Senior Backend Engineer (SaaS, Data & AI) Toronto, Ontario

Job Title: Senior Backend Engineer (SaaS, Data & AI)

Job Summary We’re hiring a Senior / Staff Backend Engineer to lead the design and delivery of SaaS products powered by data, machine learning, and AI. This is a hands‑on role focused on building scalable backend systems, integrating ML/AI capabilities into real customer workflows, and driving technical direction across product areas. You’ll work closely with Product, Design, and Data teams to deliver reliable, high‑impact features and improve engineering standards across the organization.

Roles & Responsibilities

Own the architecture and technical direction for backend systems within a multi‑tenant SaaS platform

Design and build APIs and services (REST, GraphQL, or gRPC) to support product features and integrations

Deliver backend features end‑to‑end, including data modeling, business logic, and system integration

Partner with Product, Design, and Data/ML teams to translate busine...