React Developer - Tech Lead

Project description

The programme is building a resilient, secure, production-grade platform of Python backend services, REST APIs, asynchronous processing components and external integrations, backed by MongoDB and delivered through a React/TypeScript operational user interface with auditable operations and role-based enterprise user journeys. As an experienced React and TypeScript engineer, you will own the platform's operational user interface, including data-rich screens, API integration, status and exception handling, accessible components and role-based enterprise user journeys.

Responsibilities

• Own complex operational screens, reusable components and front-end patterns.
• Integrate REST APIs and manage server state, caching, polling and error handling.
• Implement consistent UI using the agreed enterprise design system.
• Manage client state and role-based UI behaviour.
• Deliver accessible interfaces aligned to WCAG principles.
• Create component, unit and integration tests.
• Optimise performance and troubleshoot complex UI/API behaviour.
• Contribute to design decisions and support Junior engineers.

SKILLS

Must have

• Years of experience: 10+ Must have (strong production expertise):
• Strong production SPA development in React and TypeScript: hooks and reusable components.
• Complex operational UI: dashboards, tables, status/exception displays and changing operational data.
• REST, async handling, caching, polling, loading/error states and correct stale-vs-fresh data presentation with timestamps.
• Translating designs into consistent reusable enterprise components (Nitro or comparable design system).
• State management: Redux Toolkit, Zustand or comparable.
• Hands-on accessible UI delivery (WCAG 2.2 AA) – not awareness only.
• Component/unit/integration testing and maintainable code.
• Role-based journeys (authentication/RBAC) and secure enterprise UI behaviour.
• Responsible use of AI coding/testing assistants. Independently owns complex screens and front-end patterns, contributes to design decisions and diagnoses complex UI/API issues.

Nice to have

N/A

Responsibilities

• • Own complex operational screens, reusable components and front-end patterns. • Integrate REST APIs and manage server state, caching, polling and error handling. • Implement consistent UI using the agreed enterprise design system. • Manage client state and role-based UI behaviour. • Deliver accessible interfaces aligned to WCAG principles. • Create component, unit and integration tests. • Optimise performance and troubleshoot complex UI/API behaviour. • Contribute to design decisions and support Junior engineers.

Skills

• Years of experience: 10+ Must have (strong production expertise): • Strong production SPA development in React and TypeScript: hooks and reusable components. • Complex operational UI: dashboards, tables, status/exception displays and changing operational data. • REST, async handling, caching, polling, loading/error states and correct stale-vs-fresh data presentation with timestamps. • Translating designs into consistent reusable enterprise components (Nitro or comparable design system). • State management: Redux Toolkit, Zustand or comparable. • Hands-on accessible UI delivery (WCAG 2.2 AA) – not awareness only. • Component/unit/integration testing and maintainable code. • Role-based journeys (authentication/RBAC) and secure enterprise UI behaviour. • Responsible use of AI coding/testing assistants. Independently owns complex screens and front-end patterns, contributes to design decisions and diagnoses complex UI/API issues.