Summary  We are looking for an experienced AI Engineer to join our early stage team. In this role you will build systems and features that support a rich open world in Unreal Engine 5. We are looking for someone who is excited by the unique challenges of open world AI systems and who loves working in a collaborative multi-disciplinary environment.  Core Responsibilities  * Design, implement, and maintain AI systems, features, and tools that support a dynamic and reactive open world.  * Collaborate with design, animation, and gameplay teams to prototype, iterate, and deliver new AI behaviors, abilities, and systemic interactions.  * Develop and support AI authoring tools that enable designers to efficiently create, test, and tune behaviors at scale.  * Build performant, well-architected C++ systems optimized for large-scale simulation and open-world streaming.  * Debug and optimize AI performance across multiple platforms, ensuring stability, scalability, and responsiveness.  * Contribute to long-term technical planning for AI systems, including architecture, workflow improvements, and new technology initiatives.  * Provide technical mentorship and support to designers and other developers who use the AI systems you build.  * Collaborate with technical leaders to uphold engineering best practices, coding standards, and documentation quality.   Core Qualifications  * 1+ year of professional experience working in Unreal Engine.  * 5+ years of professional experience working on large scale games.  * Strong working knowledge of Unreal Engine 5 AI tools and systems, such as the following:  * Navigation (NavMesh)  * Behavior Trees  * State Trees  * EQS  * Perception System  * AI Controllers, Blackboards, and related frameworks  * Expertise in modern C++ with strong software architecture, debugging, and optimization skills.  * Proven ability to design complex systems that are scalable, maintainable, and content-friendly.  * Demonstrated experience collaborating across departments and leading cross-functional initiatives involving design, animation, and gameplay engineering.  * Excellent communication skills and a collaborative, solution-oriented mindset.  Plus If...  * Experience building AI for open-world, systemic, or sandbox games.  * Familiarity with Mass Entity, crowd systems, or large-scale AI simulation.  * Knowledge of animation systems (Montages, Motion Matching, Control Rig) and how they intersect with AI behavior.  * Experience developing AI debugging tools or in-editor visualization tools.  * Background in machine learning, utility systems, or experimental AI techniques.  * Passion for emergent gameplay, systemic design, and building living worlds.  Description  * Full time job with benefits.     * Role is on-site in San Rafael, CA.   * Office is located near downtown San Rafael – near transit stations and freeways.     The base pay range for this position is $160,000 to $190,000 per year. Actual compensation is based on market location and may vary depending on job-related knowledge, skills, and experience. We also offer a competitive package of benefits including vacation time, sick time, company holidays, parental leave, medical/dental/vision insurance, life insurance, disability insurance, and 401(k) matching to regular full-time employees. Certain roles may also be eligible for bonus and equity.