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.
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
Required
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
Nice to have
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.
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)
Paradox Interactive is a leading, global publisher of deep, replayable games.
We create intellectually challenging games, with long lifespans and a vibrant player communities. Our heart and soul lies in strategy and management games but we occasionally make calculated bets in other genres where we believe there is break-out potential.
Our steadily-growing portfolio includes titles from established series like Crusader Kings, Cities: Skylines, Europa Universalis, Stellaris and Hearts of Iron. Millions of people from all over the world play our games every month, and participate in their continuous development through their purchases and insights they share with us.
Paradox offices are located in Sweden, France, Netherlands, Finland, and each houses creative staff, skilled in a wide variety of areas of expertise. No matter the specialization, each of us contributes to giving our players the best game experiences and value for their money and time.
Everyone at Paradox is expected to know our players, why they love our games and have an awareness of how their work impacts them in the end. We foster highly-engaged communities, where we encourage our fans to share their sentiment, and empower our colleagues to turn that feedback into action that benefits both our business and fans.
If that sounds good, and you share our vision, we’d love you to join us. Check out our career page: https://career.paradoxplaza.com/#jobs
