As a Senior Systems Designer, you'll be embedded in the client's design team, owning core gameplay and progression systems for a co-op focused Action Adventure RPG. The role - Design, document and balance gameplay systems such as combat, progression, loot, economy and abilities - Build and iterate on systems directly in Unreal Engine, using Blueprints and data tables to prototype and tune - Design systems that scale across solo, co-op and multiplayer play, including party balance and shared rewards - Use playtest feedback and telemetry to refine pacing, difficulty and player retention - Work closely with engineering, combat, narrative and UI teams to take features from concept to ship What you'll need - Shipped credits on at least one successful Action, Adventure or RPG title on console - Experience designing for co-op or multiplayer games - 5+ years in a systems or gameplay design role - Hands-on experience in Unreal Engine 4 or 5, including Blueprints and data-driven workflows - Strong spreadsheet and balancing skills, with clear design documentation - Comfortable working remotely and independently inside a larger studio team Nice to have - Experience on live service or post-launch titles - Familiarity with GAS (Gameplay Ability System) - Scripting experience in Python or similar for balancing tools