Werkstudent User Interface Design (UX/UI) (m/w/d)

📍 Job Overview

Job Title: Werkstudent User Interface Design (UX/UI) (m/w/d)

Company: REWE Group

Location: Köln, North Rhine-Westphalia, Germany

Job Type: Part-time, Temporary

Category: UX/UI Design, Digital Product Design, Retail Technology

Date Posted: May 6, 2026

Experience Level: Entry-level (0-2 years)

Remote Status: Hybrid

🚀 Role Summary

• This Werkstudent (working student) role focuses on User Interface (UI) and User Experience (UX) design within the digital product development for REWE Group's innovative retail technology solutions.

• You will contribute to the enhancement of the REWE App and the development of cashierless supermarkets, directly impacting the shopping experience for millions of users.

• The position involves creating high-quality, accessible designs, interactive prototypes, and ensuring design consistency across all digital products.

• You will work closely with experienced designers within the "Home of IT" at REWE Digital, gaining practical experience in user-centered product development.

📝 Enhancement Note: While the title "Werkstudent" implies an entry-level, part-time, and temporary role, the responsibilities suggest a significant contribution to core product development, offering substantial learning and portfolio-building opportunities in a fast-paced retail tech environment. The hybrid nature indicates a mix of in-office collaboration and remote flexibility.

📈 Primary Responsibilities

• Design Creation & Quality Assurance: Independently create clean, error-free, and accessible user interface designs, ensuring adherence to design standards and brand consistency across all digital touchpoints.

• Prototyping & Concept Visualization: Support the design team by developing concepts, interactive prototypes, and visual designs to effectively communicate product ideas and user flows.

• User Testing & Feedback Integration: Assist in planning and executing UX tests, analyzing results, and leveraging insights to iterate and improve existing designs and concepts.

• Design System & Library Development: Contribute to the ongoing evolution of REWE Digital's design system and design library, maintaining form, consistency, and efficiency in design assets.

• Cross-functional Collaboration: Work closely with experienced designers and potentially developers to ensure seamless design implementation and a user-centered product lifecycle.

📝 Enhancement Note: The responsibilities emphasize hands-on design work, an iterative process involving user feedback, and a contribution to the foundational design system, all critical aspects of a productive UX/UI role within a dynamic tech team.

🎓 Skills & Qualifications

Education: Currently enrolled in at least your 3rd semester of a relevant degree program, such as Digital Design, User Experience Design, Digital Media, or a related field.

Experience: Ideally, possess a portfolio showcasing previous design work, projects, or case studies. Prior practical experience in interface or product design is a plus.

Required Skills:

• User-Centered Design Principles: A solid understanding of user-centered product development and its methodologies.

• UX/UI Methods: Foundational knowledge of UX/UI principles, theories, and workflows.

• Design Software Proficiency: Practical experience with at least one interface design program, with a strong preference for Figma (as used by REWE Digital). Familiarity with Sketch or Adobe XD is also valued.

• Design Quality & Consistency: Ability to create precise, error-free designs and maintain visual consistency.

• German Language Proficiency: Strong command of the German language in both written and spoken forms.

Preferred Skills:

• Interactive Prototyping: Experience creating functional prototypes to demonstrate user flows and interactions.

• Usability & Accessibility: Knowledge of usability best practices and accessibility standards (WCAG).

• Design System Contribution: Experience contributing to or maintaining design systems.

• Latest UI Trends: Awareness of current UI design trends and best practices.

📝 Enhancement Note: The emphasis on a portfolio and practical experience, even for a student role, highlights REWE Digital's desire for candidates who can demonstrate tangible design capabilities. Figma proficiency is a key differentiator.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Project Showcase: A curated collection of design projects demonstrating your process from concept to final design.

• Case Studies: Detailed case studies that outline the problem, your approach, the solutions implemented, and the impact of your designs.

• Design Process Documentation: Visual representation of your design thinking, including user flows, wireframes, and mockups.

• Tool Proficiency Examples: Clear examples showcasing your ability to use design tools like Figma, Sketch, or Adobe XD effectively.

Process Documentation:

• Workflow Design: Ability to articulate the steps involved in your design process, from understanding user needs to delivering final assets.

• Iterative Improvement: Evidence of how you've used feedback or testing results to refine and improve designs.

• System Consistency: Examples demonstrating your commitment to maintaining design consistency and leveraging design systems.

📝 Enhancement Note: For a Werkstudent role, the portfolio should highlight potential and a clear understanding of the design process, rather than extensive professional experience. Case studies demonstrating problem-solving and iterative design are highly valued.

💵 Compensation & Benefits

Salary Range: As this is a "Werkstudent" position (working student), compensation will be structured as an attractive hourly wage, competitive within the German student job market for UX/UI roles in Cologne. Specific figures are typically discussed during the interview process.

Benefits:

• Attractive Remuneration: Competitive pay for a student role.

• Subsidized Meals: Access to discounted food in the company canteen.

• Flexible Working Hours: No strict core hours, allowing for adaptation to study schedules.

• Mobile Working Options: Flexibility to work remotely, complementing your academic commitments.

• Employee Discounts: Significant discounts at REWE, PENNY, toom Baumarkt, and DERTOUR Group.

• Comprehensive Onboarding: Thorough integration into teams and workflows with dedicated onboarding programs.

• Responsibility & Learning: Opportunity to take on responsible tasks and learn from experienced colleagues.

• Potential for Final Theses: Possibility of collaborating on final academic theses based on departmental needs.

• Health & Sports: Access to a wide range of health and sports programs.

• Networking Opportunities: Participation in company-wide networks (e.g., LGBTIQ, Women's networks) for career and personal development.

• Talent Program: Entry into the "future steps" talent program with exclusive events, potentially leading to direct entry post-graduation.

Working Hours: Part-time, with flexible hours that can be adapted to your study schedule. The role is advertised with a standard of 40 hours per week, implying that your actual working hours as a student will be a portion of this, to be agreed upon.

📝 Enhancement Note: The benefits package is extensive for a student role, indicating REWE Group's commitment to employee well-being and development. The "future steps" program is a significant advantage for long-term career aspirations.

🎯 Team & Company Context

🏢 Company Culture

Industry: Retail Technology, E-commerce, Digital Transformation. REWE Group is a leading German retailer with a significant digital arm, REWE Digital, focused on innovating grocery shopping experiences.

Company Size: Large Enterprise (REWE Group is one of Germany's largest employers with tens of thousands of employees). REWE Digital likely comprises a substantial tech department.

Founded: REWE Group was founded in 1927. REWE Digital represents its modern, forward-thinking technological division.

Team Structure:

• You will be part of a dedicated UX/UI design team at REWE Digital, working alongside experienced designers.

• The team operates within the broader "Home of IT" structure, indicating a collaborative environment with other tech specialists.

Methodology:

• User-Centricity: A core principle, ensuring that user needs and experiences are at the forefront of all product development.

• Agile Development: Likely employed, with a focus on iterative design, testing, and rapid deployment.

• Data-Driven Design: Insights from UX tests and user data are critical for informing design decisions.

• Collaborative Design: Emphasis on teamwork, knowledge sharing, and cross-functional partnerships.

Company Website: https://www.rewe-digital.com/de

📝 Enhancement Note: REWE Digital positions itself as an innovative tech hub within a traditional retail giant. This hybrid environment offers stability with the excitement of cutting-edge digital projects. The "Home of IT" suggests a focus on a modern, tech-driven work culture.

📈 Career & Growth Analysis

Operations Career Level: This is an entry-level, part-time student position ("Werkstudent"). It's designed for individuals currently pursuing a degree and seeking practical, hands-on experience.

Reporting Structure: You will report to a senior member of the UX/UI design team, such as a Lead Designer or Design Manager, within the REWE Digital "Home of IT."

Operations Impact: As a UX/UI designer, your work directly influences the usability and appeal of digital products used by millions of REWE customers and potentially internal staff. Your contributions to the REWE App and cashierless supermarkets have a tangible impact on customer experience and operational efficiency.

Growth Opportunities:

• Skill Development: Deepen expertise in UX/UI methodologies, Figma, prototyping, and user research through practical application and mentorship.

• Portfolio Enhancement: Build a robust portfolio with real-world projects and case studies that can significantly aid future job applications.

• Industry Exposure: Gain valuable experience in the retail technology sector, a growing and dynamic field.

• Networking: Connect with experienced professionals and peers, fostering future career opportunities.

• Potential for Direct Entry: The "future steps" talent program and potential for thesis collaboration suggest a pathway for direct, full-time employment after graduation.

📝 Enhancement Note: This role is an excellent stepping stone for aspiring UX/UI designers. The combination of practical experience, mentorship, and potential future employment pathways makes it a compelling opportunity for students.

🌐 Work Environment

Office Type: Hybrid. While the role is based in Cologne, mobile working options are available, suggesting a blend of office-based collaboration and remote flexibility.

Office Location(s): The primary work location is 51063 Köln, Germany.

Workspace Context:

• Collaborative Hub: The "Home of IT" environment likely fosters a collaborative atmosphere where designers and tech professionals work together.

• Modern Tools: Access to industry-standard design tools like Figma is provided.

• Team Interaction: Opportunities to engage with experienced designers, learn from their expertise, and participate in team discussions and reviews.

• Dynamic Retail Tech: Exposure to the fast-paced world of digital retail innovation.

Work Schedule: Part-time, with flexible hours to accommodate academic studies. This allows for focused work on design tasks without compromising educational commitments.

📝 Enhancement Note: The hybrid model and flexible hours are designed to support students, balancing academic demands with meaningful professional experience. The Cologne office serves as the central hub for collaboration and team integration.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Likely a review of your application, focusing on your CV, motivation letter, and portfolio.

• Portfolio Presentation & Discussion: Expect to present your portfolio, discussing your design process, problem-solving skills, and contributions to specific projects. Be prepared to articulate your design choices and the rationale behind them.

• Technical/Skills Assessment: Potential for a small design challenge or a discussion about your proficiency with design tools like Figma.

• Team/Cultural Fit Interview: An opportunity to meet with potential team members and assess cultural alignment, initiative, and reliability.

Portfolio Review Tips:

• Curate Selectively: Showcase 3-5 of your strongest projects that best represent your skills and the requirements of this role.

• Tell a Story: For each project, clearly outline the problem statement, your role, the design process, challenges faced, solutions implemented, and the outcome or impact.

• Highlight Figma: If you have Figma experience, make sure it's prominently featured.

• Demonstrate Process: Show wireframes, user flows, and prototypes alongside final UI designs.

• Address Accessibility: If possible, include examples that demonstrate an understanding of accessibility principles.

• Keep it Concise: Aim for clarity and conciseness in your presentation.

Challenge Preparation:

• Understand the Context: Research REWE Group and REWE Digital's mission, products (especially the REWE App and cashierless concepts), and target audience.

• Design Thinking Practice: Be ready to discuss how you would approach a hypothetical design problem related to retail or app usability.

• Tool Familiarity: Ensure you are comfortable navigating and demonstrating features within Figma.

📝 Enhancement Note: The portfolio is crucial for this role. It's your primary tool to demonstrate practical skills and potential. Focus on showcasing a clear, user-centered design process and your ability to translate ideas into tangible designs using specified tools.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The primary tool for interface design, prototyping, and collaboration at REWE Digital. Advanced proficiency is highly valued.

• Sketch: Familiarity is a plus, as it's a common industry standard.

• Adobe XD: Another industry-standard tool, beneficial to have experience with.

Analytics & Reporting:

CRM & Automation:

• Not directly relevant to this UX/UI role, but an awareness of how design integrates with broader digital product ecosystems is helpful.

📝 Enhancement Note: Proficiency in Figma is the most critical technical skill for this position. Demonstrating hands-on experience with Figma in your portfolio and during the interview will significantly strengthen your application.

👥 Team Culture & Values

Operations Values:

• User Focus: A deep commitment to understanding and serving the needs of millions of customers.

• Quality & Detail: Striving for excellence in design, ensuring precision, and attention to detail in every output.

• Reliability & Initiative: Taking ownership of tasks, demonstrating dependability, and proactively seeking ways to contribute.

• Innovation: Embracing new ideas and technologies to drive the digital transformation of retail.

• Collaboration: Working effectively within a team and across departments to achieve common goals.

Collaboration Style:

• Team-Oriented: Emphasis on working together, sharing knowledge, and supporting team members.

• Constructive Feedback: An environment where feedback is welcomed and used for continuous improvement.

• Cross-functional Integration: Close collaboration with developers, product managers, and other stakeholders to ensure a cohesive product development process.

📝 Enhancement Note: REWE Digital values individuals who are not only skilled designers but also reliable, proactive team players who are passionate about creating excellent user experiences within a collaborative setting.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Study & Work: Effectively managing academic responsibilities alongside demanding project work.

• Large-Scale Impact: Designing for millions of users requires careful consideration of diverse needs and potential edge cases.

• Rapid Iteration: The fast-paced nature of digital product development may require quick turnarounds and adaptability.

• Maintaining Consistency: Ensuring design consistency across multiple platforms and features as the product evolves.

Learning & Development Opportunities:

• Mentorship: Guidance from experienced UX/UI designers within a large, established company.

• Practical Application: Hands-on experience with real-world design challenges in the retail tech sector.

• Tool Mastery: Deepening expertise in industry-leading design software, especially Figma.

• Industry Insights: Learning about the intricacies of digital product development in the fast-moving retail industry.

📝 Enhancement Note: This role offers a unique opportunity to tackle significant design challenges with the support of a professional team, fostering substantial personal and professional growth.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for designing a new feature for a mobile app, from initial concept to final handoff." (Focus on user research, ideation, prototyping, testing, and iteration).

• "How do you ensure your designs are accessible and user-friendly for a diverse audience?" (Highlight your understanding of accessibility guidelines and user-centered design principles).

Company & Culture Questions:

• "Why are you interested in working for REWE Digital and this specific UX/UI role?" (Connect your passion for design with REWE's mission in retail tech).

• "How do you handle constructive criticism on your designs?" (Emphasize openness to feedback and a collaborative approach).

Portfolio Presentation Strategy:

• Structure: Organize your presentation logically, starting with an overview of your skills and then diving into 2-3 key projects.

• Storytelling: Frame each project as a narrative – problem, solution, impact.

• Visuals: Use high-quality visuals of your designs, wireframes, and prototypes.

• Process Emphasis: Clearly articulate how you arrived at your design solutions.

• Tool Proficiency: Briefly mention the tools used, especially Figma, and how they facilitated your work.

• Q&A Readiness: Anticipate questions about your design choices and be ready to defend them with user-centric reasoning.

📝 Enhancement Note: Prepare to articulate your design process clearly and confidently, demonstrating not only your technical skills but also your ability to think critically and solve problems from a user's perspective.

📌 Application Steps

To apply for this Werkstudent UX/UI Design position:

• Submit your application through the provided link on the REWE Group careers portal.

• Tailor your CV and Cover Letter: Highlight your relevant coursework, any previous design experience, your current study progress, and specifically mention your interest in REWE Digital's work in retail technology.

• Prepare Your Portfolio: Ensure your portfolio is polished, easily accessible (e.g., via a link), and showcases projects that align with UX/UI design principles and ideally demonstrate Figma proficiency.

• Practice Your Presentation: Rehearse presenting your portfolio and discussing your design process, anticipating potential interview questions.

• Research REWE Digital: Understand their mission, products (REWE App, cashierless stores), and recent innovations to demonstrate genuine interest.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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