Backend Engineer - Scale Payments (Remote UK)

Affirm; United States; Remote; USD 135,000 - 199,000; Full time

Benefits offered by this job

Health coverage for you and dependents

Equity rewards

Remote-first culture

Job summary

Affirm, Inc. is hiring a software engineer to design, develop, and deploy backend systems using Python or Kotlin. You will work with a global engineering team to translate business needs into scalable APIs and robust architectures.

The role emphasizes ownership, code quality, and collaboration in a remote-first environment across the UK. The team focuses on reliability, performance, and on-call support, with equity rewards and a modern pay structure aligned to location and experience.

Qualifications

• 1.5+ years of software engineer experience.
• Experience designing, developing and launching backend systems with Python or Kotlin.
• Familiar with distributed systems and technologies like AWS, MySQL, Kubernetes.
• Experience designing, developing and launching APIs at scale using Python or Kotlin.
• Ability to translate simple problems into multi-component solutions with clean, well-tested code.
• Comfortable navigating a large code base and providing feedback via code reviews.
• Demonstrates ownership of personal growth by seeking feedback from team and stakeholders.
• Strong verbal and written communication for collaboration with a global engineering team.

Responsibilities

• Break down projects into tasks and deliver in phases with team collaboration.
• Support product lifecycle with peers, design, analytics, and trade-off discussions.
• Monitor metrics, escalate when needed, and support on-call duties.

Skills

Backend systems

Python or Kotlin

Distributed systems

APIs at scale

Code reviews

Ownership & growth

Global collaboration

Problem solving

Tools

AWS

MySQL

Kubernetes

Git

Job description

Affirm, Inc. is hiring a software engineer to design, develop, and deploy backend systems using Python or Kotlin. You will work with a global engineering team to translate business needs into scalable APIs and robust architectures.

The role emphasizes ownership, code quality, and collaboration in a remote-first environment across the UK. The team focuses on reliability, performance, and on-call support, with equity rewards and a modern pay structure aligned to location and experience.