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Senior Software Engineer (Backend, Partner Merchant Interface)

Exclusive opportunity

Onsite

Senior Software Engineer (Backend, Partner Merchant Interface)

Affirm

Senior Software Engineer (Backend, Partner Merchant Interface)

Skills

KotlinPythonMySQLAWSKubernetes

1 month ago

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Important information


Contract type:

Permanent

Location:

Ottawa, ON, Canada

Work mode:

Onsite

Published on:

19 September 2026

What they need


  • The Partner Merchant Interfaces - Integration team within Decisions Foundations is growing and we are looking for a Software Engineer
  • You will be part of a fast paced team which is responsible for the APIs that Partners and Merchants use to integrate with Affirm, and also power some of our top partners like Amazon and Stripe
  • With the support of your team, you will work on tasks that contribute to the team’s projects and goals
  • You will work collaboratively and proactively with your team and stakeholders, bringing them along for your work and helping to create visibility and dialog regarding the risks and trade-offs related to your work
  • You will strike the right balance of speed and quality in your work, ensuring that we hit our business goals while protecting our systems from downtime
  • You will contribute to a sense of community on your team by engaging in growth and development activities

Benefits

  • Compensation: We have a simple, flexible, and transparent remote-first compensation structure so you can make the best decisions for yourself and your family
  • Spending Wallets: Access tech, food, lifestyle, and family planning wallets for your expenses
  • Supportive Communities: Get involved with our employee resource groups and community groups
  • Remote-first Workforce: If your role is remote, you can set up shop anywhere in your home country
  • Generous Time Off: Take the time you need when life happens
  • Health Benefits: Get a plan that fits your needs
  • Mental Healthcare: Take care of your mind with great mental health programs
  • Parental Leave: Birth and non-birth parents get 18 weeks’ paid leave. Plus, a 4-week return-to-work transition program, at full base pay
  • Away Days: We offer 20 company-wide paid days off—which help our teams collectively pause to recharge
  • Learning & Development: Engage in exciting learning programs to level up your growth- You have mastered taking a simple problem or business scenario into a solution that interacts with multiple software components, and executing on it by writing clear, easily understood, well tested and extensible code
  • You have previous work or internship experience designing, developing and launching backend systems at scale and are experienced using one of Python or Kotlin
  • You are familiar with the building blocks of distributed systems, and the technologies like AWS, MySQL and Kubernetes
  • Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders
  • You have strong verbal and written communication skills that support effective collaboration with our global engineering team
  • You are comfortable navigating a large code base, debugging others’ code, and providing feedback to other engineers through code reviews

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