Engineer III - Multiplatform Engineer IOS

Overview

At Fanatics Betting & Gaming (FBG), a core division of Fanatics' mission to establish the ultimate end-to-end digital sports platform, we're crafting a world where every aspect of a sports fan's passion is catered to.

On the engineering side, we're pioneering the use of AI as a code collaborator. We need engineers who have gone beyond experimentation—who actively use Claude Code, Cursor, GitHub Copilot, or similar tools to ship production code faster while maintaining exceptional quality standards. If you have strong opinions about AI-augmented development workflows backed by real experience, we want to talk with you.

This Engineer III - Multiplatform (iOS) role entrusts you with significant ownership over the development and optimization of both the Kotlin Multiplatform iOS interop & also building your multiplatform skillset within Kotlin Multiplatform. You'll lead by example, establishing best practices for AI-assisted development while building systems that handle millions of events daily.

Responsibilities

• Continuously build & maintain the iOS packages that support Kotlin Multiplatform & Compose Multiplatform alongside colleagues within a shared library framework
• Ensure our iOS performance when building Compose Multiplatform maintains the write SLA’s.
• Remove bottlenecks and make technical and design approach trade-off decisions short term vs long-term
• Contribute to team planning and design discussions, building more expertise around design approaches, driving best practices and improving the speed of delivery
• Leverage AI tools to accelerate development velocity while maintaining code quality standards
• Establish and document team standards for AI tool usage (prompt patterns, code review checklists, validation strategies)
• Measure and report on AI tool ROI through concrete metrics (PR velocity, bug rates, test coverage)
• Identify and prevent common AI-generated code pitfalls (over-abstraction, missing edge cases, security vulnerabilities)

Qualifications

• 5+ years of iOS development experience
• Demonstrated proficiency coding in Swift & SwiftUI
• The bulk of our business logic & ux relies on Kotlin Multiplatform (KM) & Compose Multiplatform (CMP). You should be comfortable learning and developing within this architecture while continuing to grow own our iOS interoperability with KM & CMP
• Extensive knowledge of building out versioned Swift Packages to help build out our packages that interop with CMP & KM
• Experience with CI/CD pipelines, and automated release processes.
• Demonstrated experience using AI tools (Claude Code, Cursor, Copilot, etc.) to ship production code
• Has developed personal strategies for validating AI-generated code and identifying common pitfalls
• Can compare at least 2-3 AI tools with concrete pros/cons from actual usage
• Track record of introducing tools or processes that measurably improved team velocity
• Can write clear technical documentation and present architecture decisions to non-technical stakeholders
• Team-first mentality with willingness to jump in wherever needed
• Actively experiments with and optimizes personal development workflow
• Strong written and verbal communication skills
• Self-directed problem solver who thrives in ambiguous situations

Preferred Qualifications

• Experience in sports betting industry or genuine interest in sports
• Previous experience in high-growth startup environments
• Exposure to Swift & iOS development frameworks
• Experience with Kotlin Multiplatform (KM)
• Contributions to open-source projects or technical community
• Background in building developer tools or improving engineering productivity
• Experience leading without authority and influencing technical direction across teams

Note on AI Workflow: We're serious about AI-augmented development. During interviews, be prepared to:

• Demo your current AI-assisted workflow
• Discuss specific examples of how you've used AI to solve complex problems
• Share your strategies for ensuring AI-generated code meets production standards

Ready to build the future of sports betting? If you possess some of these skills but not all of them, we still encourage you to apply!

The expected salary range for this role is based 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; actual salary will vary based on location. *Salary Range: $120,000 - $215,000 per year (actual salary will be determined in part by a successful candidate’s geographic location). In addition to base salary, 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. We’ll also give you $700 to set up your home office!