Backend Payments Engineer (Remote UK)

Abundant Code; United Kingdom; Remote; GBP 101,000 - 149,000; Full time

Job summary

affirm is a remote-first company reinventing credit to help people pay over time with transparency. The Consumer Payments team ensures that customer data and preferred payment methods are used safely and reliably, moving billions of dollars annually.

You will join as a Backend Software Engineer II for Payments, building scalable services and APIs within a global engineering team. Base pay ranges from £101,000 to £149,000 per year with comprehensive benefits and a flexible work model.

Qualifications

• Total of 1.5+ years of software engineer experience.
• Proficient in Python or Kotlin; backend systems experience.
• Familiar with distributed systems and cloud tech (AWS).
• Experience designing, developing and launching APIs at scale.
• Ability to integrate multiple software components with clear, tested code.
• Comfort with large codebases, debugging and code reviews.
• Demonstrates ownership and seeks feedback for growth.
• Strong verbal and written communication with a global team.

Responsibilities

• Break down large projects into tasks and deliver in phases.
• Collaborate with product, design and analytics on requirements and risks.
• Support operations and availability, monitor metrics, and on-call duties.
• Contribute to team growth through participation in interviews and mentoring.

Skills

Python

Kotlin

AWS

MySQL

Kubernetes

APIs

Distributed systems

Code reviews

Ownership

Backend design

Communication

Tools

AWS

MySQL

Kubernetes

Job description

affirm is a remote-first company reinventing credit to help people pay over time with transparency. The Consumer Payments team ensures that customer data and preferred payment methods are used safely and reliably, moving billions of dollars annually.

You will join as a Backend Software Engineer II for Payments, building scalable services and APIs within a global engineering team. Base pay ranges from £101,000 to £149,000 per year with comprehensive benefits and a flexible work model.