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# Senior Interactive Engineer

- **Company:** Fanatics Inc
- **Location:** Los Angeles, CA, United States
- **Experience:** Expert
- **Salary:** $144,640.0 - $180,800.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Software Debugging, OpenGL Shading Language, Performance Tuning, TypeScript, WebGL, Three.js, Production Code, Front End Software Development
- **Published:** May 15, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=4d4019f5b04bd396

## About the Role

Do you have experience in Unity?, * ~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

## Description

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


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