Affirm
Senior Software Engineer, Backend (Consumer Authentication Platform)
Canada
UTC-8 to UTC-3.5 $112k to $155k per year Full time
Senior
- Where you can live
- Remote Canada
- Working hours
- Overlap with UTC-8 to UTC-3.5
- Salary
- CAD 153,000 to 213,000 per year
- Posted
- September 23, 2026
Summary from the posting
As a senior engineer, you will lead significant technical initiatives, influence the architecture and evolution of the platform, and help the team deliver secure authentication capabilities that can be reused across products, merchants, and geographies.
What You’ll Do
- You will own the technical design and delivery of significant authentication platform capabilities, leading projects from early requirements and architecture through implementation, rollout, and ongoing operation.
- You will build secure, highly available systems that support consumer sign-in, authentication factors, account recovery, step-up authentication, session management, authorization, and identity federation.
This is a short summary. The full description, requirements and the application form are on Affirm's own career page.