Software Engineer III - Client Multiplatform Engineer, Fanatics Markets

Fanatics Inc

New York (NY)

On-site

USD 121,600 - 200,000

Full time

14 days+

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Benefits offered by this job

Medical, Dental, Vision

401K

Paid time off

GymPass

Pet Insurance

Family Care Benefits

Job summary

A prominent sports technology company is seeking a Client Multiplatform Engineer in New York, New York. This role focuses on optimizing Kotlin Multiplatform UX and utilizing AI tools to enhance development efficiency. Candidates should have 3-5 years of Android app development experience and familiarity with reactive programming. The position offers a salary range of $121,600 to $200,000 annually, alongside benefits including medical, dental, and paid time off.

Qualifications

3-5 years of experience building scalable Android apps.
Familiarity with Kotlin language features, particularly coroutines and flows.
Proficiency in developing within Kotlin Multiplatform ecosystem.
Ability to demonstrate successful AI-assisted code delivery.

Responsibilities

Develop, test, and deploy high-quality software.
Lead implementation of complex features and systems.
Conduct code reviews to improve code quality.
Collaborate with teams to make impactful technical decisions.

Skills

Kotlin programming

Reactive programming patterns

Agile software delivery

Team collaboration

AI tools usage

Tools

Gradle

Jetpack Compose

CI/CD pipelines

Job description

United States

Job Description

About Fanatics Markets

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

At Fanatics Betting & Gaming (FBG), a core division of Fanatics' mission to establish the ultimate end-to-end digital 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.

This SE III Client Multiplatform Engineer role entrusts you with significant ownership over the development and optimization of both the Kotlin Multiplatform & Compose Multiplatform UX. 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 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
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

3-5 years building highly scalable Android apps
Knowledge of Kotlin language features especially coroutines, flows, idioms, and best practices with the ability to contribute to best practices.
Good understanding of reactive programming patterns and asynchronous data processing
Experienced 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
Some exposure to building across the full-stack, specifically API’s for client consumption.
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: $121,600 - $200,000 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.

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.

Job Info