Senior Design Engineer - Equity, Flexible Work & AI UI

AION; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Equity

Flexible work options

Wellness benefits

Job summary

aion is hiring a design engineer to build production-grade UI in React and TypeScript. You’ll ship components, surfaces, and internal tools, ensuring fast, accessible interfaces across devices.

You’ll work with 3D, shaders, and generative work where it elevates the user experience and contribute to a high-performance, accessible frontend culture. We seek 5+ years shipping production front ends, deep React/TypeScript expertise, and a passion for motion, physics-based interaction, and

Qualifications

• 5+ years shipping production front ends.
• Expert level React and TypeScript with robust component APIs.
• Motion values and direct DOM updates for high-frequency UI.
• CSS in depth: clip-path, masks, backdrop filters and more.
• Type and pixels in code with font/layout precision.
• Performance-focused and accessibility-conscious.

Responsibilities

• Take ideas from blank file to production, prototype in code and own it when shipped.
• Build production UI in React and TypeScript from primitives to surfaces.
• Create internal tools: design-system tooling and debug overlays.
• Tune motion and gestures to feel physical and responsive.
• Create 3D, shader and generative work when it enhances UX.
• Review builds on real devices and keep it fast and robust.

Skills

Frontend experience

React/TypeScript

Motion & DOM

CSS depth

WebGL/WebGPU

Three.js/RTF

Tools

Three.js

React Three Fiber

WebGL/WebGPU

OpenType features

Job description

aion is hiring a design engineer to build production-grade UI in React and TypeScript. You’ll ship components, surfaces, and internal tools, ensuring fast, accessible interfaces across devices.

You’ll work with 3D, shaders, and generative work where it elevates the user experience and contribute to a high-performance, accessible frontend culture. We seek 5+ years shipping production front ends, deep React/TypeScript expertise, and a passion for motion, physics-based interaction, and