Staff Software Engineer- Mobile

Location: United States

Overview

As a Staff Software Engineer - Mobile at Fanatics Betting & Gaming (FBG), you'll be joining our dynamic mobile engineering teams, contributing to the rapidly growing Fanatics sportsbook app ecosystem. You'll work across various product areas, developing features that enhance customer experience and drive business growth.

As a Staff Software Engineer at FBG, you are a fundamental problem solver and growing contributor, known for your ability to think critically and adapt to new technologies. You combine strong programming fundamentals with a willingness to learn our technology stack, delivering results across mobile platforms. You play an important role in implementing features and solutions while continuously developing your technical expertise and engineering skills.

We embrace principles of data-driven development, operational excellence, and continuous process optimization to deliver a stable, scalable platform. Central to our strategy is Kotlin Multiplatform, which empowers us to deliver high-quality features quickly and consistently across multiple ecosystems. By focusing on object-oriented design, modern coding practices, open-source frameworks, and third-party platform integrations, we continuously innovate and deliver at speed in this exciting and fast-moving market.

Responsibilities

• Lead the team in delivering high-impact features and maintaining platform quality, guiding engineers through technical and execution decisions.
• Collaborate across engineering, product, design, and backend organizations to align goals, unblock dependencies, and ensure successful delivery.
• Drive the design, development, testing, and deployment of scalable Kotlin Multiplatform code supporting Android, iOS, and web experiences.
• Balance short-term delivery needs with long-term architectural vision, ensuring maintainable, performant, and reusable shared code.
• Foster team alignment, communication, and clarity—helping the team move quickly while maintaining technical excellence.
• Lead feature delivery end-to-end, from ideation through launch and iteration, ensuring quality and velocity across platforms.
• Set and uphold engineering standards, development principles, and best practices for Kotlin Multiplatform and native development.
• Champion collaboration and relationship-building within the team and across partner orgs, acting as a trusted technical liaison.
• Participate in sprint planning, architecture discussions, and design reviews, contributing technical insight and organizational leadership.
• Drive operational excellence—monitoring reliability, test coverage, and observability, and ensuring issues are resolved with ownership and urgency.
• Mentor engineers across multiple levels and platforms, modeling proactive communication, problem-solving, and accountability.
• Be open to occasional travel to Fanatics offices or events for planning, collaboration, and team-building activities.

Required Qualifications

• 7 plus years of experience building and maintaining production mobile applications.
• Deep expertise in Kotlin and Kotlin Multiplatform (KMP), with proven success designing and shipping shared business logic.
• Strong background in Android development (Jetpack Compose, architecture patterns such as MVI, dependency injection).
• Solid understanding of iOS development and experience collaborating with Swift engineers.
• Demonstrated ability to lead cross-functional efforts and drive execution across teams without direct authority.
• Excellent communication and collaboration skills—able to translate technical strategy into clear, actionable team direction.
• Proven success in Agile/SCRUM environments, balancing delivery speed with quality.
• A hands-on builder with a team-first mindset and a passion for coaching and elevating others.
• A Bachelor’s degree, or professional certification, or a combination of education and experience

Preferred Qualifications

• Experience designing shared client APIs and integrating with backend services.
• Familiarity with Material Design principles, ideally Material 3.
• Exposure to Swift, Java, or React in production or collaborative settings.
• Passion for developer experience, performance optimization, and platform tooling.
• Strong focus on code reuse, testability, and maintainability in multiplatform environments.

Not sure if you check every box?

If you’re excited about this role, Kotlin Multiplatform, and building best-in-class mobile experiences, we encourage you to apply—even if you don’t meet every single qualification. We value passion, curiosity, and a growth mindset, and we believe great engineers come from diverse backgrounds and paths.

The base salary range for this role is 180,000 - 230,000 per year, depending on job-related knowledge, skills, and experience. This role is eligible for the Fanatics Betting and Gaming annual bonus program and an equity award. *Salary range is listed in USD; ranges will change based on country of residence. In addition to the base, bonus, and equity, full-time employees are eligible for Medical, Dental, Vision, 401K, paid time off, and other benefits like GymPass, Pet Insurance, Family Care Benefits, and more. 

For information about our benefits, please visit https://benefitsatfanatics.com/.

Depending on the role, your interview and onboarding experience may include in-person components, such as onsite interviews or Launching into Better: LIVE—a multi-day cultural immersion in New York City for full-time, non-seasonal hires. These sessions are designed to build connection and bring our culture to life, though specific travel and participation requirements will be confirmed based on your role and location. Your recruiter will provide clear guidance at each stage of the process.

About Us

About the Organization

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.