Staff Software Engineer, Backend (Identity International)

Affirm
Poland, Spain, United Kingdom
Workplace: RemoteFull timeGBP 142,000 - 190,000 annuallyFunction: Software EngineeringExperience: 8+ yearsSkills: ["Communication","Ownership","Collaboration","Problem-solving","Leadership"]

Own the technical strategy and execution for backend Identity services that support Affirm’s international expansion outside North America. Lead high-impact projects across Identity Data Management, KYC verification, and decisioning, ensuring technical sustainability and managing risks and trade-offs. Drive “keep the lights on” operations through monitoring, triage, playbooks, and alerting. Set backend quality standards through reviews and design practices, and help grow talent via feedback and technical leadership.

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Affirm
Affirm
3 days ago

Staff Software Engineer, Backend (Identity International)

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Last checked: 5 hours agoStatus: Live

Job Summary

Own the technical strategy and execution for backend Identity services that support Affirm’s international expansion outside North America. Lead high-impact projects across Identity Data Management, KYC verification, and decisioning, ensuring technical sustainability and managing risks and trade-offs. Drive “keep the lights on” operations through monitoring, triage, playbooks, and alerting. Set backend quality standards through reviews and design practices, and help grow talent via feedback and technical leadership.
Location: Poland, Spain, United Kingdom
Workplace: Remote
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Set technical strategy for the team over a year-long time horizon and align it to business-impacting projects.
  • •Collaborate across product development with product management, design, and analytics to ensure technical sustainability and manage risks.
  • •Define and advocate for technical solutions and operational processes to act as a force-multiplier for the team.
  • •Own team operations and availability by establishing monitoring, triage rotations, playbooks, testing, and alerting for on-call support.
  • •Foster quality and ownership through code review and design standards, and support talent growth via feedback and guidance.

Pay and Benefits

Salary: GBP 142,000 - 190,000 annually
Equity and Bonus:Equity
Perks:Health InsuranceDentalVisionPaid LeaveEquity

Key Requirements

  • •8+ years designing, developing, and launching backend systems at scale using languages like Python or Kotlin.
  • •Experience building highly available distributed systems with AWS, MySQL, Spark, and Kubernetes.
  • •Ability to deliver major features or system components, including planning deprecations with clear technical execution.
  • •Comfort working from low-level implementation details up to the architecture of large systems in ambiguous environments.
  • •Strong verbal and written communication skills for effective collaboration with a global engineering team.
Experience:8+ yearsDistributed systemsBackend systems
Skills:CommunicationOwnershipCollaborationProblem-solvingLeadership
Languages:English
Tech Stack:PythonKotlinAWSMySQLSparkKubernetesIdentity Data ManagementKYC VerificationDecisioningMonitoringTriageTestingAlerting

Company Brief

Affirm
Provides point-of-sale lending and buy-now-pay-later (BNPL) solutions for consumers and merchants, enabling installment payments, consumer financing, and embedded financial services through APIs and partnerships with retailers and platforms.
Industry: Lending
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: San Francisco, United States
Founded: 2012
WebsiteLinkedIn