Perplexity
Member of Technical Staff (AI Software Engineer, Agent Engine)
$250K–$405K
San Francisco · Staff · Full-time · Posted Oct 31, 2026
- Experience
- Significant experience in at least one of the listed areas; no years specified.
About the job
Build agentic AI systems and product experiences, including agent harnesses, decision models, execution environments, and secure agent capabilities.
What you'll do
- Design agent systems for high-stakes work and develop models that act on complex multimodal states.
- Build flexible system designs that support local, cloud, and custom execution environments.
- Develop secure-by-design agent capabilities, including permission architectures and payload classifiers.
What they ask for
- Strong foundational familiarity with the AI systems stack.
- Proficiency in Python.
- Significant experience in at least one of: harness engineering; agent skills and plugin architectures; model training and reinforcement learning; browser technologies.
- Strong technical intuition and user experience judgment; comfort with ownership in a small, fast-moving team.
Nice to have
- TypeScript, Go, and/or Rust.
Pay
$250K – $405K USD total pay
Tools
Python, TypeScript, Go, Rust, CDP, Playwright
AI focus
Develop agentic AI systems, decision models, and secure capabilities for accomplishing user objectives.
Model-written summary · the original posting is authoritative