Remote-First Senior Backend Engineer: Ownership & Scale

Affirm; Greater London; Remote; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Remote-first compensation structure

Spending Wallets

Health Benefits

Parental Leave

Learning & Development

Job summary

Affirm is seeking a senior backend engineer to design, develop, and launch scalable backend systems in a remote-first environment in the United Kingdom. You will own end-to-end delivery, drive architectural decisions, and collaborate with global teams across product, design, and analytics to weigh risks and trade-offs while improving reliability and performance.

We value strong coding standards, AWS, MySQL, and Kubernetes expertise, and we offer generous remote-friendly benefits and a path for

Qualifications

• 4+ years of experience designing, developing, and launching backend systems at scale.
• Proven track record delivering highly available distributed systems.
• Strong communication skills and ability to collaborate with a global engineering team.

Responsibilities

• Own backend systems end-to-end, from design to deployment.
• Design and launch backend features with scalable architecture.
• Improve availability, performance, and operational health of services.
• Collaborate with product, design, and analytics to balance constraints and risks.

Skills

Backend design

Python

Kotlin

Distributed systems

AWS

MySQL

Kubernetes

Code quality

Communication

Team leadership

Tools

AWS

MySQL

Kubernetes

Job description

Affirm is seeking a senior backend engineer to design, develop, and launch scalable backend systems in a remote-first environment in the United Kingdom. You will own end-to-end delivery, drive architectural decisions, and collaborate with global teams across product, design, and analytics to weigh risks and trade-offs while improving reliability and performance.

We value strong coding standards, AWS, MySQL, and Kubernetes expertise, and we offer generous remote-friendly benefits and a path for