Senior Game Designer (Remote, 4X Strategy)

About the role

The Collective Ace Group, a service hub in the gaming industry, is looking for a Senior Game Designer to lead the vision and execution of core 4X gameplay systems on one of its strategy titles. You will work in a global team of international professionals, collaborating closely with Product, Engineering, Art and Live Ops to build balanced, rewarding loops that drive player engagement and retention.

Key responsibilities

• Architect and iterate on 4X pillars: exploration mechanics, resource economies, technology trees, diplomacy/AI and combat.
• Tune progression curves, difficulty scaling and rewards for mobile session lengths.
• Create clear design documents, flowcharts and mock-ups.
• Rapidly prototype systems (paper-prototypes or in-engine) to validate fun and balance.
• Partner with engineers to implement features and work with artists and UI designers to deliver polish.
• Align with LiveOps and Analytics to define KPIs and A/B test hypotheses.
• Analyse player data and feedback to refine mechanics, economy and monetization.
• Support QA in scenario testing and bug triage for balance issues.
• Guide junior designers through reviews and feedback, mentor other developers and advocate for design standards and documentation.

Required profile

• 4+ years of experience (design, live-ops, product) on commercially released 4X-style titles.
• 2+ shipped mobile games, ideally in the strategy/RTS genre.
• Deep understanding of strategy game economies, tech trees, AI behaviors and combat balancing.
• Experience with live-service features such as season passes, events and leaderboards.
• Familiarity with free-to-play monetization models and soft-currency economies.
• Passion for community engagement and player feedback channels (forums, Discord).
• Excellent written and verbal communication, able to turn complex systems into clear documentation.

Required skills

• Design tools such as Excel, Google Sheets, Miro and Notion.
• Basic scripting or prototyping skills (Lua, Python, C#).
• Hands-on experience with Unity and in-house tools.
• Analytical mindset: defining KPIs, interpreting player metrics and driving data-led decisions.

What we offer

• Work with a group of international professionals with experience from gaming and tech.
• A dynamic environment with challenging projects and real influence on decision making.
• Flexible working hours and the option to work from anywhere in the world.
• Competitive salary and opportunity to grow.