Senior Node.js Execution Engineer (Streaming - Backend Systems)

We’re building a real-time AI App Builder.

The system architecture and core algorithms are already defined by a Principal Architect.

Frontend is handled by a separate team.

We’re hiring a Senior Execution Engineer, someone who specializes in turning complex backend designs into production-grade code.

This role values precision, correctness, and reliability over architectural creativity.

Your Mission

• Implement the designed architecture faithfully
• Build high-performance streaming endpoints

• Run non-blocking background pipelines:

   

  • billing (token counting)
  • versioning
  • persistence
  • analytics

   

• Ensure correctness under:

   

  • client disconnects
  • retries
  • concurrent requests

   

• Translate diagrams and specs into clean Node.js + TypeScript code

Critical Mental Model

We explicitly separate:

• Request lifecycle (HTTP connection)
• Workflow lifecycle (business logic)

Client disconnects must not:

• cancel persistence
• corrupt state
• leak memory

Candidates who naturally reason in this model will feel at home here.

Tech Requirements

• Strong Node.js + TypeScript
• Web Streams API
• Abort handling & cleanup
• PostgreSQL (schemas, constraints, migrations)
• Concurrency awareness (race conditions, idempotency, immutability)

Runtime Reality

• Next.js 14 App Router
• Some workloads run outside Next.js in long-running Node services
• Experience with Docker / VPS / cloud runtimes is a plus

Nice to Have

• Background job systems
• Streaming infrastructure
• Durable workflows
• Billing or analytics pipelines