Location
toronto
Job Type
Full-time
Posted
May 30, 2026
Job Description
Lead Security Engineer
As the Lead Security Engineer , you will be a hands‑on technical contributor and a security leader . You will write and review code, design secure systems, and work closely with backend and platform engineers to ensure our infrastructure, applications, and services are resilient against evolving threats.
You’ll lead a small, high‑impact team responsible for embedding security into the entire SDLC — from code review and threat modeling to runtime monitoring and incident response. Your mission: make security an integral part of our engineering DNA.
Responsibilities
- Extensive experience detecting and preventing online payment fraud, including fraudulent plan purchases, unauthorized payment method abuse, card‑not‑present fraud, and chargeback manipulation across high‑volume digital transaction flows
- Hands‑on expertise building fraud detection systems for e‑commerce...