Node.js Developer

Node.js Developer

Rate: £625 a day

IR35 Determination: This role is Inside IR35

Location: Remote

You will join a global IT consultancy delivering digital transformation to a public sector body.

Key Duties and Responsibilities

• Build and harden Node.js microservices running on Azure Container Apps, orchestrating asynchronous, file-based and Delta-linked workflows with strong reliability, observability, and security
• Design and implement Node.js/TypeScript services (Express/lightweight HTTP) for async job orchestration.
• Implement FIFO/round-robin workers, leases/heartbeats, retries/backoff, and idempotency keys.
• Integrate with Azure SQL (mssql), ADLS Gen2, Storage Queues/Service Bus, and ADF triggers.
• Enable real-time notifications (SignalR/WebSockets)
• Contribute to CI/CD (GitHub Actions) and containerisation best practices.
• Operate securely inside private-network Azure environments (Managed Identity, RBAC, Private Endpoints).
• Enforce config-driven processing (JSON configs) with robust error handling, telemetry, and full traceability

Required Industry Knowledge and Competencies

• Strong Node.js/TypeScript in production microservices (HTTP + background workers).
• Understanding of Azure Container Apps, Storage (Blobs/Queues), and Managed Identity integration.
• SQL proficiency (Azure SQL), handling transactional updates and retries.
• Solid reliability engineering skills - idempotency, timeouts, circuit breakers, and retry strategies.
• Angular/SPA integration (SignalR), file validation (Excel/CSV), or SFTP connector experience.
• Familiarity with private endpoint architectures and security-first deployments.