Shape customer authentication at Affirm by building secure login, MFA, and account access features from a remote Canadian location. Python or Kotlin skills support the work.

This Software Engineer II role sits within Information Security and focuses on next-generation customer identity and authentication. You will turn product requirements into backend services for registration, login, authorization, and account lifecycle flows. Your work will connect identity capabilities with web, mobile, and partner applications across B2C and B2B experiences.

Key Responsibilities

Ship smoother login experiences and customer-facing authentication features

Build custom identity integrations for web, mobile, and partner applications

Contribute to design, readable code, automated tests, and reviews





Deploy scoped features to production with team support

Collaborate with engineering and product partners

Requirements

Demonstrated software development through work, projects, or coursework

Foundational backend development knowledge

Understanding of application programming interfaces and databases

Interest in identity protocols or CIAM platforms

Willingness to learn through mentorship and code review

Bring backend development, secure authentication, API integration, and cooperative engineering skills to Affirm’s identity team.

📌 Customer Authentication Software Engineer (Montreal)
🏢 Affirm
📍 Montreal