Member of Technical Staff (Model Behavior)
$200,000–$330,000 year
RemoteUnited States or San Francisco, California, United States
Job Summary
Design, test, and optimize prompts, skills, tools, and memory to shape Perplexity's AI responses across products and use cases. Build self-improvement loops to steer model behavior and guide how systems utilize external resources. Help experiment with and release new models while identifying inconsistencies and failure modes in outputs through well-designed research projects. Share intuition for prompt design and context engineering best practices with engineers across teams. Track the latest prompting and alignment techniques from industry and academia to bring the best ideas back to the group.
Required Qualifications
- 2 to 10+ years of experience in software engineering or research
- Strong background in software engineering fundamentals
- Technical understanding of LLM-driven and agentic systems
- Experience shaping LLM behavior through prompts, tool and skill design, or memory systems
- Strong written and verbal communication skills, particularly in explaining complex concepts to diverse stakeholders
Desired Qualifications
- Recent experience working on modern LLM-driven products
- Experience working across teams or with external partners
- Experience designing evaluations or benchmarks for AI systems
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