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# Frontend Engineer (React)

- **Company:** Splitmetrics Agency
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Performance Tuning, TypeScript, WebSocket, WebGL, Tailwind, ReactJS, Large Language Models, Backend, Front End Software Development
- **Published:** July 17, 2026
- **Apply:** https://www.jobleads.com/es/job/e257d749f92384498bc686a8ca3cbfa3f

## About the Role

* 5+ years of frontend experience, preferably on visually complex interactive applications
 * Experience with Dashboard features
 * Expert React + TypeScript + Tailwind
 * Experience with Tanstack Libraries
 * State management at scale (Zustand, Tanstack Query)
 * Experience implementing drag-and-drop interfaces, undo/redo, and real-time preview

Nice-to-Have:

 * Canvas/WebGL libraries (Reactflow)
 * LLM-powered UX or generative AI products
 * Performance optimization for image-heavy UI
 * Experience with Zod
 * Marketing technology background (ad platforms)

## Description

* Ship features related to Canvas-based pipelines for Generative AI
 * Integrate with async pipelines (WebSockets)
 * Ensure performance with large media datasets
 * Shape UX decisions, not just implement specs
 * Define data contracts with Backend


## Related Videos

- [Rendering Design Software in the Browser at Penpot](https://www.wearedevelopers.com/videos/1353-rendering-design-software-in-the-browser-at-penpot)
- [Microfrontends at Scale](https://www.wearedevelopers.com/videos/236-microfrontends-at-scale)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [Frontend Performance Testing in practice](https://www.wearedevelopers.com/videos/8-frontend-performance-testing-in-practice)

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