Node.js Backend Engineer Location: Hybrid - 1-2 days/week in Reading or Paddington Rate: £475 per day (Inside IR35) Industry: Digital Telecom Duration: 3-month rolling contract About the Role Join a high-impact digital transformation programme with a leading UK telecom provider. We are seeking an experienced Node.js Backend Engineer to design, build, and scale cloud-native Back End systems. You'll be contributing to a cutting-edge platform in a collaborative, agile environment. Key Responsibilities Design and develop scalable microservices using Node.js on Google Cloud Platform (GCP). Build and manage RESTful and GraphQL APIs using OpenAPI 3.0, Swagger, and YAML. Implement custom API policies using Node.js, JavaScript, or Python. Deploy and manage containerized services with Docker and Kubernetes. Contribute to CI/CD pipelines using GitHub, GitLab, Terraform, Ansible, or Puppet. Ensure application security (OAuth 2.0, OIDC, CSRF, CORS, cookie management). Write and maintain unit and functional tests (Cypress, Mocha, Jest, etc.). Monitor and troubleshoot applications using Splunk, StackDriver, Datadog, or Grafana. Work with SQL and NoSQL databases including PostgreSQL, MySQL, MongoDB, and Redis. Optimise Back End performance for high availability and resilience. What You Must Bring Strong expertise in Node.js, including asynchronous programming and non-blocking I/O. Deep understanding of microservices architecture and related patterns (API Gateway, Sidecar, Service Discovery). Experience with Fastify or similar Node.js frameworks. Proficiency with containerization and cloud-native deployment. Familiarity with DevOps practices and tools (eg Terraform, Ansible, CI/CD workflows). Solid grasp of application and API security best practices. Ability to mentor junior developers and support team development. Clear, confident communication with both technical and non-technical stakeholders. Strong problem-solving skills and experience in root cause analysis. Apply now to join a forward-thinking team delivering high-performance systems in one of the UK's most innovative telecom projects.