3D Web Platform Engineer

Superobservation Pte. Ltd; Singapore; Remote; SGD 70,000 - 100,000; Full time

Job summary

A leading tech company in Singapore is seeking a Realtime 3D Web Platform Engineer to enhance their 3D showroom experience. The role involves using SvelteKit and Threlte/Three.js to create an interactive UI that integrates AI capabilities. You’ll need strong TypeScript and WebGL experience, with proven skills in performance optimization and a collaborative spirit. This remote-first position is ideal for someone who is passionate about pioneering technologies in AI and 3D interactivity.

Qualifications

• 3+ years building rich web apps in TypeScript; Svelte/SvelteKit ideal.
• Strong WebGL/Three.js experience with solid debugging skills.
• Proven performance optimization skills on the web.
• Experience with real-time UI synchronization methods.
• Basic knowledge of front-end security principles.
• Ability to communicate clearly in remote teams.

Responsibilities

• Build features in SvelteKit/Threlte/Three.js for 3D interactions.
• Optimize rendering processes with progressive loading and asset pipelines.
• Integrate real-time data streams to sync UI state.
• Ensure front-end security by managing tokens and session flows.
• Collaborate on user experience design for 3D interfaces.
• Maintain quality and observability through documentation and testing.

Skills

TypeScript

WebGL

Three.js

SvelteKit

Real-time UI

Front-end security basics

Performance optimization

Clear communication

Tools

Svelte

WebSockets

GLTF/GLB pipelines

Job description

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)

Own the interactive 3D web experience in SvelteKit + Threlte. Ship a streaming‑first, immersive UI that blends our 3D viewer with an AI chat surface so they feel like one product. Hunt down performance bottlenecks (target 60+ FPS where possible), prototype with WebGPU alongside WebGL, and apply an auth‑first approach across rich client features.

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.