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Senior Backend Engineer

📍 Location
toronto
⏰ Job Type
Full-time
📅 Posted
June 01, 2026

About the Role

We’re looking for a Senior Backend Engineer to build and scale the GenAI Lens backend platform. This is a production-focused role centered on MongoDB data design and performance, scalable/durable data ingestion and processing pipelines, and operating high-throughput systems with strong observability and reliability.

You’ll also help build and evolve our API layer (GraphQL and JSON‑RPC). Experience with GraphQL is a strong plus, but the core focus is data systems and platform engineering. You should be comfortable working in a product that leverages modern AI technologies (embeddings, vector search, LLM integrations) and understand the practical standards that come with them—evaluation, guardrails, observability, and cost controls.

What You’ll Work On

Maintain and improve our data pipelines to keep data flowing reliably from ingestion to delivery.

Scalable, durable data ingestion and processing pipelines (event‑driven, fault‑tolerant workflows; retrie...

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