Perplexity

Perplexity

Member of Technical Staff (Model Behavior)

San Francisco · Staff+

Sponsorship not specifiedDetected 1 day ago
LLMsResearchCommunication

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odds of building a lasting career here

16Unrated
Cap-exempt (no lottery)0
Sponsors this role0
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70

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About the role

  • We're hiring software engineers for the Model Behavior team to help shape how Perplexity's AI products behave: the style of their responses, and the way they use tools, skills, and memory.
  • The ideal candidate for this role has a strong software engineering background, and an analytical, experiment-driven approach to solving challenging problems.
  • You'll work on context and prompt engineering to shape model behavior and style, and to guide how models use tools, skills, and memory across our products.

Responsibilities

  • Context Engineering: Design, test, and optimize the prompts, skills, tools, and memory that shape Perplexity responses across products, features, and use cases.
  • Build self-improvement loops to steer the prompt, improve tool/skill use, and improve the ability to draw on memory.
  • Research & Analysis: Identify inconsistencies and failure modes in model outputs through well-designed research projects, for both internal and production systems.
  • Knowledge Sharing: Help engineers across teams build intuition for prompt design and context engineering best practices.
  • Experience shaping LLM behavior through prompts, tool and skill design, or memory systems.
  • Design, test, and optimize the prompts, skills, tools, and memory that shape Perplexity responses across products, features, and use cases.

Requirements

  • 2 to 10+ years of experience in software engineering or research.

Nice to have

  • Recent experience working on modern LLM-driven products.
  • Experience designing evaluations or benchmarks for AI systems.

Skills

  • the style of their responses, and the way they use tools, skills, and memory.

This listing is sourced directly from Perplexity's careers page and normalized into a canonical job model.