Member of Technical Staff (AI Software Engineer, Agent Engine)New$250K–$405K

Perplexity
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The opportunity

Perplexity is seeking energetic engineers to join our highly driven Agent Engine team. The Agent Engine team designs and builds powerful agentic experiences including Perplexity Computer , the Comet ecosystem, our Agent API, and more.

What you'll do

  • Designing frontier agent harnesses and systems to perform high-stakes, mission-critical work for our users;

  • Leveraging action and decision models that determine, based on complex: multimodal states, how to accomplish user-specified objectives;

  • Providing consistently excellent experiences across local execution, headless: cloud, custom executors, and other environments through sound system design and flexible abstractions;

  • Developing permission architectures, payload classifiers, and other methods: to implement secure-by-design agentic capabilities;

  • Designing optimal data representations and modes of interaction between agents and their environments;

  • and much, much more.

What they're looking for

  • Strong foundational familiarity with the AI systems stack.
  • Proficiency in Python (bonus points for TypeScript, Go, and/or Rust).
  • Significant experience in at least one of the following areas: Harness engineering
  • Agent Skills and plugin architectures
  • Model training and reinforcement learning
  • Browser technologies (CDP, Playwright, extension development, etc.)
  • Strong technical intuition and taste for user experience excellence.
  • Comfortable working with a small, fast-moving team; bias toward ownership.