Senior WebGL Game Engineer - React + PixiJS/Babylon

Highstack; Town of Babylon (NY); On-site; USD 120,000 - 210,000; Full time

Job summary

Highstack is building the world’s first Creator Casino, a web-based game engine stack for 2D/3D experiences. We are seeking a Senior Game Engineer with deep mastery of the web graphics stack to architect game clients (Slots, Crash) and frontend UI.

You will work across TypeScript, PixiJS, Babylon.js, React, and a Nx monorepo to deliver modular, themeable engines with multi-tenant configurations and 60 FPS performance on desktop and mobile.

Qualifications

• 5+ years of experience in Game Development or Senior Frontend Engineering with a heavy focus on interactive graphics.
• Expert-level knowledge of TS and React 18/19, including hooks, context, and performance optimization patterns.
• Strong proficiency with PixiJS and/or Babylon.js; understanding shaders, lighting, and scene graph optimization.
• Experience implementing Spine and Rive into web runtimes.

Responsibilities

• Engine Development: Build and optimize lightweight, high-performance game clients using TypeScript, PixiJS, and Babylon.js.
• Hybrid UI Systems: Develop sophisticated game HUDs and betting interfaces using React, ensuring seamless communication between the React state and the Game Canvas.
• Dynamic Animation: Integrate Spine for skeletal animation and Rive for interactive UI components and transitions.
• State & Logic: Implement robust game state machines and manage client-side state with Zustand or similar, handling real-time outcomes via GraphQL subscriptions.
• Asset Pipeline: Architect an efficient asset loading system (Vite-based) supporting dynamic skinning and multi-tenant configurations.
• Performance Engineering: Optimize draw calls and memory usage while minimizing React re-renders for 60 FPS on mobile and desktop.
• Cross-Functional Integration: Work within an Nx monorepo to package games as Micro-Frontends, integrating with Qwik host and shared components.
• Reliability & Trust: Ensure frame-perfect synchronization and robust reconnection handling.

Skills

TypeScript

React 18/19

PixiJS

Babylon.js

WebGL

Shaders

Game physics

Animation

Tools

Vite

PNPM

Nx

Job description

Highstack is building the world’s first Creator Casino, a web-based game engine stack for 2D/3D experiences. We are seeking a Senior Game Engineer with deep mastery of the web graphics stack to architect game clients (Slots, Crash) and frontend UI.

You will work across TypeScript, PixiJS, Babylon.js, React, and a Nx monorepo to deliver modular, themeable engines with multi-tenant configurations and 60 FPS performance on desktop and mobile.