Senior UX Designer (Space Engineers Franchise)

At  Keen Software House , we develop large-scale sandbox simulation games like  Space Engineers 1  and  Space Engineers 2 , built around engineering, construction, destruction, physics, emergent gameplay, and player creativity, together with the proprietary technology that powers them. We are looking for a Senior UX Designer to join our international team working across Space Engineers and Space Engineers 2 .

Space Engineers is a complex sandbox game built around engineering, construction, exploration, survival, and player creativity. That complexity is part of what makes the game unique - but it also creates significant UX challenges. We are looking for someone who can take real ownership of how players interact with our systems, identify usability problems, and turn complex mechanics and information into clear and intuitive player experiences.

Because we are a relatively small team, we are looking for a hands-on and versatile UX Designer who can contribute beyond UX theory, wireframes, and documentation. Strong UX expertise is the foundation of the role, but ideally you also bring visual/UI design skills or, alternatively, experience with technical UI prototyping, integration, or implementation. Visual/UI design is particularly valuable for us given the current composition of the team.

You will work closely with Game Design, Art, Engineering, Production, and QA, helping shape both existing and new features from early concepts through to implementation. We expect you to act as a proactive UX partner - identify friction, challenge existing solutions when needed, test assumptions, and help us establish stronger UX principles across both games. While our studio is based in Prague, we offer the flexibility to work remotely (CET +/- 2 hours).

If you enjoy challenging work, autonomy, impact, and responsibility, come and join us   Required profile 5+ years of professional experience as a UX Designer, Game UX Designer, or similar role, with significant experience working in the video game industry on PC and/or console games Proven experience designing UX for shipped video games, ideally across multiple features or systems Strong portfolio or case studies demonstrating your UX process, including problem definition, user flows, wireframes, prototypes, iteration, and final solutions Hands-on approach to UX design, with experience in at least one adjacent discipline that allows you to contribute beyond UX documentation – ideally UI/visual design, or alternatively technical UI prototyping, integration, or implementation Strong understanding of interaction design, information architecture, user flows, usability principles, navigation systems, and information hierarchy Experience working on sandbox, simulation, strategy, management, or other systems-heavy games Strong experience designing UX for complex and interconnected game systems, such as inventories, building systems, crafting, progression, control schemes, or similar mechanics Ability to make complex mechanics and information understandable and intuitive without removing their depth Strong wireframing and prototyping skills using Figma or equivalent tools Experience creating and evolving UX/UI design systems, interaction patterns, and reusable component libraries Experience designing UX for both mouse & keyboard and controller-based interaction Experience validating UX solutions through usability testing, playtesting, player research, player feedback, analytics, telemetry, or similar methods Knowledge of accessibility principles in game UX Strong design judgment – able to identify usability problems and their root causes, propose practical solutions, and explain design decisions using player needs, evidence, and clear reasoning Ability to work effectively with Game Design, UI Art, Engineering, Production, and QA, understand technical and production constraints, and incorporate them into UX solutions Proactive and self-driven, with the ability to work ind