Senior GraphQL Engineer (GraphQL Federation) to design, build and scale high-performance GraphQL APIs in a modern TypeScript/Node.js stack, deployed to Kubernetes in a cloud-native environment. This is an ideal contract for a GraphQL specialist who loves clean schemas, resilient services, and production-grade delivery.

The Role (Key Responsibilities)

• Own end-to-end GraphQL API delivery: schema design through to production integration, focusing on performance, maintainability, security, and scalability.
• GraphQL Federation expertise: design and implement supergraphs, subgraphs, resolvers, and governance patterns (versioning, evolution, backward compatibility).
• Build and maintain TypeScript + Node.js backend services, integrating with modern frontends and varied data sources.
• Apply DevOps best practices: CI/CD pipelines (Jenkins, Concourse), Docker, Helm, Kubernetes, and YAML-based deployments.
• Work in an Agile engineering environment: collaborate closely, review PRs, influence architecture, and continuously improve delivery.
• Ensure APIs are observable and reliable in production using modern telemetry and APM tooling.
• Champion GraphQL best practices and share knowledge across teams (mentoring/coaching desirable).

Required Experience (Skills & Tech)

• Strong commercial experience delivering Federated GraphQL in production (schema-first design, supergraph/subgraph architecture, resolvers, schema governance, and API evolution).
• Advanced TypeScript and Node.js backend development.
• Testing experience with modern frameworks such as Vitest and Playwright (API + end-to-end).
• Hands-on delivery with Kubernetes, Helm, Docker, and YAML (cloud-native deployments).
• Observability / telemetry: Prometheus, Grafana, OpenTelemetry, Datadog, APM tools.
• Good understanding of CI/CD, infrastructure-as-code concepts, and production support best practices.
• Ability to improve existing codebases and influence architectural direction.
• Experience mentoring / coaching engineers is a plus.

Location:West London (Hybrid 2 days/week on-site)

Contract:6 months initial (extensions highly likely)
Start:ASAP
Eligibility:UK-based candidates only
Rate:Market rates (Outside IR35)

Please send yourlatest CV, confirming:

• Availability / start date
• Outside IR35 day rate

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