AI Software Engineer (Agent Engine)

Quick Facts

• AI Software Engineer (Agent Engine)

Description

Join the Agent Engine team to design and build agentic experiences and frontier intelligence systems. You’ll apply AI expertise to solve open problems across agent harnesses, action/decision modeling for complex multimodal states, cross-environment execution (local and headless cloud), and secure-by-design permission architectures.

Responsibilities

• Design frontier agent harnesses and systems for high-stakes, mission-critical user work
• Develop action and decision models to achieve user-specified objectives from complex multimodal states
• Ensure consistently excellent agent experiences across local execution, headless cloud, custom executors, and other environments
• Build secure-by-design capabilities via permission architectures, payload classifiers, and related methods
• 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: harness engineering; agent skills and plugin architectures; model training and reinforcement learning; browser technologies (CDP, Playwright, extension development)
• Strong technical intuition and focus on user experience excellence
• Comfortable working in a small, fast-moving team with strong ownership
• Passion for shipping products that surprise and delight