Senior Software Engineer, Backend (Payments)

TL;DR

Senior Backend Engineer (Payments): Building and optimizing Affirm's Payment Processing Network with an accent on high throughput and high availability. Focus on developing scalable distributed systems, facilitating international expansion, and improving key financial metrics.

Location: Remote (UK)

Salary: £120,000 - £168,000

Company

Affirm is reinventing credit to provide honest and transparent buy now, pay later options without hidden fees or compounding interest.

What you will do

• Own and deliver quarterly goals for the Consumer Payments team, leading engineers through ambiguity.
• Collaborate with product management, design, and analytics to ideate and define technical plans.
• Proactively identify and resolve project, process, or technology bottlenecks.
• Support the operations and availability of team artifacts through monitoring and on-call efforts.
• Foster a culture of quality by improving code review and design standards.
• Mentor and develop talent on the team through feedback and guidance.

Requirements

• 4+ years of experience designing and launching backend systems using Python or Kotlin.
• Proven track record with distributed systems using AWS, MySQL, and Kubernetes.
• Experience creating elegant, simple, and extensible technical plans for significant features.
• Proficiency in making safe, significant changes within a large codebase.
• Must be based in the UK.
• Strong verbal and written English communication skills for global collaboration.

Culture & Benefits

• 100% subsidized medical, dental, and vision coverage for employees and dependents.
• Flexible spending wallets for technology, food, and lifestyle needs.
• Competitive vacation and holiday schedules to ensure work-life balance.
• Employee Stock Purchase Plan (ESPP) for discounted share acquisition.
• Remote-first culture allowing flexibility within the country of employment.