Design and deliver UX interaction solutions for game systems and gameplay features on an unpublished R&D product, partnering with cross-disciplinary teams to implement and validate UI experiences. - Own interaction design from concept through implementation for regular systems and gameplay - Support more complex interaction systems with guidance - Collaborate with design, planning, and engineering to land interface features - Use design docs and prototypes to communicate solutions and logic - Test implemented experiences and iterate based on feedback - Apply learnings from popular games to improve daily design decisions - Ensure designs restore intended logic and visual design effects in-game