4 of 4 Permanent Apollo GraphQL Jobs in the UK excluding London

Senior React Software Engineer

Location
Belfast City, Northern Ireland, United Kingdom
including grids, filters, and dashboards that stay fast with large datasets. Implement real‐time updates using WebSockets or streaming APIs. Integrate with REST and GraphQL APIs, working with backend teams on data contracts. Profile and tune rendering performance, bundle size, and load times. Contribute to micro‐frontend and legacy … protection. Required Skills Strong hands‐on React development experience with TypeScript. State management using Redux Toolkit, React Query, Zustand, RxJS or similar. Rest/GraphQL API integration using Apollo or similar. Must have experience with automated testing using Jest, React Testing Library, Playwright or Cypress. Must have experience ...

Senior React Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
including grids, filters, and dashboards that stay fast with large datasets.* Implement real-time updates using WebSockets or streaming APIs.* Integrate with REST and GraphQL APIs, working with backend teams on data contracts.* Profile and tune rendering performance, bundle size, and load times.* Contribute to micro-frontend and legacy … protection. **Required Skills:** * **Strong hands-on React development experience with TypeScript.*** **State management using Redux Toolkit, React Query, Zustand, RxJS or similar.*** **Rest/GraphQL API integration using Apollo or similar.*** **Must have experience with automated testing using Jest, React Testing Library, Playwright or Cypress.*** **Must have experience ...

Principal Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
brokers across Rates & FX desks. The frontend is a large-scale React/TypeScript monorepo — dense data grids, real-time pricing via WebSocket and GraphQL subscriptions, and complex multi-panel layouts. You’ll set the technical direction and make sure the architecture scales as the product grows.You … observability (Grafana Faro, OpenTelemetry)Design solutions for complex problems: real-time data rendering at scale, performant AG Grid configurations, efficient Redux-saga orchestration, and GraphQL subscription managementLead technical delivery across multiple workstreams — unblock teams, resolve cross-cutting concerns, and ensure consistency across packagesMentor and grow Senior Engineers through architecture ...

Principal Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
brokers across Rates & FX desks. The frontend is a large-scale React/TypeScript monorepo — dense data grids, real-time pricing via WebSocket and GraphQL subscriptions, and complex multi-panel layouts. You’ll set the technical direction and make sure the architecture scales as the product grows. … observability (Grafana Faro, OpenTelemetry) Design solutions for complex problems: real-time data rendering at scale, performant AG Grid configurations, efficient Redux-saga orchestration, and GraphQL subscription management Lead technical delivery across multiple workstreams — unblock teams, resolve cross-cutting concerns, and ensure consistency across packages Mentor and grow Senior Engineers ...