Senior Backend Software Engineer (Identity)

Quick Facts

• Role: Senior Backend Software Engineer (Identity)

• Focus: Backend Identity systems for KYC, user lifecycle management, and identity decisioning outside North America

• Location: Remote Poland (majority of roles within Poland)

Description

Affirm’s Identity team builds mission-critical backend systems that directly impact checkout conversion, revenue, fraud exposure, and regulatory compliance. You will help shape quarterly technical direction and translate ambiguous business and customer problems into reliable, well-designed solutions for multiple markets.

Responsibilities

• Own and deliver quarterly team goals; lead engineers through ambiguity to solve open-ended problems

• Collaborate with product management, design, and analytics on ideation and technical trade-offs

• Proactively identify and lead resolution of project, process, technology, or business issues

• Support operations and availability with metrics, escalation, and “keep the lights on” on-call

• Set/improve code review and design standards; advocate through writing and tech talks

• Mentor engineers, provide feedback and guidance, and support hiring (including high-signal hiring)

• Use customer feedback to influence technical plans; continuously improve team execution

Requirements

• 4+ years of experience designing, developing, and launching backend systems at scale (Python or Kotlin)

• Proven experience developing highly available distributed systems (AWS, MySQL, Kubernetes)

• Ability to define technical plans for major features/components with elegant, simple, extensible design

• Demonstrated ability to make significant changes in large codebases safely, with tooling and practices

• Ownership of personal growth; proactive feedback seeking from team, managers, and stakeholders

• Strong verbal and written communication for global collaboration

Benefits

• Competitive compensation with base pay and equity (Pay Grade N, Equity Grade 4)

• 100% subsidized medical coverage (medical, dental, vision) for you and dependents

• Monthly stipends for health, wellness, and tech spending; Flexible Spending Wallets for tech, food, and lifestyle

• Time off with vacation and holiday schedules; Away Days wellness days

• Learning & Development programs

• Parental benefits

• Employee Resource & Community Groups

• ESPP (employee stock purchase plan)

• Creative tax benefits may apply, subject to law and company policy