Affirm

Staff Software Engineer, Backend (Observability)

Affirm
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1 day ago
Remote, United StatesStaff+
H1B sponsor

Base Salary

$204k - $290k/yr

Responsibilities

  • Own the architecture of Affirm’s telemetry pipeline while balancing reliability, query performance, and cost at more than 200 TB per day.
  • Design log-sampling strategies that reduce volume and cost while preserving incident-investigation signal.
  • Shape observability practices for agentic development and code review, including detection of instrumentation gaps.
  • Set the team’s technical strategy and lead year-long, business-impacting engineering initiatives.
  • Drive adoption of observability platform standards across engineering teams through tooling and engagement.
  • Mentor six engineers, provide technical guidance, and establish code review and design standards.
  • Own team operations and availability through monitoring, triage rotations, playbooks, testing, policies, and alerting.
  • Partner with product management, design, analytics, infrastructure, and product teams on technical trade-offs and sustainability.

Requirements

  • 8+ years of experience designing, developing, and launching backend systems at scale using languages such as Python or Kotlin.
  • Extensive experience developing highly available distributed systems with technologies such as AWS, MySQL, Flink, and Kubernetes.
  • Experience building or operating high-volume telemetry systems using technologies such as OpenTelemetry, Kafka, and Terraform.
  • Strong knowledge of observability practices including structured and wide events, sampling, cardinality management, and SLOs.
  • Experience driving adoption of platform standards across multiple engineering teams through tooling and engagement.
  • Experience delivering major system features or components, deprecating existing functionality, and defining technical and execution plans.
  • Ability to write high-quality, understandable code and work from low-level language details through large-system architecture.
  • Strong verbal and written communication skills and experience incorporating feedback from engineering and cross-functional peers.
  • Bachelor’s degree in a related field or equivalent practical experience.

Benefits

  • Remote-first work arrangement with flexibility within the country of employment and occasional in-person office requirements where applicable.
  • In-person onboarding experience for all new hires.
  • 100% subsidized medical coverage, dental coverage, and vision coverage for employees and dependents.
  • Monthly technology, health, and wellness spending stipends.
  • Flexible time off and generous holiday calendars.
  • Employee stock purchase plan with discounted Affirm stock.
  • Inclusive interview accommodations for candidates with disabilities.

Categories

Affirm

About Affirm

1,001-5,000 employees

Affirm provides buy now, pay later installment financing at online and in-store checkout, along with a consumer app and virtual card, for shoppers and merchants. It monetizes through merchant fees and interest on select loans, with no late fees. Founded in 2012 and headquartered in San Francisco, Affirm is a public company listed on NASDAQ that powers payments for thousands of ecommerce retailers.

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