Senior Backend Engineer - Real-Time AI Commerce

OuterSignal; New York (NY); On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

Startup equity

Direct impact on customers

Collaborative engineering culture

Job summary

OuterSignal is hiring a Senior Backend Engineer in New York to architect and own services that process millions of orders across APIs and ML pipelines. You will build queue-based microservices with Redis, Node.js, TS, Postgres, Docker/K8s, and Vercel, and integrate vector DBs to power fast, real-time customer profiles.

You will ship end-to-end features and maintain privacy/compliance while collaborating closely with the founding team on roadmap and future hiring.

Qualifications

• 5+ years of engineering experience, backend infra + distributed systems.
• Experience in fast-paced startup environments.
• Fluent in JavaScript/TypeScript; Python/ML exposure is a plus.
• Experience with vector databases (e.g., Pinecone, Weaviate, pgvector) and RAG.
• Comfort designing schemas and scaling Postgres.
• Ownership mindset; ability to ship quickly in early-stage work.

Responsibilities

• Architect and own core systems processing millions of orders across APIs and pipelines.
• Build queue-based microservices using Redis, Node.js, Typescript, Postgres, Docker/K8s, Vercel.
• Integrate vector databases + RAG pipelines for real-time searchable profiles.
• Ship features end-to-end: APIs, dashboards, integrations (Shopify, Klaviyo, Slack, Zapier, Gorgias).
• Keep us ahead on privacy & compliance.
• Collaborate with Founding Team on roadmap, product direction, and hiring future engineers.

Skills

Backend infra

Distributed systems

JavaScript/TypeScript

Python/ML exposure

Vector databases

RAG architectures

Postgres design & scaling

Ownership mindset

Tools

Redis

Node.js

Typescript

Postgres

Docker

Kubernetes

Vercel

Shopify apps

Job description

OuterSignal is hiring a Senior Backend Engineer in New York to architect and own services that process millions of orders across APIs and ML pipelines. You will build queue-based microservices with Redis, Node.js, TS, Postgres, Docker/K8s, and Vercel, and integrate vector DBs to power fast, real-time customer profiles.

You will ship end-to-end features and maintain privacy/compliance while collaborating closely with the founding team on roadmap and future hiring.