A UK-based provider of intelligent automation and agentic AI for accounting firms is seeking a Senior Front-End Developer for a greenfield build. The company builds tools that streamline tax and accounting workflows by automating data extraction, personal tax return preparation, and complex legislation research.

Location: Scotland (Glasgow/Edinburgh/Hybrid within UK)

Type: Full-time, Permanent

The successful candidate will own the entire web front end, including architecture, design system, accessibility, performance, testing, CI/CD, and developer experience. They will collaborate with Product, Design, and Back-End/ML teams to turn complex AI workflows into fast, intuitive interfaces.

The Opportunity

The candidate will be responsible for:

• Architecting the front end for new experiences (framework, structure, state, routing, theming).
• Building a reusable component library/design system (Storybook) with accessibility baked in (WCAG 2.2 AA).
• Shipping features end-to-end: collaborating on specs, defining API contracts (REST/GraphQL), implementing, testing, and iterating.
• Designing AI-native UX: chat/agent interfaces, task orchestration UIs, annotations, human-in-the-loop review, and safe “approve/apply” flows.
• Data-heavy UI: tables, diff/compare views, document viewers, complex filters, and clear visualization of legislation impacts.
• Performance & quality: Core Web Vitals budgets, code-splitting, bundle hygiene, and robust testing (unit/integration/E2E).
• Security & privacy: sensible auth flows, role-based permissions, safe handling of sensitive tax data, dependency hygiene.

Observability: instrumenting analytics, error tracking, feature flags, and A/B tests; creating product telemetry dashboards with Product.

Our Likely Stack

• Core: TypeScript, React (or Next.js), Vite/Webpack, Tailwind CSS (or CSS Modules), Storybook.
• Testing: Jest, React Testing Library, Playwright/Cypress.
• Data viz: Recharts / D3 (as needed).
• APIs: REST and/or GraphQL.
• Monitoring: Sentry; analytics (GA4/PostHog).

What You’ll Bring

• 4-7+ years building modern web apps with TypeScript + React (Next.js a plus), including leading greenfield builds.
• Hands-on experience creating design systems/component libraries and shipping accessible, responsive UIs.
• Strength in state management, performance tuning, and Core Web Vitals.
• Strong testing discipline and CI/CD ownership for front-end projects.
• Comfortable shaping API contracts and partnering with back-end/ML teams.
• Excellent product sense: turning complex tax/accounting/AI workflows into clear, low-friction UX.
• Nice to have: B2B SaaS, document-centric apps, regulated data, accounting/tax tooling (CCH/IRIS/Xero/Sage) or HMRC-adjacent flows.

How We Work

• Pragmatic Agile: small slices, frequent releases, tight feedback loops with customers.
• High ownership, low ego: debating ideas, deciding, shipping.
• Hybrid-friendly within Scotland/UK; periodic in-person collaboration days.

We are an equal opportunities employer and welcome applications from all qualified candidates.