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# Senior Frontend Developer

- **Company:** Ai
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Automation of Tests, Integrated Development Environments, Next.js, Network Routers, ReactJS, Caching, Backend, Front End Software Development
- **Published:** September 13, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/senior-frontend-developer/47107972

## About the Role

Backend-for-Frontend patternsGraphQL & REST APIsPlaywright and unit testingStorybook and shared design systemsTrunk-based development and continuous deliveryClaude Code / AI coding toolsExperience with Turborepo, CDN/caching strategies, ISR, stale-while-revalidate, micro-frontends or edge composition would also be useful.What we're looking forYou'll be a strong Senior Frontend Engineer who cares about engineering craft but doesn't need lots of process around you to produce great work.We're particularly interested in engineers who:Have deep commercial experience with React, Next.js and TypeScriptAre comfortable owning features beyond just the UITreat automated testing as part of development rather than something handed over to QAEnjoy shipping small changes frequently rather than working on long-lived branchesHave experience consuming and challenging design systemsWork well in small, collaborative engineering teamsEnjoy autonomy and taking responsibility for production softwareAre
comfortable having the quality and performance of what they ship measured against real-world usageMost importantly, you should already actively using AI coding tools as part of your development workflow.Ideally this will include Claude Code, although we're interested in engineers using similar agentic development approaches who can demonstrate how AI has genuinely changed the way they build software.A different kind of engineering environmentThis team is deliberately being kept small.You'll have the opportunity not only to build the platform but also to influence the engineering patterns, standards and AI tooling used by the wider team.The interview process reflects that approach. Rather than simply asking you to talk about AI development, there will be a practical session using Claude Code to solve a real engineering problem.If you're a strong React/Next.js engineer who has embraced agentic development and wants to work somewhere that's building its engineering model
around it, this should be a genuinely interesting project. #J-18808-Ljbffr

## Description

continuously delivered, with engineers responsible for the quality of what they ship.AI is genuinely part of the engineering workflowThis isn't a traditional development environment that has recently added an AI tool.The engineering model has been designed around agentic development from the outset.You'll use Claude Code as a core part of your daily development workflow, working from structured designs to generate components, Storybook stories and tests together.The important part isn't simply generating code.As a Senior Engineer, you'll be expected to understand how to prompt effectively, critically review AI-generated output, identify problems, improve the code and feed better standards back into the tooling.You'll remain the engineer making the decisions - AI simply allows you to work differently and move faster.What you'll be working withThe core stack includes:React & Next.js - including App Router and React Server ComponentsTypeScriptNext.js route handlers


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