AI Software Engineer

Who you are

• Strong foundational familiarity with the full AI product stack
• Proficiency in Python (bonus points for TypeScript, Go, and/or Rust)
• Significant experience in at least one of the following areas:
• Context engineering and tool interfaces for frontier AI models
• Post-training and reinforcement learning (particularly for multimodal models)
• Browser technologies (CDP, Playwright, extension development, etc.)
• Strong product intuition and taste for user experience excellence
• Comfortable working with a small, fast-moving team, must be willing to dive in and take ownership
• A passion for shipping products that surprise and delight

What the job involves

• 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