Senior Staff Engineer - Mobile, Fanatics Markets

fanaticsfbg; United States; Remote; USD 204,000 - 269,000; Full time

Benefits offered by this job

Bonus eligibility

Job summary

fanaticsfbg is seeking a Senior Staff Mobile Engineer to drive Kotlin Multiplatform across Android and shared code, shaping architecture and long-term direction for the mobile practice.

You will own the multiplatform strategy, mentor engineers, and collaborate with platform teams to standardize contracts and a unified UI library. Remote-eligible, full-time role with strong compensation and bonus eligibility.

Qualifications

• 10+ years building scalable Android apps.
• Expert Kotlin, coroutines, flows and patterns.
• Lead cross-platform architecture and mentoring.

Responsibilities

• Own multiplatform strategy across Android and KMP.
• Lead end-to-end delivery of multi-quarter features.
• Define engineering principles and best practices.
• Drive architectural decisions for multi-module KMP.

Skills

Kotlin

Android

Kotlin Multiplatform

Coroutines & Flows

MVI architecture

Gradle

CI/CD pipelines

Compose Multiplatform

Cross-platform ownership

Tools

KSP-based codegen

Koin DI

Compose Multiplatform

CI/CD tooling

Job description

Role overview

A real-money prediction and trading platform that lets users invest in real-world outcomes across sports, entertainment, and other events is hiring a senior staff mobile engineer. The role blends strategic technical leadership with hands-on contribution across Android, iOS, and additional targets, all powered by a shared Kotlin Multiplatform codebase. The position carries organization-wide influence over mobile architecture, engineering standards, and the long-term direction of the mobile practice.

Responsibilities

• 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 delivery of complex, multi-quarter features and systems, from architecture and design through deployment and continuous refinement across multiple platform targets
• Define and enforce engineering principles and best practices across Android and KMP surfaces, raising the standard for the entire mobile organization
• Drive architectural decisions for a layered, multi-module KMP codebase, establishing patterns for shared business logic, Compose Multiplatform UI, and cross-platform state management that scale across teams
• Partner with shared platform teams to shape contracts, shared standards, and a unified UI component library that works consistently across platforms and product lines
• Mentor engineers at all levels, lead incident resolution as part of the on-call rotation, and model rigorous code reviews that elevate quality across the codebase

Requirements

• 10+ years of experience building highly scalable, consumer-facing Android applications, with a track record of senior staff-level technical leadership and cross-platform ownership
• Expert-level Kotlin, including deep mastery of coroutines, flows, idiomatic patterns, and best practices
• Hands-on experience developing and scaling shared business logic within a large, multi-module KMP codebase, with the ability to lead others and define the path forward
• Strong command of MVI and reactive architecture patterns applied consistently at scale across Android and shared KMP layers
• Gradle and build system expertise covering multi-module projects, convention plugins, dependency management, and build performance in large codebases
• Experience with CI/CD pipelines, SDK versioning strategies, automated release management, and Compose/Compose Multiplatform, paired with clear communication of complex technical decisions to engineers, executives, and non-technical stakeholders

Nice to have

• Compose Multiplatform experience spanning Android, iOS, desktop, and additional targets
• Familiarity with KSP-based code generation, Koin, or similar dependency injection patterns in a KMP environment
• Exposure to feature flag systems, mobile observability tooling, and distributed or event-driven architectures

Benefits and work setup

• Remote-eligible position with some in-person interview and onboarding components depending on role and location
• Full-time base salary range of $204,250 to $268,750 USD, plus bonus eligibility