Staff Applied Scientist - Agentic Interfaces

Datadog Datadog · Enterprise · New York, NY · Dev Eng

Staff Applied Scientist focused on defining and building the evaluation systems for Datadog's AI agent integrations. This role involves setting metrics, creating eval datasets and harnesses, and conducting applied research on agent-data interaction, tool selection, and multi-turn evaluation. The goal is to ensure demonstrable improvements in agent performance and quality.

What you'd actually do

  1. Own the evaluation strategy for Datadog's AI agent integrations. Define the metrics — offline and online, quality and cost, single-turn and trajectory-level — that the team and the broader organization optimize against.
  2. Build the eval datasets, golden traces, and regression harnesses that catch quality changes before they hit customers, and make those assets reusable by every team contributing tools to the platform.
  3. Drive measurable improvements to retrieval relevance, tool-selection accuracy, and context efficiency, partnering closely with the AI engineers on the team who build the underlying platform.
  4. Run applied research on the open problems in agent–data interaction: tool selection under large catalogs, multi-turn agent evaluation, grounding and hallucination control on live telemetry, cost/quality tradeoffs at scale.
  5. Partner with the Bits SRE, Bits Assistant, and Bits Dev Agent teams so first-party agents benefit from the same measurement substrate as third-party integrations, and so learnings move freely in both directions.

Skills

Required

  • BS/MS/PhD in a scientific field, or equivalent experience
  • 10+ years of relevant engineering or applied science experience, including time as a technical lead
  • Proven track record of leading ML or GenAI initiatives in a product-driven environment, from research through production
  • Significant experience with evaluation, experimentation, or measurement of ML systems at scale
  • Strong product mindset and ability to drive initiatives across cross-functional teams
  • Ability to thrive in ambiguity and make sound technical calls

Nice to have

  • Experience with Datadog platform
  • Experience with agentic interfaces
  • Experience with observability data

What the JD emphasized

  • evaluation systems
  • measurement systems
  • define what "good" means
  • design the evals
  • build the datasets
  • define the metrics
  • open research questions
  • evaluate an agent end-to-end
  • score tool selection
  • build a measurement system
  • evaluation strategy
  • Define the metrics
  • Build the eval datasets
  • measurement system
  • applied research
  • multi-turn agent evaluation
  • measurement substrate

Other signals

  • Defining and building measurement systems for AI agents
  • Focus on evaluation, quality, and cost optimization
  • Addressing open research questions in agent evaluation