AI Software Engineer (Agent Engine)

Quick Facts

• Role: Member of Technical Staff, Agent Engine (AI Software Engineer)
• Focus: Building agentic experiences and frontier intelligence systems

Description

Join the Agent Engine team to design and build powerful agentic systems and experiences, including agent infrastructure and APIs. You’ll tackle open AI challenges such as high-stakes agent harnesses, action/decision models from complex multimodal states, secure-by-design permission and payload systems, and reliable execution across local and headless cloud environments.

Responsibilities

• Design frontier agent harnesses and systems for mission-critical user work
• Leverage action and decision models that choose how to accomplish user objectives based on multimodal state
• Provide consistently excellent experiences across local execution, headless cloud, custom executors, and other environments through sound system design and flexible abstractions
• Develop secure-by-design capabilities including permission architectures and payload classifiers
• Design optimal data representations and interaction modes between agents and their environments

Requirements

• Strong foundational familiarity with the AI systems stack
• Proficiency in Python (bonus: TypeScript, Go, and/or Rust)
• Significant experience in at least one area: harness engineering; agent skills and plugin architectures; model training and reinforcement learning; browser technologies (CDP, Playwright, extension development)
• Strong technical intuition and taste for user experience excellence
• Comfort working in a small, fast-moving team with a bias toward ownership
• Passion for shipping products that surprise and delight