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Affirm

Staff Software Engineer, Backend – Trust and Safety

Affirm

. Set technical strategy for the team on a year-long time scale and connect it to critical, business-impacting projects .

Posted 9/25/2026full-timeRemote • CanadaLead💰 CA$181,000 - CA$241,000 per yearWebsite

Tech Stack

Tools & technologies
AWSDistributed SystemsKotlinKubernetesMySQLPythonSpark

About the role

Key responsibilities & impact
  • Set technical strategy for the team on a year-long time scale and connect it to critical, business-impacting projects
  • Collaborate with product management, design and analytics throughout the product development lifecycle
  • Define and advocate for technical solutions and operational processes
  • Own team operations and availability, including monitoring, triage rotations, playbooks, policies, testing, alerting and on-call efforts
  • Set code review and design standards and advocate for them through writing and tech talks
  • Develop team talent through feedback, guidance and leading by example
  • Lead complex, business-critical Trust and Safety Foundations initiatives
  • Build and operate foundational systems and data capabilities supporting consumer risk understanding and credit reporting obligations

Requirements

What you’ll need
  • 8+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
  • Extensive track record of developing highly available distributed systems
  • Experience with AWS, MySQL, Spark and Kubernetes
  • Experience delivering major features, system components or deprecating existing functionality through technical and execution plans
  • Ability to write high quality code that is easily understood and used by others
  • Ability to work from low-level language idioms to large-system architecture
  • Experience gathering and iterating on feedback from engineering and cross-functional peers
  • Strong verbal and written communication skills
  • Either equivalent practical experience or a Bachelor’s degree in a related field
  • Must reside in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, or Saskatchewan

Benefits

Comp & perks
  • Monthly stipends for health, wellness and tech spending
  • 100% subsidized medical coverage, dental and vision for you and your dependents
  • Flexible time off
  • Generous holiday calendars
  • Employee stock purchase plan (ESPP) to buy Affirm stock at a discount
  • Remote-first flexibility
  • In-person onboarding experience
  • Inclusive interview process and accommodations for candidates with disabilities