Join us as Senior Game Designer on our existing and upcoming games!

As a Senior Game Designer, you own complex systems and features from concept to live operation. You’re hands-on with design, set a high quality bar through your craft, and help shape direction through expertise and sound judgment, not people management.

You report to the Lead Game Designer and work alongside other Seniors, each bringing specialized strengths to the team. You don't manage people, but you shape how design work gets done through example, mentorship, and technical leadership.

About the Supremacy Franchise
The Supremacy Franchise has reached over 90 million players lifetime, with 2.2 million monthly active users and 300,000+ concurrent commanders in peak campaigns. Our mission: deliver best-in-class strategy experiences that challenge, engage, and reward players over weeks, months, and years.

YOUR MISSION

• Own core systems and features end-to-end, from design and documentation to launch and live iteration

• Design deep, long-term gameplay systems (progression, combat, economy, alliances, etc.)

• Set quality standards through strong specs, clear decision-making, and technical leadership

• Design with live operations in mind, using player data and feedback to iterate sustainably

• Balance and tune interconnected systems for long-term retention

• Collaborate closely with Tech, Art, Product, Marketing, and Community teams

• Contribute to roadmap discussions and long-term vision

• Mentor other designers through feedback, reviews, and collaboration
  

• Proven experience shipping and iterating on live-service, F2P mobile games

• Strong system and feature design skills across complex, interconnected mechanics

• Excellent design documentation and communication skills

• Data-informed mindset (metrics, player behavior, live feedback)

• Ability to lead through expertise, pragmatism, and collaboration

• Comfort navigating constraints, ambiguity, and tradeoffs
  

• Experience with strategy, simulation, or management games

• Passion for grand strategy and competitive PvP systems

• Experience working in hybrid or remote teams
  

Why You'll Love Working With Us

A Global Team, A Shared Purpose

Our strength lies in our diversity. With over 30 nationalities represented across our two locations, we’re united by a shared passion for strategy games and a bold vision for the future. We celebrate what makes each of us unique – our perspectives, our stories, and the paths that led us here.

Work Your Way

Whether you're crafting code from a harbor-view desk in Hamburg or fine-tuning design details under the Maltese sun, we support flexible hybrid work models that empower you to do your best work – wherever you are.

Grow With Us

At Twin Harbour, your journey matters. Our Career Path Framework and mentorship culture provide the clarity and feedback you need to take the next step – whether you’re deepening your expertise or branching into new disciplines. We invest in your growth with language courses, e-learning platforms, and support for conferences and training.

We’re Human First

We believe that great teams are built on trust, respect, and good humor. From game nights to casual drinks, quiz nights, and karaoke, we don’t just work together – we connect, play, and support each other like a true crew.

Join Twin Harbour Interactive

Where Strategy Meets Vision.

Twin Harbour Interactive is a global strategy game powerhouse, shaping the future of long-term multiplayer gaming. With offices in Hamburg and Malta, we design strategy games that bring people together – across borders and generations.

Whether you’re an expert tactician or an imaginative world-builder, there’s a place here for you to grow, thrive, and leave your mark.