Frontend Engineer
Role Description & Overview
As a Frontend Engineer, you will shape data-dense enterprise interfaces and AI-assisted workflows using React, React Native and TypeScript. You’ll contribute to a shared, themesable component library within a growing UK core engineering team. You’ll tackle performance, real-time updates, and trusted, transparent UI for complex workflows in a multi-tenant SaaS context. This role offers visible impact on product surfaces and the AI experience, within an ambitious, fast-paced environment.
Responsibilities- Build advanced forms, analytics dashboards, and real-time views in React/React Native with TypeScript
- Leverage grids (AG Grid, MUI DataGrid) and responsive layouts to scale data-heavy interfaces
- Implement streaming responses, citations, verification flows and safe failure states
- Support agent workflows with visible progress, hand-offs, and interruption/correction capabilities
- Optimize perceived performance for model calls and interactive UX
- Contribute to component library and tenant theming, ensuring branding and permissions are clean
- Integrate frontend with backend APIs including authentication and RBAC
- Maintain tests (unit, integration, E2E) with Jest, RTL and Cypress/Playwright
- Adhere to WCAG 2.1 standards and optimize code-splitting and lazy loading
- Profile/backend pipelines via Jenkins and SonarQube for AWS deployment
- 5+ years front-end experience with strong React and TypeScript background
- Experience shipping data-dense enterprise interfaces and ability to explain grid and dashboard decisions
- Strong state management and front-end security knowledge (XSS, CSRF, CSP)
- Solid testing discipline
- Experience building SaaS or multi-tenant products, with Git, CI/CD and cloud deployment
- Daily use of AI coding tools (e.g., Cursor or Claude Code)
- Degree in engineering, computer science or related field, or equivalent experience
- React Native experience is valued
- collaboration
- ability to communicate complex UI decisions
- high pace and accuracy
- React
- TypeScript
- React Native
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Key Details
- Date Posted: 02 Oct 2026
- Location: london
- Employment: Permanent
- Workplace: Hybrid
- Specialism: General
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Oscar
Verified Practice / CorporateVerified accountancy practice or enterprise finance team operating across the UK economy.
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