3D Web Platform Engineer

7 days ago

Singapore Superobservation Pte. Ltd Full time

Spatial Support is hiring a Realtime 3D Web Platform Engineer to make our browser-based 3D showroom feel instant and alive. You’ll work in SvelteKit + Threlte/Three.js, pushing WebGL—and piloting WebGPU—to deliver 60+ FPS visuals while streaming AI guidance in real time. You’ll ship features like explode views, instant highlights, and conversational UI, backed by websockets and an auth-first architecture. You obsess over profiling, asset pipelines, and code quality, and you’re fluent in TypeScript and modern frontend patterns. Strong WebGL experience required; WebGPU, game/CAD/AR work, and OSS contributions are a plus. Remote-first, APAC-friendly.

**About Spatial Support**:
We fuse AI with high-fidelity 3D so customers can explore complex products in the browser and chat with a scene-aware assistant that “sees” the model.

**Role Mission (First 90 Days)**:
**What you’ll do**:

- Build features in **SvelteKit/Threlte/Three.js**: 3D explore (pan/zoom/orbit/exploded views), annotations, part selection/highlights.
- Optimize rendering: progressive/lazy loading, GLTF/GLB pipelines (Draco/meshopt/KTX2), offscreen work (Web Workers/OffscreenCanvas), frame budget discipline.
- Integrate real-time streams: WebSockets/SSE to sync LLM tokens + scene highlights; keep UI state consistent and snappy.
- Front-end security: auth/session handling, token hygiene, CSP/CORS, guard model access and signed asset URLs.
- UX collaboration: design intuitive 3D controls and a chat surface that reinforces visual context; usability testing/telemetry.
- Quality & observability: refactors where needed, documentation for 3D math/shaders, tests for critical logic, runtime error/perf tracking.

**Required experience**:

- 3+ years building rich web apps in **TypeScript**; Svelte/SvelteKit ideal (React/Vue + willingness to learn Svelte okay).
- Strong **WebGL/Three.js** experience; solid with transforms, materials, lighting, and debugging graphics issues.
- Proven **performance optimization** on the web (profilers, frame timing, asset pipelines).
- Real-time UI: WebSockets/SSE or similar; confident with async state updates.
- Front-end security basics: API key safety, XSS avoidance, CSP, CORS, session flows in SSR/SPA contexts.
- Clear communication in remote, async teams.

**Preferred**:

- ** WebGPU/WGSL** experimentation or porting experience.
- 3D-heavy apps (games, CAD/BIM viewers, AR/VR).
- OSS contributions (Svelte/Threlte/Three.js) or reusable components.
- UX instincts and Figma comfort.
- Streaming protocols or multi-user collab (WebRTC/OT/CRDTs).
- Light backend/SSR routing skills in SvelteKit.

**Signals of excellence**:

- ** Live demos** that wow (share them).
- Concrete performance wins (e.g., shader refactor big FPS gains).
- T-shaped: deep in 3D + broad web fundamentals.
- Great docs/blogs/talks teaching others.
- Obvious excitement for AI × 3D.

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