Expertise in designing, developing, and maintaining runtime character animation systems and architecture, including animation playback, pose evaluation, blending, layering, additive animation, IK, procedural animation, locomotion presentation, ragdoll/physics integration, animation compression, and how to represent, select, sequence, synchronize, and blend animation at runtime. This role requires someone comfortable working in a custom engine environment, evaluating existing animation architecture, and helping evolve bespoke runtime animation workflows rather than relying on off-the-shelf animation graph, state machine, or animation-driven gameplay systems.