WM
Ontario, British Columbia, Canada· Full-time· Remote
C$110K – C$145K/yr
TypeScriptPythonReactNode.js
A
Market pay estimate
CA$140,000–CA$182,375 / year for comparable Senior Software Engineer roles in Canada. Estimated from 74 similar postings (high confidence) — not stated by the employer.
Role overview
Job description
At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. Affirm's engineering team is building a large-scale, fault-tolerant, and global infrastructure that is shared across multiple financial products, merchants, and vendors. Ensuring that our infrastructure is transparently available to all engineers is critical to the success of the business. We pride ourselves on our culture across engineering of writing blameless postmortems as well as writing detailed tech specs and gathering feedback before large changes to systems. The AI Platform team owns Affirm's paved path for building, running, evaluating, and governing AI systems. Our customers are not only Affirm users, but also every engineer and a growing set of production workloads at Affirm. As a team, we are respon
…About this listing
- Source: Affirm's official careers site (via Greenhouse) · last confirmed on the source 27 Oct 2026
- Posted 26 Oct 2026
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Role market pulse
How Senior Software Engineer demand looks in Canada
Live jobs
162
Posted 30d
50
30d movement
-19.4%
Remote share
34%
Salary listed
77.8%
Salary trend 1Y
Not enough history
What they are looking for
Skills & requirements
Qualification
What We Look For You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin; You have practical experience building with LLMs, agents, or AI frameworks in production: inference APIs, LLM gateways (LiteLLM or similar), MCP, tool calling, evals, or agent runtimes; This position requires either equivalent practical experience or a Bachelor’s degree in a related field; For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law
Department · Infrastructure Platform Eng
Hiring company
Affirm
Technology
At Affirm, we believe that the financial industry works better for everyone when it’s fair, honest, and inclusive. We help people pay over time for almost anything—with no late fees or surprises. Through advanced technology and analytics that look beyond FICO, we’re able to serve a much broader population than other lenders.
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TypeScriptPythonReactSQL
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