Senior UX/UI Designer - Digital Products

As a (Senior) UX/UI Designer - Digital Products, you design intuitive, effective and visually clear experiences across our digital ecosystem (web, app and internal applications). You apply a Lean UX mindset - working iteratively, testing assumptions early and focusing on measurable outcomes rather than heavy documentation.

You collaborate closely with Product, Engineering and Data/AI to define problems, test hypotheses and ship solutions grounded in data, user research and continuous feedback - for both human users and AI/synthetic users (e.g. automated agents or AI-powered systems).

Depending on your experience, you will either grow into or already take on a senior role with greater ownership, stakeholder alignment and mentoring responsibilities.

• Own and drive the end-to-end UX and UI design process for selected digital products and features (from discovery to delivery)
• Apply Lean UX principles:
• Work in small, iterative steps
• Use light-weight artefacts (sketches, prototypes)
• Validate assumptions quickly with users and data
• Collaborate with Product, Engineering, Data/AI and Business to:
• Understand user needs, pain points and business goals
• Define problem statements, hypotheses and success metrics
• Prioritise and plan design work within the product roadmap
• Design user journeys, flows and interactions across touchpoints (web, app, tools) to ensure a coherent, frictionless experience
• Create wireframes, interaction concepts and low- to high-fidelity prototypes; deliver final UI aligned with our brand, design system and accessibility standards
• Use AI-assisted tools (e.g. for ideation, variants, UX copy, localisation, research synthesis) to work efficiently - and critically evaluate and refine their output
• Design and refine AI- and data-enabled features (e.g. search, recommendations, personalisation, assistants or smart tooling) with a strong focus on transparency, user control and trust
• Work data-driven:
• Analyse quantitative data (e.g. funnels, experiments, dashboards)
• Plan and run user tests and other qualitative research formats
• Systematically integrate user feedback and insights into product decisions and iterations
• Design for both human users and synthetic users (e.g. AI agents, scripts, systems interacting with your interfaces), ensuring robust, well-defined interaction contracts
• Contribute to and evolve our design system, patterns and guidelines, ensuring consistency across platforms and teams
• As a senior (depending on level):
• Facilitate workshops, design reviews and alignment sessions
• Provide feedback and coaching to other designers
• Help improve UX practices, processes and ways of working across teams

• Several years of experience in UX/UI design for digital products (web/app/tools) in a fast-paced, agile environment
• Bachelor’s or Master’s degree in Design, Human-Computer Interaction or a related field, or equivalent practical experience
• Strong portfolio demonstrating:
• End-to-end product design (from problem framing to shipped solutions)
• Complex flows and interaction/service design, not just visual polish
• Clear visual design skills (layout, hierarchy, typography, visual clarity)
• Measurable impact on user and/or business outcomes where possible
• Proven experience with Lean UX:
• Hypothesis-driven, iterative working style
• Close collaboration with Product and Engineering
• Focus on outcomes and learning over deliverables
• Proficiency with modern design and prototyping tools (e.g. Figma, Sketch, Adobe CC, Axure, Framer, Principle or similar)
• Strong data mindset: confident in interpreting quantitative data, planning and evaluating user tests, and turning insights and feedback into concrete design decisions
• Solid AI literacy: understanding of AI/ML in products (e.g. recommendations, generative AI, assistants) and their UX implications (trust, transparency, control)
• Hands-on experience using AI tools in your design workflow and the judgment to know when human expertise must lead
• Interest or experience in designing for non-human/synthetic users (e.g. AI agents, scripts, APIs) is a plus
• Strong communication skills in English; German is a plus
• Enjoy working in an international, multidisciplinary environment and contributing to a strong, collaborative team culture
• For the senior level: proven end-to-end ownership, ability to influence beyond your immediate product area, and experience mentoring other designers, * Young environment, where not everything is written in stone, and where you are expected to contribute and co-create the culture of the Tech Hub and international collaboration model.

• You’ll have a 10% discount on the entire MediaMarkt website, so you can treat yourself at a lower price whenever you want!
• On top of your compensation package, you can request Flexible Pay “MediaFlex program” (a.e. Ticket Restaurant, Private Health Insurance with Adeslas…)
• Flexible working time and possibility to combine home office / presential working. Intensive workday every Friday and during summer.
• The possibility to choose between 2 offices: The first one is the MediaMarkt Iberia HQ with a very attractive menu at a price. You’ll eat for less than €4! And the second office is located at Pier01, in Barceloneta, right in the center of Barcelona. Free coffee and free fruit once a week.
• There is a training budget so you can continue developing the skills you need most to keep growing professionally and personally!
• We offer language classes: English, Spanish, and German.
• On your birthday, you won’t work! It’s a day for you to enjoy without thinking about work.

• You’ll be working with the most cutting-edge technological stack of the moment.

• Training plan
• Flexible working schedule, home office policy
• Gym
• Product discounts
• Wellness and healthy plans
• Media Flex, flexible retribution