UI Programmer, Crusader Kings 3

We are looking for a UI Programmer to join the UX team on Crusader Kings III. In this role you will be the bridge between design and game, turning UX concepts and UI art into interfaces that make CK3's deep systems feel inviting and clear to players. You will work across both the C++ game layer and our in-house UI scripting language, and collaborate closely with designers, artists, and programmers throughout every feature cycle.

What You Will Be Doing

• Design and implement user interfaces - text displays, HUDs, menus, and in-game elements - from concept to shipped feature
• Use our in-house UI scripting language to build interfaces that reflect design intent and connect to the game API
• Implement game-side data models that feed the UI layer
• Debug and maintain the UI to ensure a stable, performant product across supported platforms
• Collaborate closely with UX designers, UI artists, gameplay programmers, and audio throughout the full feature cycle
• Participate in estimations, task breakdowns, code reviews, and retrospectives
• Contribute to the project's UI style guide, design patterns, and shared components, and help teammates grow in UI scripting
• Take on non-UI tasks when the project needs it

What we are looking for

• Professional experience as a UI programmer, gameplay programmer with UI focus, or similar role in game development
• Ability to learn and become productive in new scripting languages, including domain-specific UI scripting languages
• Excellent written and verbal communication skills in English
• A passion for making interfaces accessible to a broad player base
• Genuine interest in UI and game design, and enjoyment of close collaboration with designers and artists

• Experience with C++ in a game development context
• Strong knowledge of UI design patterns
• Experience with UI performance profiling and optimization
• Familiarity with Paradox Development Studio games, especially Crusader Kings III, as a player or modder
• Interest in history, particularly the medieval period

You care about the player experience and are driven to iterate until something feels right. You are positive, responsible, and enjoy the challenge of translating complex systems into clear, satisfying interfaces. You thrive in a collaborative environment where designers, artists, and engineers work closely together.

The team

You will be part of the UX Design discipline on Crusader Kings III, reporting to the Managing Design Lead. Your closest day-to-day collaborators will be UX designers and UI artists, with frequent work alongside gameplay programmers, game designers, audio, QA, and production.

Type of Employment: Full time, permanent (6 months probation)

Location: Stockholm (fully onsite with flexibility)