About Customuse
Customuse is building an AI creative engine for image, video, and 3D. We bring leading AI models and pro creation tools into one workflow, helping creators and teams ideate, generate, edit, animate, texture, and produce publish-ready assets.
We are trusted by 15M+ creators and used across gaming, Roblox, animation, ecommerce, product design, architecture, and creative teams. The next chapter is turning Customuse into the default creative workspace for AI-native media production.
We are backed by Connect Ventures, Adjacent, and angels/operators from companies like Snap, Stripe, and SpaceX, with an investor network behind category-defining companies including Revolut and RevenueCat.
Location: London
Type: Full-time
About the role
We are looking for a Mobile Engineer to help build the next generation of Customuse on mobile.
This is not a standard mobile app role. You will build highly interactive creative tools that combine React Native, touch-first product design, real-time 2D/3D graphics, AI-powered workflows, and polished mobile experiences.
We are open to different experience levels: an ambitious early-career engineer with unusually strong mobile and graphics instincts, a mid-level engineer ready for more ownership, or a senior mobile engineer who has built complex creative or graphics-heavy apps before.
What you'll do
Build and ship high-quality mobile experiences in React Native for iOS and Android
Develop interactive creative tools involving 3D previews, canvas rendering, image editing, asset customization, and AI workflows
Work with React Native Skia, PixiJS, Three.js, React Three Fiber, WebGL, or similar graphics libraries
Optimize rendering, memory usage, gestures, animations, load times, and reliability across device types
Build intuitive touch-first interfaces for creating, editing, previewing, and publishing creative assets
Integrate APIs, asset pipelines, generation systems, and publishing flows into a smooth mobile experience
Collaborate with product, design, AI, and 3D engineering to bring advanced creative workflows to mobile
You might be a fit if
You have strong experience building mobile apps with React Native
You care deeply about product quality, performance, interaction design, and mobile polish
You have experience with graphics, canvas, creative tools, 3D, game development, or highly interactive UI
You understand mobile constraints: performance, memory, offline states, device differences, app store requirements, and native platform quirks
You can move quickly from prototype to polished product and are comfortable working across UI, state, APIs, and asset loading
You are excited by AI-powered design tools, gaming, UGC, creator platforms, and 3D content
Bonus points
Experience building creative tools, design apps, gaming apps, avatar tools, camera apps, or media-heavy mobile products
Experience with 3D asset formats and pipelines such as glTF, FBX, OBJ, textures, materials, or scene previews
Experience with native iOS or Android, Expo, Reanimated, Gesture Handler, native modules, or mobile graphics optimization
Experience with Unity, Unreal, Blender, Roblox, WebGL, WebGPU, or game-engine-style workflows
Experience integrating AI APIs, image generation, 3D generation, or creative automation tools into mobile products
What we offer
Competitive salary and stock options
Real ownership over the mobile future of a product used by millions of creators
Work at the intersection of mobile, AI, 3D, gaming, and creative tools
A small, ambitious team with direct feedback, high trust, and high standards
Central London office
Hiring process
Screening call
Technical interview focused on React Native, product engineering, and mobile performance
Practical working session or take-home exercise
Culture fit interview and meet the team
Reference check and offer
We value ambition and trajectory over years of experience. We move quickly and hold a high bar, but you will get real ownership, direct feedback, and the chance to do career-defining work with a small, ambitious team.
