Senior Frontend Developer (3D)

Job Requisition ID #

26WD97294

Position Overview

As a Senior Frontend Developer (3D), you will work at the intersection of technical engineering and UX design. You are responsible for creating intuitive, high-performance user interfaces that bring 3D data and spatial environments to life on the web. You help shape and implement the interaction models that make complex 3D workflows feel seamless.

You will work closely with Engineering and UX Research teams to move from concepts and designs to functional 3D experiences. You will be a key contributor in ensuring our 3D frontend systems are effective, useful and deliver a delightful user experience.

Locations: UK or Toronto, Canada. Hybrid or Remote

Responsibilities

• Design & Implementation: Lead the end-to-end development of sophisticated 3D web interfaces, balancing aesthetic design with technical performance
• 3D Interaction Patterns: Define and build reusable UI components and interaction patterns specifically for 3D canvases (e.g., gizmos, camera controls, spatial annotations)
• Prototyping: Rapidly prototype new features and concepts using React and Three.js
• Architecture & Performance: Drive decisions on frontend state management and 3D scene graph organization to ensure smooth frame rates and responsive UI
• Collaboration: Partner with backend and graphics teams to shape APIs and data contracts for streaming large 3D datasets or real-time simulation data
• Technical Health: Maintain high standards for code quality, testing, and documentation within the frontend codebase

• Experience: Typically 5-8 years of professional software engineering experience, with a strong portfolio showcasing 3D web projects
• Technical Stack: Deep expertise in React and Three.js
• Web Fundamentals: Expert-level knowledge of JavaScript/TypeScript, HTML5, and CSS3 (including modern layout techniques and animations)
• AI Development Workflows: Experience with modern agentic development processes (Cursor, Claude Code, Windsurf)
• 3D Proficiency: Solid understanding of 3D math (vectors, quaternions, matrices), WebGL/WebGPU, and graphics pipelines (shaders)
• Optimization: Demonstrated ability to profile and optimize frontend performance, particularly regarding DOM/Canvas bottlenecks
• Communication: Strong ability to articulate design decisions and technical constraints to both technical and non-technical stakeholders

• Advanced Graphics: Experience writing custom shaders to achieve unique visual effects or performance optimizations beyond standard materials
• Specialized Frameworks: Familiarity with the React Three Fiber (R3F) ecosystem
• XR Experience: Proven track record building immersive experiences using WebXR for Augmented Reality (AR) or Virtual Reality (VR) in the browser
• Motion Design: Strong understanding of animation principles (easing, timing, physics-based motion) and experience using libraries like Framer Motion or GSAP
• Design Patterns: Familiarity with ECS (Entity Component System) and other scalable system design approaches
• Large-Scale Data: Experience handling large 3D datasets, including knowledge of octrees, LOD (Level of Detail) strategies, and efficient 3D file formats like glTF/GLB
• Math & Physics: Strong background in linear algebra and experience integrating physics engines (e.g., MuJoCo, Rapier, Ammo.js) for interactive 3D simulations
• Design Tools: Proven experience with design and prototyping tools (e.g., Figma, Adobe Creative Suite) and the ability to bridge the gap between static mocks and functional code
• Design Systems: Experience building or maintaining a design system that specifically accounts for 3D components and spatial UI consistency
• Testing for 3D: Experience with visual regression testing and unit testing for 3D scene logic (e.g., using Playwright or Cypress)