AI Software Engineer (Member of Technical Staff, Agents)

* As an engineer on our Agents team, you will bring AI expertise, sharp product intuition, and a tinkerer’s mindset to advance the frontier of what agents can accomplish for our millions of devoted users * You will work across applied research and engineering to solve many open problems in AI * Designing AI agents to navigate the digital world and perform increasingly valuable units of work for our users * Training action and decision models that determine, based on complex multimodal states, how to accomplish user-specified objectives * Providing consistently excellent experiences across desktop, mobile, headless cloud, and other environments through flexible abstractions and frictionless backgrounding * 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 * Engineer agent harnesses that connect powerful models with the environments and tools required to perform economically valuable work for users * Drive cutting-edge AI capabilities across multiple layers of a rapidly growing product in the AI agents space * Develop and leverage cutting-edge AI models, infrastructure, and browser technologies to advance the capability frontier and scale those capabilities for a rapidly growing userbase * Ensure a high craft and quality bar, in both AI agent performance and user experience * Collaborate with fellow engineers, designers, product managers, data scientists, and others across the company to integrate core Perplexity functionality into our frontier agentic products and vice-versa * Contribute to product reliability, code quality, AI evaluation, testing, and maintenance across the broader team * Context engineering and tool interfaces for frontier AI models * Significant experience in at least one of the following areas: * Proficiency in Python (bonus points for TypeScript, Go, and/or Rust) * Browser technologies (CDP, Playwright, extension development, etc.) * Strong product intuition and taste for user experience excellence * Post-training and reinforcement learning (particularly for multimodal models) * Strong foundational familiarity with the full AI product stack * A passion for shipping products that surprise and delight * Comfortable working with a small, fast-moving team, must be willing to dive in and take ownership