Staff Software Engineer, Observability & Profiling

Company: Humanloop
Apply for the Staff Software Engineer, Observability & Profiling
Location: London
Job Description:

Overview

In this role you will design and evolve scalable observability infrastructure to give engineers deep visibility into multi-cluster systems. You’ll work with cross-functional teams to improve reliability, reduce incident response time, and scale telemetry from kernel to application level. The role focuses on building high-throughput data pipelines, instrumentation, and AI-assisted diagnostic tooling to support rapid, data-driven decisions. You’ll contribute to a mission-driven company that aims to make AI safe, steerable, and beneficial at scale.

Pay / Benefits

  • competitive compensation
  • visa sponsorship available
  • office space in San Francisco
  • generous vacation and parental leave
  • flexible working hours
  • equity donation matching (optional)

Responsibilities

  • Design and build scalable telemetry ingest and storage pipelines for metrics, logs, traces, and error data across Anthropic’s multi-cluster infrastructure
  • Develop observability solutions that provide low-overhead visibility into system behavior across the fleet
  • Own and evolve core observability platforms, driving migrations and architectural improvements for reliability and cost efficiency
  • Create instrumentation libraries, SDKs, and eBPF-based auto-instrumentation to emit high-quality telemetry
  • Reduce MTTR through cross-signal correlation, unified query interfaces, and AI-assisted diagnostic tooling
  • Drive fleet-wide efficiency via continuous profiling and utilization telemetry to guide optimizations across CPUs, memory, and accelerators
  • Collaborate with Research, Inference, Product, and Infrastructure teams to tailor observability solutions to diverse needs

Key requirements

  • Hands-on experience building and operating large-scale observability or monitoring infrastructure
  • Deep hands-on experience with observability signals from instrumentation through ingest to query and analysis
  • Understanding of high-throughput telemetry pipelines and scale tradeoffs for data collection, storage, and querying
  • Comfort digging below the application layer into kernel, network stack, or hardware
  • Excellent communication skills and ability to partner with internal teams on visibility and incident response
  • Interest in building foundational infrastructure and navigating ambiguous, high-impact technical challenges
  • Strong collaboration skills
  • Problem-solving orientation
  • Proactive communication
  • eBPF-based observability in production
  • OpenTelemetry instrumentation, collector pipelines, and tail-based sampling
  • Continuous profiling at fleet scale and symbolization

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Posted: September 14th, 2026