Senior Backend Engineer
Core
Design and scale backend systems powering AI conversations, agent infrastructure, and Shopify integrations for hundreds of storefronts.
Role type
Senior Backend Engineer (AI/Platform)
Builds
AI agent runtime, Shopify infrastructure, data architecture, billing/usage systems
Domain
AI agents, E-commerce, Shopify platform
Deliverable
production ML models
Required skills
Node.js, TypeScript, MongoDB, Postgres, Redis, BullMQ, API design, observability, incident response, mentoring
Preferred skills
Shopify Admin APIs, LLM systems (RAG, tool calling), GraphQL, multi-tenant SaaS architecture
Technologies
Node.js, TypeScript, MongoDB Atlas, Postgres, Redis, BullMQ, Shopify Admin API
Responsibilities
Own backend architecture end-to-end, design agent runtime and tool layers, lead data architecture decisions, drive observability and reliability, build billing and attribution systems, mentor engineers
Seniority
Senior, hands-on IC with architecture ownership
