Affirm
Senior Software Engineer, Backend (PBA - Growth)
$173K–$255K
Remote US +1 · Remote · Senior · Full-time · Posted Jul 24, 2026
- Location
- Remote US
Remote Canada - Experience
- 4+ years.
- Education
- Bachelor’s degree in a related field or equivalent practical experience.
About the job
Leads backend engineering for the PBA Growth team, delivering scalable merchant and partner integrations and supporting their reliability and operations.
What you'll do
- Own quarterly team goals, guide engineers through ambiguous problems, and support delivery.
- Collaborate with product, design, and analytics to shape solutions and assess technical risks and trade-offs.
- Monitor system availability, lead operational support, and promote engineering quality through standards, feedback, and mentorship.
What they ask for
- 4+ years designing, developing, and launching backend systems at scale using languages like Python or Kotlin.
- Experience developing highly available distributed systems using technologies like AWS, MySQL, and Kubernetes.
- Experience planning and delivering significant features or system components with extensible design; ability to make safe changes in a large codebase.
- Strong verbal and written communication skills for collaboration with a global engineering team.
Pay
$195,000 - $255,000 USD base salary; $173,000 - $233,000 USD base salary
Tools
Python, Kotlin, AWS, MySQL, Kubernetes
Model-written summary · the original posting is authoritative