Staff Mobile Engineer - Kotlin, iCasino - FBG

About Us

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 Sportsbook 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.

About the Team

Launched in 2021, Fanatics Betting and Gaming is the online and retail sports betting subsidiary of Fanatics, a global digital sports platform. The Fanatics Sportsbook is available to 95% of the addressable online sports bettor market in the U.S. Fanatics Casino is currently available online in Michigan, New Jersey, Pennsylvania and West Virginia. Fanatics Betting and Gaming operates twenty-two retail sports betting locations, including the only sportsbook inside an NFL stadium at Northwest Stadium. Fanatics Betting and Gaming is headquartered in New York with offices in Denver, Leeds and Dublin. Staff Software Engineer – Mobile (Kotlin / Multiplatform)

Overview As a

Staff Software Engineer – Mobile

at Fanatics Betting & Gaming (FBG), you are a highly experienced individual contributor and technical leader with deep expertise in

Kotlin-based mobile development

and a strong track record of shaping mobile architecture at scale. You bring expert-level experience with

Kotlin and Jetpack Compose , along with proven ownership or strong experience driving

Kotlin Multiplatform Mobile (KMM)

and

Compose Multiplatform

strategies. You operate as a

technical authority and force multiplier , setting direction across teams, influencing architectural decisions, and elevating engineering standards. You thrive in a fast-paced, product-driven environment where your combination of

hands-on delivery, strategic thinking, and cross-functional leadership

has a measurable impact on both engineering outcomes and customer experience. You’ll join the

Fanatics Casino team , which owns the full iCasino experience across Fanatics platforms—including our standalone Casino App, iCasino within the Fanatics Sportsbook & Casino App, and our Casino Desktop website. Our mission is to build the top online casino in the U.S., with an emphasis on fun, dynamic, and entertainment-first products that resonate with our most valuable customer segment:

Spinners . Our mobile stack is built for speed and scale, powered by modern technologies like

Kotlin, Jetpack Compose, Compose Multiplatform, SwiftUI, and KMM . As a Staff Engineer, you will play a key role in evolving this ecosystem—driving

cross-platform strategy, platform consistency, and engineering excellence

across teams.

Responsibilities

Define and evolve the

mobile architecture and cross-platform strategy , with a focus on scaling

KMM and Compose Multiplatform

across the organisation. Lead complex

technical design and architectural decisions , balancing speed, scalability, maintainability, and user experience. Build and contribute to

shared mobile platforms, libraries, and reusable components , enabling consistency and velocity across teams. Deliver

high-impact features and platform improvements

hands-on, particularly in Kotlin and Jetpack Compose. Drive adoption of

best practices in mobile engineering , including modularisation, state management, testing, and performance optimisation. Partner closely with product managers, designers, and backend engineers to deliver

intuitive, high-performance user experiences . Identify and execute on opportunities to

reduce technical debt , improve system design, and enable faster iteration across teams. Own and improve

developer experience , including tooling, CI/CD pipelines, and release processes. Define and influence

mobile observability, performance monitoring, and reliability standards . Play a key role in

incident response and on-call practices , helping improve production stability and response effectiveness. Mentor and guide engineers across teams, contributing to a strong culture of

technical excellence and continuous learning . Influence engineering direction across squads, aligning teams to a

cohesive mobile platform vision . Contribute to hiring, onboarding, and raising the technical bar across the organisation. Develop a deep understanding of the iCasino product, customer segments, and how we deliver

entertainment-first experiences at scale . Be open to occasional travel to Fanatics offices and events for planning, collaboration, and team-building activities. Required Qualifications 8+ years of professional software engineering experience, with deep expertise in

mobile development

and strong Kotlin proficiency. Extensive hands-on experience building production mobile applications using

Jetpack Compose . Proven experience with or ownership of

Kotlin Multiplatform Mobile (KMM)

and/or

Compose Multiplatform

in real-world environments. Strong understanding of

mobi