Staff AI Product Engineer

The role

You will build behavior systems and scalable AI architectures for humanoid robots. This involves designing orchestration frameworks for LLMs and decision-making systems to enable autonomous household tasks.

What you will do

• Build an orchestration framework that interfaces with multiple LLMs.
• Build systems that extract, store and index relevant details about environments and people.
• Build decision-making frameworks using behavior trees, hierarchical state machines, or similar AI architectures.
• Partner with Core, World Model, Apps, and Motion teams to integrate behavior systems.
• Improve the realism, robustness, and adaptability of robot behaviors.
• Establish engineering best practices for large-scale behavior development.

Required qualifications

• 6+ years of professional experience (Senior) or 10+ years (Staff) developing conversational AI, NPC behaviors, or system architecture.
• Bachelor's degree in Computer Science, Software Engineering, Robotics, AI, or a related technical field.
• System programming, and software design.
• Expertise building products that leverage the capabilities of LLMs and custom ML models.
• Experience with multiple key AI technologies, such as conversational interfaces, agent orchestration, prompt engineering, MCPs, and management of agent context and memory.
• Strong understanding of decision-making architectures, planning systems, and autonomous agent behaviors.
• Excellent software engineering skills.
• Strong systems thinking with the ability to simplify complex autonomous behaviors into maintainable software architectures.
• Comfortable leading technical initiatives and collaborating across multidisciplinary engineering teams.

Nice to have

• Experience implementing behavior trees, GOAP, hierarchical state machines, planners, or similar AI architectures under tight performance constraints.
• Experience building open-world games, large-scale simulations, conversational AI, or emergent gameplay systems.
• Familiarity with robotics, autonomous systems, reinforcement learning, or embodied AI.
• Experience with navigation systems, pathfinding, task scheduling, perception systems, or world modeling.
• Experience developing tools that enable designers, researchers, or engineers to rapidly author and debug complex AI behaviors.

Benefits

• Comprehensive medical, dental, and vision coverage
• Generous paid time off, company holidays, and parental leave
• 401(k) plan with company match (100% on the first 3% of contributions, 50% on the next 2%)
• Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
• Commuter benefits (transit and parking)
• Short-term and long-term disability, and life insurance
• Employee Assistance Program (EAP) for mental health, financial, and personal support
• Onsite snacks and catered lunches

About the company

1X is building humanoid robots that work in the home, such as the flagship NEO designed to move, learn, and operate in the real world.