Senior Backend Engineer - Remote UK (Payments)

Abundant Code; United Kingdom; Remote; GBP 120,000 - 168,000; Full time

Benefits offered by this job

Health coverage for you and dependents

Monthly tech setup stipends

Flexible time off

Employee stock purchase plan

Job summary

Affim is seeking a Senior Software Engineer, Backend (International) for a remote UK role. You will own backend design for scalable payments platforms, collaborating with global teams to deliver robust features using Python or Kotlin, AWS, MySQL and Kubernetes.

You will drive technical plans, own code quality, and mentor teammates while supporting international expansion and on-call reliability initiatives. This role emphasizes ownership, impact, and strong communication across regions.

Qualifications

• 4+ years designing, developing and launching backend systems at scale using Python or Kotlin.
• Experience building highly available distributed systems with AWS, MySQL and Kubernetes.
• Ability to define a technical plan for delivery of major features with simple, extensible design.
• Proven track record of making safe, large-scale code changes with tooling and practices.
• Ownership mindset and proactive growth through feedback from team and stakeholders.
• Strong written and verbal communication for collaboration across global teams.

Responsibilities

• Own and deliver quarterly goals for your team and guide engineers through ambiguity.
• Collaborate with product, design and analytics to articulate constraints and risks.
• Identify and lead solutions to project, process, technology or business issues.
• Support operations and availability through metrics, escalations and on-call work.
• Set and improve code review and design standards across the team.
• Develop talent by giving feedback and leading by example.

Skills

Backend design

Distributed systems

Collaboration

Ownership

Education

Not specified

Tools

Python

Kotlin

AWS

MySQL

Kubernetes

Job description

Affim is seeking a Senior Software Engineer, Backend (International) for a remote UK role. You will own backend design for scalable payments platforms, collaborating with global teams to deliver robust features using Python or Kotlin, AWS, MySQL and Kubernetes.

You will drive technical plans, own code quality, and mentor teammates while supporting international expansion and on-call reliability initiatives. This role emphasizes ownership, impact, and strong communication across regions.