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Senior Software Engineer

Affirm

Remote · CanadaSalary not disclosedfull-timeAffirm Careers

As Affirm experiences explosive growth, our team's contributions are a key enabler. This isn't just another backend role; you'll be building the "financial brain" for our flagship card products, with your work on the critical path for every single swipe.

Responsibilities

  • Drive technical strategy by leading the planning, prioritization, and execution of projects, ensuring alignment with product, technical, and business goals.
  • Lead the end-to-end system design and development of large-scale, high-availability services. This includes building robust APIs and data models for our micro-service and event-driven architectures.
  • Collaborate across functions with partners in Product, Analytics
  • Design, Legal, and Accounting and to define requirements and execute our card loan attribution and lifecycle strategy.
  • Ensure system health and performance by analyzing and troubleshooting complex technical issues, optimizing existing code, and driving solutions that focus on long-term robustness and scalability.
  • Mentor and grow the team by guiding junior engineers, leading technical discussions and design reviews, and championing best practices through code review.
  • What we look for
  • 5+ years of experience in software development or engineering, with a deep understanding of system design and architecture.
  • Motivated leader, inspiring team growth and fostering a culture of continuous learning
  • Excellent communicator, adept at sharing complex ideas with diverse audiences.

Languages

    Work format
    Remote
    Seniority
    Senior
    Posted
    2 Oct 2026
    Last verified
    In the last 5 days

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