/CD pipelines, SDK versioning strategies, and automated release management across mobile platforms and libraries
- Hands-on experience with Compose and Compose Multiplatform, with deep knowledge of Android platform best practices and design system standards
- Proven ability to communicate complex technical decisions clearly to engineers, executives, and non-technical stakeholders
- Strong track record of driving Agile/SCRUM process improvements and delivery excellence across teams in fast-moving, large-scale environments
- Team-first mentality with drive to raise the bar continuously
Desired qualifications:
- Compose Multiplatform experience across Android, iOS, desktop, and additional targets
- Experience with KSP-based codegen, Koin, or similar DI patterns in a KMP environment
- Familiarity with feature flag systems, mobile observability tooling, and platform integration patterns
- Familiarity with distributed systems and event-driven architecture
