Staff Client Multiplatform Engineer

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: engineers passionate about min/maxing their workflows who actively experiment with 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.

As a Staff Client Multiplatform Engineer, you'll be a technical leader shaping the architecture of our entire betting platform. You'll define technical strategy across multiple teams while maintaining hands-on technical excellence. This role requires someone who can balance deep technical expertise with strategic thinking and cross-functional influence. You'll lead by example, establishing best practices for AI-assisted development while building systems that handle millions of events daily.

Responsibilities

• Contribute to the development, testing, documentation, and deployment of high-quality, scalable software into production
• Develop a comprehensive understanding of the industry, product, and roadmap, leveraging this knowledge to contribute to team strategy and provide input on the direction of the organization
• Execute the end-to-end technical implementation of complex features and systems, from ideation and architecture to deployment and refinement across backend & frontend.
• Partner closely with our client platform team who helps define & grow our client standards, best practices and shared ui experience library platform across the organization.
• Partner closely with product, design, and other stakeholders to make impactful technical decisions that align with both business goals and long-term scalability
• Participate in incident resolution as part of the on-call rotation, ensuring swift diagnosis and remediation of critical software issues
• Proactively identify and remove roadblocks, supporting cross-team collaboration to maintain momentum on complex projects
• Conduct thorough code reviews, sharing expertise to enhance code quality
• Actively participate in team planning and design discussions, contributing innovative approaches to solve technical challenges and optimize design patterns
• Drive improvements to software quality, testability, operational metrics, and team documentation, raising the standard within the team
• Mentor junior engineers, fostering a culture of continuous learning and professional growth on the team
• Leverage AI tools to accelerate development velocity while maintaining code quality standards
• Follow and contribute to team standards for AI tool usage (prompt patterns, code review checklists, validation strategies)
• Track and share insights on AI tool effectiveness 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

• 6-7 years building highly scalable Android apps and professional experience with backend microservices and distributed systems in Kotlin
• Strong knowledge of Kotlin language features especially coroutines, flows, idioms, and best practices with the ability to contribute to best practices and mentor peers in its effective use
• Some exposure to building full-stack applications
• Solid understanding of reactive programming patterns and asynchronous data processing
• Proficiency in Gradle build systems, including multi-module projects, custom plugins, and dependency management
• Familiarity with CI/CD pipelines, SDK versioning strategies, and automated release management for mobile applications and libraries
• The bulk of our frontend business logic strategy relies on Kotlin Multiplatform (KM). You should be comfortable learning and developing business logic within this ecosystem.
• Experience with Jetpack Compose
• Android domain expertise, knowing the platform best practices, trends, and end user considerations
• Team-first mentality, with a willingness to do what it takes to get the job done and a desire to strive for better
• Demonstrated experience using AI tools (Claude Code, Cursor, Copilot, etc.) to ship production code
• Can demonstrate specific examples of workflow improvements (e.g., "reduced boilerplate generation time by 40%")
• Has developed personal strategies for validating AI-generated code and identifying common pitfalls
• Effectively communicates complex technical concepts clearly to diverse audiences, including engineers and stakeholders
• Solid understanding of Agile software delivery and SCRUM methodology, with a track record of contributing to process improvements within teams
• Thrives in a high-growth environment where priorities evolve regularly and decisions are made quickly
• Strong ability to collaborate cross-functionally across diverse teams within large enterprise environments, supporting alignment and shared success

Preferred Qualifications

• Experience with Kotlin Multiplatform(KM)
• Compose Multiplatform Experience
• Experience designing and building backend services using Spring Boot or similar Java frameworks
• Experience working in large-scale distributed systems and event-driven architectures
• Exposure to Swift & iOS development frameworks

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: $144,000 - $282,000 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. Remote employee may also be eligible for a home office setup stipend.