Senior Interactive Engineer

Senior Interactive Engineer Fanatics Collectibles Los Angeles, CA Job Details $144,640 - $180,800 a year 1 hour ago Qualifications GLSL Performance tuning 5 years System design Scalable systems JavaScript Unity Scalability Front-end development Senior level Rendering Cross-functional collaboration TypeScript Cross-functional communication Full Job Description 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 Fanatics Collectibles is a new company operating at the intersection of collectibles, culture, and technology. Backed by world-class investors, operators, and sports & entertainment partners, we are building the global leader in next-generation collectibles. As part of the broader Fanatics ecosystem, we leverage a digital sports platform that spans over 900 sports properties and engages more than 81 million fans. Together, we are reimagining every part of the collectibles experience for fans, partners, and creators. Role Summary Fanatics Collect is building the next generation of interactive collecting — where real-time digital experiences meet physical products. As a Senior Interactive Engineer (TP4), you will be a core builder of our interactive platform, developing high-performance rendering systems that power experiences like Instant Rips and Instant Wax. This role is critical to bringing a previously outsourced capability in-house and establishing a strong technical foundation for future innovation. You'll operate with significant ownership, partnering closely with design and product to ship performant, scalable, and extensible systems. What You'll Do Build and evolve the core WebGL rendering layer (BabylonJS) for interactive collecting experiences Develop custom GLSL shaders to support real-time visual experiences Optimize GPU performance, rendering efficiency, and load times Contribute to the migration from vendor-built systems to an internal codebase Implement reusable technical patterns and components to support scalability Partner with Creative Technologists to ensure visual fidelity and performance alignment Collaborate with cross-functional teams to integrate experiences across the Collect platform Support rapid iteration on new interactive formats and features What You'll Bring ~5-8 years of experience in frontend engineering, graphics, or real-time rendering Strong experience with JavaScript/TypeScript and WebGL frameworks (BabylonJS, Three.js, or similar) Hands-on experience writing GLSL shaders Solid understanding of rendering pipelines and performance optimization Experience debugging and improving GPU performance Familiarity with Unity or cross-platform rendering environments is a plus Ability to independently own features while contributing to broader system design TP4 Expectations Own complex technical components end-to-end Contribute to system design and technical direction within the team Deliver high-quality, production-ready code with minimal oversight Act as a strong collaborator across engineering, design, and product Why This Role Matters This role helps establish a permanent, in-house interactive capability — unlocking faster iteration, deeper product innovation, and long-term platform ownership. Ensure your Fanatics job offer is legitimate and don't fall victim to fraud. Fanatics never seeks payment from job applicants. Feel free to ask your recruiter for a phone call or other type of communication for interview, and ensure your communication is coming from a Fanatics email address (including @collectfanatics.com). For added security, where possible, apply through our company website at www.fanaticsinc.com/careers By submitting your application, you agree to our terms of service and acknowledge you have read our Candidate Privacy Policy.