Member of Technical Staff (AI Software Engineer, Agent Engine)
Perplexity · San Francisco
About this role
Perplexity is seeking energetic engineers to join our **Agent Engine** team. ## What you’ll build The Agent Engine team designs and builds powerful agentic experiences, including: - **Perplexity Computer** (https://www.perplexity.ai/computer) - The **Comet ecosystem** (https://www.perplexity.ai/comet) - Our **Agent API** Our vision is to empower users with agents that can faithfully actualize their intent—however and wherever it’s expressed—through open-ended interactions with the world. ## Responsibilities - Build **agent harnesses** that connect powerful models with the environments and tools needed to perform economically valuable work. - Drive cutting-edge AI capabilities across multiple layers of a rapidly growing AI agents product. - Develop and leverage cutting-edge **AI models, infrastructure, and browser technologies** to expand capability and scale for a growing user base. - Maintain a high craft and quality bar across both **agent performance** and **user experience**. - Collaborate across engineering, design, product, and data science to integrate core Perplexity functionality into frontier agentic products (and vice versa). - Contribute to **reliability, code quality, AI evaluation, testing, and maintenance**. ## Key technical challenges - Designing agents to navigate the digital world and perform increasingly valuable units of work. - Training **action and decision models** that determine how to accomplish user-specified objectives from complex multimodal states. - Delivering consistently excellent experiences across **desktop, mobile, headless cloud, and other environments** via flexible abstractions and frictionless backgrounding. - Developing **permission architectures**, payload classifiers, and other secure-by-design methods. - Designing optimal **data representations** and interaction modes between agents and their environments. ## Qualifications - Strong foundational familiarity with the full AI product stack. - Proficiency in **Python** (bonus: **TypeScript, Go, and/or Rust**). - Significant experience in at least one of: - Context engineering and tool interfaces for frontier AI models - Post-training and reinforcement learning (especially for multimodal models) - Browser technologies (e.g., **CDP, Playwright, extension development**) - Strong product intuition and taste for **user experience excellence**. - Comfortable working with a small, fast-moving team—willing to dive in and take ownership. - Passion for shipping products that surprise and delight.
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