Netflix

Software Engineer L5 - AI Observability & Agent Evaluation

Netflix
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1 day ago
Los Gatos, CA, USASenior
H1B sponsor

Base Salary

$388k - $619k/yr

Responsibilities

  • Build observability frameworks and platform capabilities for metrics, logs, and distributed traces across online inference, batch scoring, feature pipelines, and agent orchestration.
  • Develop reusable primitives for monitoring model performance, data quality, drift, and degradation.
  • Build evaluation frameworks for LLM and agentic systems covering response quality, grounding, hallucination, task success, tool use, trajectory correctness, LLM-as-a-judge, and human-in-the-loop scoring.
  • Lead build-versus-buy evaluations and own SDKs, connectors, and APIs for vendor tooling integrations.
  • Create reusable libraries, SDKs, and templates that make observability and evaluation the default for new systems.
  • Provide dashboarding, alerting, and SLO/SLI building blocks for model performance, latency, cost, and reliability.
  • Partner with engineering, product, machine learning, and data teams to turn needs into reusable platform capabilities.

Requirements

  • Experience in software, AI/ML, or platform engineering, including production observability, monitoring, or ML/LLM evaluation.
  • A proven track record designing standards, libraries, SDKs, or frameworks adopted by other teams.
  • Strong coding skills in Python and at least one of Java, Go, or Scala, with experience building production services.
  • Practical experience operating ML models in production through online serving and/or batch processing, including drift, model performance, and data quality.
  • Hands-on experience with modern observability stacks such as Prometheus/Grafana, Datadog, OpenTelemetry, ELK/OpenSearch, or Jaeger/Tempo.
  • Understanding of distributed systems, microservices, and at least one major cloud platform: AWS, GCP, or Azure.
  • Ability to work cross-functionally with ML, data, infrastructure, and product teams and communicate clearly about system behavior, quality, and risk.
  • Experience with vendor integration and VPC deployment.
  • Experience using AI tools as a core part of design, development, testing, and code review workflows.
  • Preferred: hands-on experience with ML/LLM observability and evaluation tools such as Arize, Braintrust, LangFuse, Weights & Biases, Galileo, Vertex AI Model Monitoring, or SageMaker Model Monitor.
  • Preferred: experience building or shipping LLM/GenAI applications and evaluating prompt/result logging, evaluation metrics, LLM-as-a-judge, and human-in-the-loop review.
  • Preferred: experience evaluating agentic systems, including tool use, multi-step reasoning, and trajectory or task-success measurement.

Benefits

  • Annual salary range of $388,000.00-$619,000.00, with compensation selectable between salary and stock options and no bonuses.
  • Health plans, mental health support, a 401(k) retirement plan with employer match, stock option program, disability programs, health savings and flexible spending accounts, family-forming benefits, and life and serious injury benefits.
  • Paid leave programs; full-time salaried employees are immediately entitled to flexible time off.
  • Equal-opportunity workplace with accommodation support available during the interview process.

Tech Stack

AWSAzureDatadogGoGoogle Cloud PlatformGrafanaJavaPrometheusPythonScala
Netflix

About Netflix

10,000+ employees

Netflix builds and operates a global streaming service for TV series, films, games, and live programming, and produces original content through its in-house studio. It serves consumers in 190+ countries via subscription and ad-supported plans on internet-connected devices. Founded in 1997 and headquartered in Los Gatos, California, Netflix is a public company traded on NASDAQ (NFLX).

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