Senior Backend Engineer Payment Protection

Design scalable backend systems for payment protection as a Senior Engineer, working fully remotely from Canada with fraud prevention expertise. Build reliable automation for disputes and risk management. This Senior Backend Engineer role focuses on payment dispute management, fraud prevention, and risk automation. You will own systems through architecture, development, deployment, monitoring, and improvement. The work includes service design, payment provider integrations, rules engines, and collaboration with Engineering and Product leadership.

Key Responsibilities
- Design and maintain scalable backend systems end to end
- Automate notifications, deadlines, evidence, and dispute responses
- Integrate payment service providers across broader payment networks
- Build velocity rules, blocklists, and device fingerprinting
- Monitor workflows and improve reliability through testing

Requirements:
- Proven ownership of backend systems throughout their lifecycle
- Strong software engineering and system design skills
- Experience building systems from scratch
- High standards for code quality, testing, and reliability
- Experience in payments, fraud, or risk management advantageous Lead backend architecture, dispute automation, and risk capabilities that strengthen payment protection for merchants.