Senior Staff Engineer - Mobile, Fanatics Markets

New York, NY, United States

Fanatics is building a leading global digital sports platform. We ignite the passions of global sports fans and maximize the presence and reach for our hundreds of sports partners globally by offering products and services across Fanatics Commerce, Fanatics Collectibles, and Fanatics Betting & Gaming, allowing sports fans to Buy, Collect, and Bet. Through the Fanatics platform, sports fans can buy licensed fan gear, jerseys, lifestyle and streetwear products, headwear, and hardgoods;

collect physical and digital trading cards, sports memorabilia, and other digital assets; and bet as the company builds its Sports book and iGaming platform. Fanatics has an established database of over 100 million global sports fans; a global partner network with approximately 900 sports properties, including major national and international professional sports leagues, players associations, teams, colleges, college conferences and retail partners, 2,500 athletes and celebrities, and 200 exclusive athletes;

and over 2,000 retail locations, including its Lids retail stores. Our more than 22,000 employees are committed to relentlessly enhancing the fan experience and delighting sports fans globally.

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 Sr. Staff Mobile Engineer, you'll be a defining technical voice on a multi-platform app built on Kotlin Multiplatform, shipping across Android, iOS, and additional targets from a shared codebase. You'll combine strategic thinking with hands‑on execution — leading architecture decisions, setting engineering standards, and guiding engineers across the organization. Your impact will extend well beyond your immediate team, shaping how we build across platforms at scale and influencing the long‑term direction of our mobile engineering practice.

Our engineering strategy centers on KMP and Compose Multiplatform to deliver high-quality, consistent experiences across platforms. At this level, you won't just work within that strategy — you'll help define and evolve it.

• Own the multiplatform engineering strategy across Android and shared KMP layers — setting technical direction for the team and influencing architecture decisions across the broader mobile organization
• Lead end-to-end execution 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 across 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
• Drive high‑impact technical decisions in close 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, holding…