Senior Front End Developer – Web And Mobile

At Purplebricks, we’re not your average estate agency. We’re flipping the script on the property game using smart tech, fresh ideas, and a serious focus on people to make buying and selling homes smoother, faster, and actually enjoyable.

We’re all about keeping things real. Real support. Real flexibility. Real opportunities. We know success doesn’t come from standing still and neither do we. If you're hungry to grow, driven to succeed, and ready to be rewarded for it, this could be the start of something big. We’re big fans of promoting from within, so your first role here might just be the first step in a much bigger journey.

You'll be a senior hands-on engineer on our two core front-end platforms: a multi-app web monorepo built on Next.js and a cross-platform mobile client built on React Native. The role spans hands-on delivery, contributing to architecture and patterns alongside the lead, and the tooling and AI workflows the team relies on day to day. You'll deliver complex features end-to-end and help raise the quality, performance, and release process across both stacks.

This is an individual contributor role with broad scope. You'll work across product, design, content, and platform teams, and you'll be expected to contribute through strong code, thoughtful code review, written design, and pragmatic technical judgement.

When it comes to culture - we really try to build cohesive, high performing teams that pull together. Each squad feels a real sense of ownership over their work. Building an environment based on trust and honesty is really important to us.

As a Senior UI Engineer, your time will be split between hands-on delivery across web and mobile, contributing to our front-end architecture, and supporting the engineers who specialise in one stack or the other. You'll review code across both repos, contribute to the design system that serves marketing and product surfaces, and weigh in on the decisions that shape day-to-day work: app vs. shared lib, server vs. client, fetch vs. cache, OTA vs. binary release. As we work in multidisciplinary squads, you'll also support QA, Product, and Platform colleagues to make sure we hit our sprint goals.

Your new development will be done across a multi-app Nx monorepo (Next.js App Router, TypeScript strict mode, TanStack Query, Tailwind, Radix, headless CMS) and a cross-platform React Native client on the Expo/EAS toolchain. You'll work on module boundaries, shared libraries, and the dependency graph; wire up new third-party integrations end-to-end (SDK, secrets, config, typed wrapper, rollout); and contribute to CI/CD across both repos including affected-based pipelines, multi-app deploys, and mobile release channels.

Outside of squad work you will be part of the UI Chapter. We hold Chapter meetings to talk about tech and ways of working. We work democratically to evolve our stack and make constant improvements.

What Skills Are You Bringing To The Team?

• Recent production level experience with React and Next.js
• Strong TypeScript skills to write clean, maintainable code
• Data and state with TanStack Query and a lightweight client store such as Zustand
• Styling and component composition with Tailwind

Required App Development Skills/Experience

• Production experience shipping a React Native app on the Expo/EAS toolchain
• EAS Build, Submit, and Update; comfortable dropping into Xcode or Gradle when the managed workflow isn't enough
• File-based routing, a responsive theming system, animation and gesture libraries
• Local persistence and query caching patterns
• OIDC authentication with platform-specific session handling
• Push notifications via FCM/APNs

Desired Skills/Experience

• Experience with Nx (or a comparable monorepo tool: Turborepo, pnpm workspaces) and the code organisation patterns that come with it
• Experience with .NET C#
• Headless CMS experience — content modelling, codegen, block-driven rendering, draft/preview flows. Contentful is a plus
• CI/CD and hosting experience across GitHub Actions, Vercel, and Azure
• Observability across web and mobile: error tracking with source maps, analytics, crash reporting, session recording, feature flags
• Fluent with Claude Code in daily use (subagents, slash commands, hooks, MCP servers, permission modes), the Claude Agent SDK, and authoring MCP servers and custom agents that other engineers adopt
• Testing across the stack (unit, component, API mocking, RN test environment) plus component documentation and accessibility judgement beyond what static rules catch

Core Values

• An excellent communicator and relationship builder
• Confident in providing technical guidance and mentoring to mid-level and junior developers
• Enjoys bringing clarity to situations then helping others to take ownership
• Role-models curiosity, open-mindedness, honesty, and transparency
• Advocacy for great engineering practices around the Digital & Technology team
• Actively keeps up to date with modern tools, frameworks, and industry trends — and brings new thinking back to the team

What Will You Be Accountable For?

You will be part of a Product focussed Technical squad, where the squad is responsible for building, delivering and maintaining fantastic software. This means you will be involved in all stages of your lifecycle from the initial discovery, through planning, build, release and monitoring. You'll be part of all the usual Agile ceremonies and as a team, you will be delivering great new functionality every sprint.

Contributing to the design, delivery and ongoing health of our web and mobile platforms — from architectural input through to hands-on coding, code review, and production support. You'll help raise the quality, performance, accessibility, and release process of what ships across both stacks, support the front-end and mobile engineers around you, and contribute to the wider front-end architecture and standards through the UI Chapter. You'll take part in incident response (triage, hotfix or rollback, post-incident review) and help raise the team's leverage through AI tooling other engineers can rely on.

What Success Looks Like

• Web and mobile ship valuable, well-tested changes predictably every sprint
• Web and mobile experiences are reliable, performant, accessible, and observable in production
• Engineers around you are supported through code review and pairing on harder problems
• Technical decisions are well-reasoned, documented, and aligned with the wider architecture
• You're a trusted voice in the UI Chapter, shaping standards and ways of working
• Cross-discipline collaboration is smooth — QA, Backend, Product, Design, and Content feel well-supported by the UI team

How Will We Measure Success

• Sprint delivery predictability and throughput across the squad
• Production reliability — web uptime and Core Web Vitals, mobile crash-free sessions, incident frequency, and mean time to recovery
• Code quality signals — defect escape rate, test coverage on changed code, and review turnaround
• Deployment frequency and lead time across web releases and mobile binary/OTA updates
• Progression of the engineers you coach, evidenced through performance reviews and scope of work taken on
• Contribution to the UI Chapter and to AI tooling — standards, custom agents, MCP integrations, and shared improvements adopted by other squads