Perplexity
Member of Technical Staff (Model Behavior)
$200K–$330K
San Francisco +1 · Hybrid · Staff · Full-time · Posted Jul 30, 2026
- Location
- San Francisco
Palo Alto - Experience
- 2 to 10+ years of experience in software engineering or research.
About the job
Shape how Perplexity’s AI products respond and use tools, skills, and memory through prompt and context engineering, experimentation, and model releases.
What you'll do
- Design, test, and optimize prompts, skills, tools, and memory; build self-improvement loops.
- Experiment with and release new models, and research failure modes in model outputs.
- Share prompt and context engineering practices across teams and track emerging techniques.
What they ask for
- Strong software engineering fundamentals and 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, including explaining complex concepts to diverse stakeholders.
Nice to have
- Recent experience working on modern LLM-driven products.
- Experience designing evaluations or benchmarks for AI systems; working across teams or with external partners.
Pay
$200K – $330K (base salary)
AI focus
Prompt and context engineering to shape model behavior and style, improve tool, skill, and memory use, and evaluate and release models.
Model-written summary · the original posting is authoritative