Senior Product Designer - UI Focus (f/m/x)

📍 Job Overview

Job Title: Senior Product Designer - UI Focus (f/m/x)

Company: exmox

Location: Hamburg, Germany

Job Type: Permanent employee

Category: Product Design / UI/UX Design

Date Posted: July 31, 2026

Experience Level: 5-10 years

Remote Status: Hybrid

🚀 Role Summary

• This role focuses on the end-to-end design of features for a high-growth, mobile-first B2C product, with a strong emphasis on user interface (UI) craft and visual design.

• You will be instrumental in shaping the user experience of a product used by millions, driving engagement and revenue through data-informed design decisions.

• Responsibilities include creating polished, habit-forming interfaces, visual assets, and contributing to the evolution of the company's design system.

• Collaboration with UX research, data teams, and engineering is key to iterating on designs and ensuring high-quality implementation.

📝 Enhancement Note: The job title "Senior Product Designer - UI Focus" indicates a specialized role within product design, prioritizing visual design and user interface execution over broader UX strategy. The company's focus on "rewarded user acquisition" in mobile gaming suggests a highly performance-driven environment where design directly impacts user behavior and key performance indicators (KPIs).

📈 Primary Responsibilities

• Own the complete design lifecycle for new features, from initial concept and ideation through to final handoff to engineering.

• Develop highly polished and visually engaging user interfaces for the company's B2C mobile application, ensuring a compelling user experience.

• Create a range of visual assets, including illustrations, iconography, and other graphical elements, to enhance the product's aesthetic and usability.

• Facilitate seamless developer handoff by providing production-ready assets, detailed specifications, interactive prototypes, and comprehensive documentation.

• Contribute to, maintain, and evolve the company's design system, ensuring consistency and scalability across the product portfolio.

• Conduct rigorous design reviews to guarantee that implemented features align with the intended design vision and quality standards.

• Collaborate closely with UX researchers and data analysts to gather insights, evaluate design effectiveness, and drive iterative improvements based on user behavior and performance metrics.

• Actively seek and incorporate feedback from stakeholders, users, and team members to continuously refine and enhance existing and new designs.

📝 Enhancement Note: The emphasis on "feature ownership" and "design quality" suggests a role with significant autonomy and accountability. The requirement to "work at the intersection of user behavior, data, and business goals" highlights the strategic importance of design in driving user acquisition and revenue within the mobile gaming context.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong educational foundation in Design, Human-Computer Interaction, or a related field is often beneficial. Candidates are expected to demonstrate equivalent practical knowledge through their portfolio and experience.

Experience: 5+ years of professional experience in product teams as a UI, UI/UX, or Product Designer, with a proven track record of designing consumer-facing interfaces.

Required Skills:

• A strong portfolio showcasing outstanding mobile UI craft and visual design execution.

• Demonstrated experience designing habit-forming, engaging, consumer-facing interfaces.

• Proficiency in Figma for design and prototyping.

• Expertise in motion design, animation, and transitions to craft dynamic and interactive interfaces.

• Proven ability to create high-quality visual assets, including illustrations and iconography.

• Experience in designing, shipping, and maintaining design systems.

• Familiarity with multi-brand products and theming systems is highly advantageous.

• Experience in defining, designing, and documenting brand identities.

• Experience in copywriting, including defining tone, voice, and messaging.

• Strong knowledge of accessibility and usability principles.

• Understanding of front-end technologies and their implementation constraints.

• Fluency in English; German language skills are a plus. Preferred Skills:

• Experience in marketing, gaming, or other B2C-heavy industries.

• Experience with white-label product design.

📝 Enhancement Note: The "5+ years of experience" combined with "Senior Product Designer" indicates a need for seasoned professionals capable of independent work and potentially mentoring junior designers. The explicit mention of "habit-forming" interfaces points towards a deep understanding of user psychology and engagement loops common in mobile gaming and consumer tech.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase a minimum of 3-5 robust case studies that highlight your UI design process, visual design skills, and ability to create engaging mobile interfaces.

• Clearly articulate your role and contributions within each project, especially in team-based environments.

• Demonstrate proficiency in Figma, including complex prototyping, component creation, and design system integration.

• Include examples of visual asset creation (icons, illustrations) and how they enhance the user experience.

• Showcase your experience with motion design and transitions, providing examples or interactive prototypes where possible.

• Highlight projects that involved working with or contributing to a design system.

• Include examples of how your designs have addressed accessibility and usability standards.

• If applicable, present work related to multi-brand products or theming. Process Documentation:

• Within case studies, detail your approach to user research collaboration and how data insights informed your design decisions.

• Explain your process for developer handoff, including the types of documentation and specifications provided.

• Illustrate your methods for creating and maintaining design systems, including component libraries and style guides.

• Describe how you have incorporated feedback and iterated on designs based on performance metrics and user testing.

📝 Enhancement Note: The emphasis on a "portfolio showcasing outstanding mobile UI craft and visual design" and specific requirements like "motion & interaction design" and "visual asset creation" mean candidates must present visually compelling work that goes beyond basic wireframing. The "design system" requirement suggests the need for candidates who can think systematically and contribute to scalable design solutions.

💵 Compensation & Benefits

Salary Range: For a Senior Product Designer in Hamburg, Germany, with 5-10 years of experience, the estimated annual salary range is typically between €65,000 and €85,000. This estimate is based on current market data for similar roles in major German tech hubs, considering the company's industry (mobile gaming/tech) and the specified experience level.

Benefits:

• Transport subsidy: Financial assistance for commuting to the office.

• Learning budget: Allocated funds for professional development, courses, and conferences.

• Wellness and gym: Support for physical health and well-being.

• Workation: Opportunities for remote work from different locations.

• Bi-weekly team lunches: Regular team-building and social events.

• Flexible hybrid model: Combination of remote work (Mondays & Fridays) and in-office work (Tuesdays, Wednesdays, Thursdays).

• Potential for stock options or performance-based bonuses, common in high-growth tech companies.

Working Hours: A standard full-time workweek of approximately 40 hours, with the flexibility offered by the hybrid model. The company culture emphasizes speed and efficiency, suggesting a focus on output rather than strict adherence to hours.

📝 Enhancement Note: Salary estimates are based on industry benchmarks for Senior Product Designers in major German cities like Hamburg. The provided benefits are typical for tech companies in Germany, with the "Workation" and "Learning budget" being particularly attractive for design professionals. The hybrid model details are specific and should be factored into the candidate's decision.

🎯 Team & Company Context

🏢 Company Culture

Industry: Mobile Gaming / User Acquisition Technology. exmox operates within the highly competitive and rapidly evolving mobile gaming sector, focusing on user acquisition platforms. This industry is characterized by a strong emphasis on data analytics, performance marketing, and rapid iteration to capture market share and user attention.

Company Size: exmox is described as a "European tech challenger" and a company "built for growth," implying a dynamic, fast-paced environment. While the exact number isn't provided, the context suggests a growing mid-sized company, likely with multiple teams and a developing organizational structure.

Founded: The founding date is not specified, but the company's focus on "hyper-growth" and "spearheading one of the largest innovations in the mobile gaming industry" indicates a relatively young, ambitious, and scaling organization.

Team Structure:

• The Product Design team is described as "growing in maturity" and includes Product Designers, UI Designers, and UX Researchers, suggesting a structured design department.

• Collaboration is expected with UX research and data teams, indicating a cross-functional approach to product development.

• The company culture emphasizes "speed is the feature" and "focus on the essential," pointing towards agile methodologies and efficient workflows. Methodology:

• Data-driven decision-making is central, with designs being tested and iterated upon based on real user insights and performance metrics.

• AI is integrated into the workflow to enhance efficiency and reduce repetitive tasks.

• A strong emphasis on "action creates information" and "small wins compound" suggests an iterative, experimental approach to product development.

Company Website: exmox.com

📝 Enhancement Note: The company's positioning as a "tech challenger" and its focus on "hyper-growth" and "innovations in mobile gaming" suggest an environment that values ambition, rapid execution, and continuous learning. The integration of AI into their workflow is a modern approach that designers should be prepared to leverage.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Product Designer role, indicating a position of significant responsibility and expertise. Senior designers are expected to lead feature design, contribute to the design system, mentor junior colleagues (implicitly), and influence product strategy through their design contributions. The role is positioned at a point where individual contribution is high, with potential for future leadership.

Reporting Structure: While not explicitly stated, a Senior Product Designer typically reports to a Lead Product Designer, Head of Design, or a Product Management lead. The role involves close collaboration with Product Managers, Engineers, and UX Researchers.

Operations Impact: The design work directly impacts user acquisition, engagement, and revenue KPIs for a product used by over 25 million users. Designers are expected to understand and contribute to business goals through their UI/UX creations, making their impact significant and measurable.

Growth Opportunities:

• Design Leadership: Potential to grow into a Lead Product Designer or Design Manager role, overseeing a team and shaping design strategy.

• Specialization: Deepen expertise in specific areas like mobile UI, design systems, interaction design, or even transition into product management with a strong design foundation.

• Skill Development: Continuous learning opportunities through the allocated learning budget, exposure to cutting-edge AI tools, and working on a large-scale, high-performance product.

• Cross-functional Advancement: Potential to move into product management roles given the close collaboration with product teams and focus on business outcomes.

📝 Enhancement Note: The "growing design maturity" at exmox suggests that this Senior role is not just about execution but also about contributing to the evolution of design processes and standards within the company, offering a chance to shape the team's future.

🌐 Work Environment

Office Type: The company offers a hybrid work model, with specific days designated for in-office collaboration and the remaining days for remote work. This suggests a modern, flexible office environment designed to accommodate both focused individual work and collaborative team activities.

Office Location(s): The primary office is located at Rödingsmarkt 39, Hamburg, Germany (20459). This location is in a central area of Hamburg, likely offering good accessibility via public transportation.

Workspace Context:

• Collaboration: Tuesdays, Wednesdays, and Thursdays are designated office days, encouraging face-to-face interaction, brainstorming sessions, and cross-functional meetings.

• Tools & Technology: While specific tools are detailed in another section, the environment likely supports modern design software and collaboration platforms. The company's embrace of AI suggests access to relevant tools.

• Team Interaction: The hybrid model allows for both focused remote work and vibrant in-office team dynamics, including bi-weekly team lunches.

Work Schedule: The standard work schedule is around 40 hours per week. The hybrid model offers flexibility, allowing employees to work from home on Mondays and Fridays, balancing personal needs with team collaboration requirements.

📝 Enhancement Note: The hybrid model with specific office days (Tue-Thu) indicates a structured approach to balancing flexibility with in-person collaboration, which is crucial for design teams. This structure allows for dedicated design sprints or review sessions in the office.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your application, focusing on your resume and portfolio to assess relevant experience and UI craft.

• Portfolio Presentation & Design Exercise: Typically involves a presentation of your portfolio, highlighting key case studies, followed by a design challenge. This challenge might simulate a real-world problem the company faces, focusing on UI design, problem-solving, and your design process.

• Team/Hiring Manager Interview: Discussion about your experience, approach to design, collaboration style, and cultural fit with the team and company values. Expect questions about how you handle feedback, prioritize tasks, and drive initiatives.

• Final Interview: May involve senior leadership or a broader cross-functional team to assess strategic thinking and overall fit.

Portfolio Review Tips:

• Curate for UI Excellence: Ensure your portfolio prominently features your strongest mobile UI design work, emphasizing visual polish, interaction design, and asset creation.

• Structure Case Studies: For each case study, clearly outline the problem, your role and process, the solutions you designed, and the impact (quantified if possible). Use visuals generously.

• Demonstrate Figma Proficiency: Be prepared to walk through your Figma files, showcasing your organization, component usage, prototyping capabilities, and design system contributions.

• Highlight Motion & Assets: Specifically call out and showcase examples of your motion design work and custom visual assets (icons, illustrations).

• Emphasize Data-Informed Design: Explain how you used data, user research, or A/B testing results to inform and iterate on your designs.

• Tailor to exmox: Research exmox's products and brand. If possible, subtly tailor your presentation to align with their industry and focus on user acquisition and engagement.

Challenge Preparation:

• Understand the Context: Be ready to tackle a design challenge related to mobile B2C products, user engagement, or user acquisition.

• Think Aloud: During the challenge, articulate your thought process clearly. Explain your assumptions, design decisions, and trade-offs.

• Focus on UI Craft: Given the "UI Focus" of the role, pay close attention to visual details, micro-interactions, and overall aesthetic appeal in your challenge solution.

• Time Management: Practice working within time constraints, prioritizing key aspects of the design problem.

📝 Enhancement Note: The "Senior Product Designer - UI Focus" title suggests that the portfolio review will heavily scrutinize the visual quality and execution of UI elements. Candidates should be prepared to articulate not just what they designed, but how and why, with a strong emphasis on the visual and interactive details.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design tool for UI design, wireframing, prototyping, and collaboration. Proficiency is explicitly required.

• Prototyping Tools: Likely integrated within Figma, but potentially other tools for more advanced or specific interactive prototypes.

• Design System Management Tools: Systems for organizing, documenting, and distributing design components and guidelines.

Analytics & Reporting:

• Data Analysis Platforms: While not specified, expect to work with data from analytics platforms (e.g., Amplitude, Mixpanel, Firebase Analytics) to understand user behavior and design performance.

• A/B Testing Tools: Tools used to test design variations and measure their impact on KPIs.

CRM & Automation:

• Project Management Tools: Tools like Jira, Asana, or Trello for managing design tasks and workflows.

• Collaboration Tools: Slack or similar for team communication.

• AI Tools: The company actively uses AI for efficiency, so familiarity with or openness to using AI-powered design assistants or tools is beneficial.

📝 Enhancement Note: The explicit mention of Figma as a required skill is critical. The company's emphasis on data-driven design implies that designers will need to be comfortable interpreting analytics and working with data teams, even if they aren't directly managing the analytics tools themselves.

👥 Team Culture & Values

Operations Values:

• Speed is the feature: Emphasizes rapid execution, iteration, and a bias for action. Designs should be delivered efficiently, and the team moves fast to gather information and learn.

• Focus on the essential: Prioritization and efficiency are key. The team avoids unnecessary complexity and focuses on tasks that directly contribute to core objectives. Direct and concise communication is valued.

• See it. Own it. Solve it.: Fosters a culture of proactivity and accountability. Employees are encouraged to take initiative, identify problems, and contribute to solutions regardless of formal job titles.

• Respect others. Trust multiplies.: Promotes a collaborative and supportive environment where disagreements are handled constructively, and trust is built through consistent actions and accountability.

• Performance-driven: The culture is geared towards achieving results, especially in user acquisition and revenue growth within the competitive mobile gaming market.

Collaboration Style:

• Cross-functional Integration: Designers work closely with Product Managers, Engineers, UX Researchers, and Data Analysts. Collaboration is essential for ideation, iteration, and ensuring successful implementation.

• Data-Informed Discussions: Design decisions and feedback are heavily influenced by data and performance metrics, leading to objective and evidence-based discussions.

• Feedback Loop: A culture of giving and receiving constructive feedback is vital for continuous improvement and iteration on designs. The team embraces multiple refinement cycles.

• Agile & Iterative: The company's philosophy suggests an agile approach, where work is broken down into manageable cycles, with quick feedback loops and rapid iteration.

📝 Enhancement Note: The company values are strongly aligned with a fast-paced, results-oriented startup culture. Designers must be comfortable with ambiguity, quick decision-making, and taking ownership in a high-performance environment. The emphasis on "speed" and "ownership" means designers will likely have significant autonomy but also face high expectations for output and impact.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Speed and Quality: The "Speed is the feature" mantra can create pressure to deliver quickly, requiring designers to find efficient ways to maintain high UI craft and user experience quality.

• Designing for Habit Formation: Creating "habit-forming" interfaces for a B2C mobile product requires a deep understanding of user psychology, engagement loops, and behavioral design principles.

• Evolving Design System: Contributing to and maintaining a design system in a hyper-growth environment means adapting to evolving product needs and ensuring scalability.

• Data Interpretation: Effectively translating complex user data and performance metrics into actionable design improvements requires strong analytical skills and collaboration with data teams.

• Multi-Brand Environment: Designing for multiple brands or a white-label product might involve managing different visual identities and theming systems, adding complexity.

Learning & Development Opportunities:

• Advanced UI/UX Skills: Opportunities to refine skills in mobile UI design, interaction design, motion graphics, and visual asset creation.

• Design System Expertise: Deepen knowledge and experience in building, scaling, and managing design systems.

• Data-Driven Design Acumen: Develop a stronger understanding of A/B testing, user analytics, and performance metrics to inform design decisions.

• Product Strategy Influence: Grow in ability to influence product strategy by demonstrating the impact of design on key business objectives.

• Mentorship: Potential to mentor junior designers as the team grows and design maturity increases.

📝 Enhancement Note: The challenges presented are typical for a senior role in a fast-growing tech company. The opportunities highlight the potential for professional growth, particularly in areas directly relevant to modern product design and its strategic impact on business outcomes.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to balance rapid iteration with maintaining design quality. How did you approach it?" (Focus on your process for prioritizing, delivering quickly without sacrificing core design principles.)

• "How would you approach designing a new feature for a mobile game to increase user engagement and retention, given limited initial data?" (Demonstrate your ideation process, how you'd leverage known engagement patterns, and plan for data collection/iteration.)

• "Walk me through how you've contributed to or built a design system. What were the challenges, and how did you ensure its adoption and effectiveness?" (Highlight your understanding of system design, scalability, and stakeholder buy-in.) Company & Culture Questions:

• "How do you align your design work with business goals and KPIs, especially in a performance-driven environment like mobile gaming?" (Connect your design decisions to user acquisition, retention, and revenue metrics.)

• "Describe your experience working in a hybrid or remote team. How do you ensure effective collaboration and communication?" (Highlight your ability to work autonomously and collaboratively, using digital tools effectively.)

• "What does 'See it. Own it. Solve it.' mean to you in a design context?" (Showcase your proactiveness, accountability, and willingness to go beyond your immediate responsibilities.) Portfolio Presentation Strategy:

• Storytelling is Key: Frame your case studies as narratives. Start with the problem, detail your journey (research, ideation, design), showcase your solutions visually, and conclude with the impact.

• Show, Don't Just Tell: Use high-fidelity mockups, interactive prototypes, and animated examples to demonstrate your UI craft, motion design skills, and visual asset creation.

• Quantify Impact: Whenever possible, include metrics that demonstrate the success of your designs (e.g., increased conversion rates, higher engagement, improved user satisfaction).

• Highlight Collaboration: Briefly mention how you collaborated with PMs, engineers, and researchers, showing your ability to work within a team.

• Prepare for Deep Dives: Be ready to answer specific questions about your design decisions, technical constraints, and the rationale behind your visual choices.

📝 Enhancement Note: Expect interviewers to probe deeply into your portfolio, looking for evidence of strong UI execution, a data-informed mindset, and the ability to thrive in a fast-paced, ownership-driven culture. Prepare to discuss how your designs directly contribute to business outcomes.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your application through the provided link on the exmox careers page.

• Tailor your Resume: Highlight your 5+ years of experience in UI/Product Design, specifically mentioning mobile B2C products, Figma proficiency, and any experience in gaming or marketing. Quantify achievements where possible.

• Curate Your Portfolio: Ensure your portfolio prominently features mobile UI design, visual assets, motion design examples, and at least 2-3 detailed case studies showcasing your process and impact. Prioritize visual quality and interactive elements.

• Prepare Your Presentation: Practice presenting your portfolio, focusing on clarity, storytelling, and demonstrating your UI craft and problem-solving skills. Be ready to discuss your design system experience and data-informed approach.

• Research exmox: Understand their products, target audience, and company values. Be prepared to articulate why you are a good fit for their high-growth, performance-driven culture.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and industry-standard assumptions. All details should be verified directly with exmox during the application and interview process.