Lead backend observability architecture remotely from Canada, using distributed systems expertise to improve telemetry reliability, performance, and cost.

Affirm seeks a Staff Software Engineer as Observability’s technical lead. You will remain hands-on while defining strategy, mentoring six engineers, and partnering with infrastructure and product teams. The work spans telemetry pipelines, log sampling, wide events, and AI-assisted development instrumentation.

Key Responsibilities:
Own Affirm’s telemetry pipeline architecture at 200+ TB daily
Design log sampling strategies that preserve incident signal
Shape observability practices for agentic development and code review
Define technical strategy and drive cross-functional projects




Mentor engineers and establish quality and operational standards

Requirements:
8+ years designing and launching scalable backend systems
Experience with Python or Kotlin and distributed systems
Knowledge of AWS, MySQL, Flink, and Kubernetes
Telemetry experience with OpenTelemetry, Kafka, or Terraform
Solid communication and platform adoption experience

Bring backend architecture, observability, and technical leadership to Affirm’s remote Canada engineering organization.
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📌 Staff Backend Engineer Observability Toronto
🏢 Affirm
📍 Toronto