Senior Software Engineer, Backend (ML Feature Platform)

Location: Remote US or Remote Canada. Remote-first role; occasional in-person office work and an in-person onboarding experience may be required.

Base pay: $195,000–$225,000 per year for CA, WA, NY, NJ, and CT; $173,000–$233,000 per year for all other U.S. states.

Company

Affirm provides transparent, predictable pay-over-time solutions without hidden fees or surprises.

What you will do

• Own and deliver quarterly team goals, lead engineers through ambiguous, open-ended problems, and support delivery.
• Collaborate with product management, design, and analytics on ideation, technical constraints, risks, and trade-offs.
• Identify and lead solutions for project, process, technology, and business issues.
• Operate and improve team artifacts by creating and monitoring metrics, escalating issues, and supporting on-call efforts.
• Set and improve code review and design standards, and promote quality and ownership through writing and technical talks.
• Develop team talent through feedback, guidance, and technical leadership.

Requirements

• 4+ years of experience designing, developing, and launching backend systems at scale using languages such as Python or Kotlin.
• Experience developing highly available distributed systems with technologies such as AWS, MySQL, and Kubernetes.
• Experience defining technical plans for significant features or system components using elegant, simple, and extensible designs.
• Ability to write high-quality, maintainable code and make significant changes safely in large codebases.
• Proactive ownership of professional growth, including seeking feedback from teammates, managers, and stakeholders.
• Strong verbal and written communication skills for collaboration with a global engineering team.
• Equivalent practical experience or a bachelor's degree in a related field.

Culture & Benefits

• Remote-first environment with flexibility within the country of employment.
• 100% subsidized medical coverage, plus dental and vision coverage for employees and dependents.
• Monthly technology, health, and wellness spending stipends.
• Flexible time off and generous holiday calendars.
• Employee stock purchase plan with discounted Affirm stock.
• Inclusive interview process with accommodations available for candidates with disabilities.