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

📍 Job Overview

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

Company: exmox

Location: Hamburg, Germany

Job Type: Permanent employee

Category: Product Design / UI/UX Design

Date Posted: 2026-07-31

Experience Level: 5-10 years

Remote Status: Hybrid

🚀 Role Summary

• Design and own user-facing features for a high-growth B2C mobile product, impacting millions of global users in the competitive mobile gaming industry.

• Develop visually engaging, habit-forming interfaces with a strong emphasis on UI craft, motion design, and a data-driven approach to user behavior and business goals.

• Contribute significantly to the evolution and maintenance of a comprehensive design system, ensuring consistency and scalability across multiple brands.

• Collaborate closely with cross-functional teams, including UX research and data analysts, to iterate and optimize designs based on user feedback and performance metrics.

• Play a pivotal role in shaping the maturity and practices of the product design team within a dynamic, ambitious, and performance-oriented company.

📝 Enhancement Note: This role is positioned as a Senior Product Designer with a specific UI focus, indicating a need for strong visual design skills alongside product thinking. The emphasis on "habit-forming," "performance," and "revenue" suggests a design role deeply integrated with business objectives and data analysis, common in growth-focused B2C environments like mobile gaming. The company's description as a "tech challenger" and its "path of hyper-growth" imply a fast-paced, results-oriented culture where designers are expected to take significant ownership and drive impact.

📈 Primary Responsibilities

• Feature Ownership & Design: Take full ownership of new features from conceptualization through to final handoff, ensuring seamless integration with existing product flows and design system components.

• UI Craft & Visual Design: Design highly polished, visually appealing, and intuitive user interfaces for a mobile-first B2C application, focusing on exceptional UI aesthetics and user engagement.

• Visual Asset Creation: Produce high-quality illustrations, iconography, and other graphical assets that enhance the user experience and align with brand identities.

• Design System Development & Maintenance: Actively contribute to the creation, refinement, and ongoing maintenance of the company's design system, ensuring its integrity and usability for the entire product team.

• Developer Handoff & Collaboration: Prepare and deliver detailed design specifications, prototypes, production-ready assets, and comprehensive documentation to engineering teams for accurate implementation.

• Design Quality Assurance: Conduct rigorous design reviews to ensure that implemented features precisely match the intended design specifications and maintain a high standard of quality.

• Cross-functional Partnership: Collaborate effectively with UX researchers, data analysts, product managers, and engineers to gather insights, validate design decisions, and drive continuous product improvement.

• User-Centric Iteration: Utilize user feedback, A/B testing results, and performance data to iterate on designs, optimize user flows, and enhance overall product performance and user satisfaction.

• Brand Identity & Theming: Work with multi-brand products and potentially white-label solutions, requiring an understanding of theming systems and brand identity application across different contexts.

• Copywriting & Tone of Voice: Contribute to defining and refining the product's tone of voice, messaging, and in-app copy to ensure clarity, engagement, and brand consistency.

📝 Enhancement Note: The responsibilities highlight a blend of strategic design thinking and execution. The emphasis on "feature ownership," "design system development," and "collaboration with data teams" suggests a senior-level role where the designer is expected to not only create interfaces but also contribute to the product's strategic direction and operational efficiency. The mention of "multi-brand products" and "theming systems" points to a complex design environment requiring adaptability and a strong understanding of scalable design solutions.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Graphic Design, Interaction Design, Human-Computer Interaction (HCI), or a related field is typically expected for a Senior Product Designer role. Equivalent practical experience will also be considered.

Experience:

• Minimum of 5 years of professional experience working in product teams as a UI Designer, UI/UX Designer, or Product Designer.

• Proven track record of designing habit-forming, engaging, consumer-facing interfaces, preferably in mobile-first environments.

• Experience in marketing, gaming, or other B2C-heavy industries is considered a significant plus. Required Skills:

• Portfolio: A strong portfolio showcasing exceptional mobile UI craft, visual design skills, and a demonstrable ability to create polished, engaging interfaces.

• Design Tools: Advanced proficiency in Figma for UI design, prototyping, and collaboration.

• Motion & Interaction Design: Expertise in designing dynamic interfaces through motion, animation, and transitions to enhance user engagement and provide intuitive feedback.

• Visual Asset Creation: Strong skills in creating high-quality illustrations, iconography, and other graphical assets that align with product aesthetics and brand guidelines.

• Design Systems: Proven experience in designing, building, shipping, and maintaining robust design systems that promote consistency and efficiency.

• Accessibility & Usability: Deep understanding and practical application of accessibility (WCAG) and usability principles to create inclusive and user-friendly experiences.

• Frontend Awareness: A solid understanding of front-end technologies (e.g., HTML, CSS, JavaScript) and their implementation constraints to ensure designs are technically feasible and optimized.

• English Fluency: Professional fluency in English (written and spoken).

Preferred Skills:

• German Language: Proficiency in German is a plus.

• Multi-brand/White-label Design: Experience working with multi-brand products or white-label solutions, including proficiency in theming systems.

• Brand Identity Development: Experience in defining, designing, and documenting brand identities.

• Copywriting: Experience in defining and crafting tone, voice, and messaging for user interfaces.

• Data-Driven Design: Familiarity with A/B testing, user analytics, and using data to inform design decisions.

• UX Research Collaboration: Experience working closely with UX researchers to plan and incorporate user research findings into the design process.

📝 Enhancement Note: The "Hard Skills" section is extensive and highlights a very specific profile. The emphasis on Figma, motion design, and design systems is crucial. The requirement for "multi-brand products and theming systems" is a key differentiator, suggesting the need for a designer who can manage diverse visual identities and potentially build adaptable UI components. Frontend awareness is also a strong indicator of the desired collaboration with engineering.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Visual Design Excellence: Showcase a strong collection of visually polished and aesthetically compelling UI designs, with a particular emphasis on mobile applications.

• Mobile-First Case Studies: Include at least 2-3 detailed case studies focusing on mobile product design, demonstrating your end-to-end design process from problem definition to solution.

• UI Craftsmanship: Highlight specific examples of your UI design skills, including attention to detail in layout, typography, color, iconography, and micro-interactions.

• Motion & Animation Examples: If possible, include examples or clear descriptions of motion design and animations you've implemented to enhance user experience and provide feedback.

• Design System Contribution: Demonstrate experience with design systems, either by showcasing contributions to an existing system or by presenting a personal system you've developed.

• Problem-Solution Framing: Clearly articulate the user problem or business challenge addressed in each case study, and how your design solutions effectively solved it.

• Impact & Metrics: Where possible, quantify the impact of your designs using relevant metrics (e.g., conversion rate improvements, engagement increases, user satisfaction scores).

Process Documentation:

• End-to-End Design Process: Clearly outline your design process, from user research and ideation to wireframing, prototyping, UI design, testing, and developer handoff.

• Design System Workflow: Detail your approach to working with and contributing to design systems, including component creation, documentation, and governance.

• Collaboration & Handoff: Illustrate how you collaborate with cross-functional teams (product managers, engineers, researchers) and your process for effective developer handoff.

• Iteration & Feedback Integration: Show how you incorporate user feedback, data insights, and A/B testing results into iterative design improvements.

📝 Enhancement Note: For a Senior Product Designer role with a UI focus, the portfolio is paramount. The emphasis should be on demonstrating not just aesthetic skill but also a structured design process, experience with complex systems (like design systems and multi-brand products), and an understanding of how design impacts business KPIs. The inclusion of motion design and copywriting is also important for this specific role.

💵 Compensation & Benefits

Salary Range: For a Senior Product Designer with 5-10 years of experience in Hamburg, Germany, the estimated salary range is approximately €65,000 to €90,000 per year. This range can vary based on the candidate's specific experience, portfolio, and negotiation skills.

Benefits:

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

• Learning Budget: A dedicated budget for professional development, training, conferences, and skill enhancement.

• Wellness and Gym Membership: Support for physical and mental well-being, including gym access or other wellness programs.

• Workation Opportunities: Possibility to work from different locations, offering flexibility and travel opportunities.

• Bi-weekly Team Lunches: Regular social gatherings to foster team cohesion and collaboration.

• Hybrid Work Model: Flexibility to work from home on Mondays and Fridays, with in-office presence on Tuesdays, Wednesdays, and Thursdays.

• Stock Options/Equity: While not explicitly mentioned, companies in hyper-growth phases often offer equity or stock options as part of their compensation package.

Working Hours: Standard full-time working hours are approximately 40 hours per week. The hybrid model provides flexibility in managing work-life balance, with core in-office days for collaboration.

📝 Enhancement Note: The salary estimate is based on market data for senior-level design roles in Hamburg, Germany, considering the company's industry (tech/gaming) and the role's seniority. The listed benefits are directly from the job description, with an inference made about potential stock options, which is common for high-growth startups. The hybrid work arrangement is clearly defined.

🎯 Team & Company Context

🏢 Company Culture

Industry: Mobile Gaming / User Acquisition Technology. exmox operates within the highly competitive and rapidly evolving mobile gaming industry, focusing on user acquisition and consumer product development. This sector demands continuous innovation, data-driven decision-making, and a strong understanding of user behavior to thrive.

Company Size: The exact size isn't specified, but the description of "hyper-growth" and building a "tech challenger" suggests a company that is scaling rapidly, likely from a mid-size to a larger startup or scale-up phase. This implies a dynamic environment with opportunities for significant impact.

Founded: The founding date is not provided, but the company's ambition to build "the next European tech challenger" and its focus on innovation indicate a relatively modern and forward-thinking organization.

Team Structure:

• Product Design Team: You will join a dedicated product design team that includes Product Designers, UI Designers, and UX Researchers. This structure suggests a collaborative environment where design expertise is specialized but integrated.

• Cross-functional Collaboration: The role requires close collaboration with Product Managers, UX Researchers, Data Analysts, and Engineering teams, emphasizing a holistic approach to product development.

• Reporting Structure: While not explicitly detailed, a Senior Product Designer typically reports to a Design Lead, Head of Product Design, or a Product Manager, depending on the organizational structure.

Methodology:

• Data-Driven Iteration: exmox emphasizes a strong data-driven culture. Design decisions are informed by user behavior, A/B testing results, and performance metrics, leading to continuous iteration and optimization.

• Agile Development: The "hyper-growth" and "experimentation" context implies an agile development methodology, where teams work in iterative cycles to deliver value quickly and adapt to market changes.

• Performance & Impact Focus: The company culture is centered around achieving ambitious goals, driving performance, and delivering tangible impact, with a clear mission to "compete at the highest level and win."

Company Website: exmox.com

📝 Enhancement Note: The company culture is described as ambitious, performance-oriented, and focused on growth. The industry context of mobile gaming and user acquisition is critical, as it implies a fast-paced, competitive, and experimentation-heavy environment. The emphasis on data and impact suggests that designers need to be comfortable with metrics and ROI.

📈 Career & Growth Analysis

Operations Career Level: This role is designated as "Senior Product Designer," indicating a mid-to-senior level position. It requires a strong foundation in UI design and product thinking, with the expectation of independent feature ownership, contributions to design systems, and mentorship potential.

Reporting Structure: The Senior Product Designer will likely report to a Design Lead or Head of Product Design, working within a specialized product design team. They will collaborate extensively with Product Managers, Engineers, and UX Researchers, forming cross-functional squads or feature teams.

Operations Impact: The impact of this role is directly tied to user acquisition, engagement, and revenue for the company's B2C mobile products. Designers are expected to create "habit-forming" interfaces that drive key performance indicators (KPIs) such as user retention, in-app purchases, and overall user lifetime value. The data-driven culture ensures that design decisions have measurable business outcomes.

Growth Opportunities:

• Design Maturity Leadership: Actively contribute to and help shape the evolving design maturity at exmox, influencing design processes, standards, and team culture.

• Skill Specialization: Deepen expertise in areas like advanced motion design, complex design system architecture, or specialized UI patterns for habit-forming products.

• Cross-functional Leadership: Potentially lead design initiatives within cross-functional teams, influencing product strategy and roadmap through design expertise.

• Mentorship: As a senior member, there's an opportunity to mentor and guide junior designers, fostering a collaborative learning environment.

• Career Progression: Potential to advance into roles such as Lead Product Designer, Design Manager, or specialize further in UX Strategy or Design Operations.

📝 Enhancement Note: The "Senior" title implies a level of autonomy and strategic contribution beyond typical junior roles. The emphasis on influencing design maturity and working on a large-scale product offers significant growth potential. The company's hyper-growth trajectory suggests opportunities for rapid career advancement.

🌐 Work Environment

Office Type: The company offers a flexible hybrid model. Employees are expected to be in the office on Tuesdays, Wednesdays, and Thursdays, with the option to work from home on Mondays and Fridays. This setup balances in-person collaboration with remote flexibility.

Office Location(s): The primary office is located at Rödingsmarkt 39, 20459 Hamburg, Germany. This central Hamburg location likely provides good accessibility and a vibrant working environment.

Workspace Context:

• Collaborative Spaces: The office environment is designed to foster collaboration, particularly on core in-office days, encouraging team interaction, brainstorming, and knowledge sharing.

• Technology & Tools: Employees will have access to the necessary design tools and technology stack, including Figma and potentially other relevant software for prototyping, asset creation, and design system management.

• Team Interaction: The hybrid model still allows for regular interaction with the design team, product managers, and engineers, ensuring a connected and integrated work experience despite remote days.

• Data-Driven Environment: The workspace will likely be equipped to support data analysis and experimentation, with teams accustomed to using dashboards and performance metrics to guide their work.

Work Schedule: A standard 40-hour work week is expected, with the flexibility provided by the hybrid model to manage personal schedules and work-life balance. The emphasis on performance suggests a results-oriented approach rather than strict adherence to hours.

📝 Enhancement Note: The hybrid model is clearly defined, with specific days for in-office work. This is a key detail for candidates considering location and work-life balance. The description of the company as a "tech challenger" implies a modern, potentially open-plan office designed for collaboration and innovation.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your application, CV, and portfolio to assess basic qualifications and alignment with the role.

• Portfolio Review & Discussion: A dedicated session where you will present your portfolio, discussing your design process, key projects, and how your work aligns with exmox's goals. Expect to dive deep into specific case studies.

• Skills Assessment/Challenge: Potentially a design challenge or a practical exercise, either take-home or conducted during an interview, to evaluate your UI design skills, problem-solving abilities, and approach to specific design problems.

• Cross-functional Interviews: Interviews with team members from product management, engineering, and UX research to assess collaboration skills, communication, and cultural fit.

• Hiring Manager/Leadership Interview: A final interview to discuss your overall experience, career aspirations, and fit within the company's ambitious culture.

Portfolio Review Tips:

• Curate for Impact: Select projects that best showcase your UI design craft, mobile experience, and ability to drive engagement and performance. Prioritize quality over quantity.

• Tell a Story: For each case study, clearly articulate the problem, your role, your process, the challenges faced, your design decisions, and the measurable outcomes.

• Highlight UI Craftsmanship: Showcase your attention to detail in layout, typography, color, iconography, and especially motion/animation. Ensure your visual design skills are evident.

• Demonstrate Design System Thinking: If applicable, show how you've worked with or contributed to design systems, explaining the benefits and your approach.

• Quantify Success: Wherever possible, include metrics and data that demonstrate the impact of your designs on user behavior or business KPIs.

• Be Prepared for Figma Deep Dives: Given Figma's importance, be ready to discuss your workflow, component usage, and prototyping techniques within the tool.

• Tailor to exmox: Research exmox's products and industry. Frame your work in a way that shows how your skills can address their specific challenges and goals in mobile gaming user acquisition.

Challenge Preparation:

• Understand the Context: If given a design challenge, ensure you fully understand the problem statement, target audience, and business objectives.

• Focus on Process: Demonstrate a clear, logical design process, even if time is limited. Show your thinking, not just the final output.

• Prioritize UI & Motion: Given the role's UI focus, pay close attention to visual polish, interaction design, and motion in your solution.

• Consider Data & Iteration: Think about how your design could be tested and iterated upon using data, reflecting the company's culture.

• Communicate Clearly: Be prepared to articulate your design decisions and rationale concisely and effectively.

📝 Enhancement Note: The interview process is likely to be rigorous, with a strong emphasis on portfolio presentation and practical design skills. Candidates should be prepared to demonstrate not only their UI expertise but also their understanding of the product development lifecycle, data-driven iteration, and ability to contribute to a design system.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design tool for UI design, wireframing, prototyping, and collaboration. Advanced proficiency is expected.

• Prototyping Tools: Likely integrated within Figma, or potentially separate tools like Principle or After Effects for more complex motion design prototypes.

• Illustration/Asset Creation Software: Tools such as Adobe Illustrator, Photoshop, or similar vector/raster graphics editors for creating icons, illustrations, and other visual assets.

Analytics & Reporting:

• Data Analytics Platforms: Experience with tools for analyzing user behavior and product performance (e.g., Amplitude, Mixpanel, Google Analytics, or internal dashboards) is highly beneficial, as the role is data-driven.

• A/B Testing Platforms: Familiarity with platforms used for experimentation and A/B testing to validate design hypotheses.

CRM & Automation:

• While not directly a design tool, an understanding of how designs integrate with CRM systems (if applicable to user acquisition flows) or marketing automation platforms could be advantageous. Design System Management:

• Tools and methodologies for managing design systems, likely integrated within Figma or using dedicated documentation platforms.

📝 Enhancement Note: The explicit mention of Figma as a "strong proficiency" requirement is critical. The emphasis on data and performance also suggests that familiarity with analytics and A/B testing tools would be highly advantageous for a designer in this role.

👥 Team Culture & Values

Operations Values:

• Ownership: Taking full responsibility for one's work, driving initiatives forward, and ensuring meaningful value delivery. This translates to designers proactively owning features and seeing them through to successful implementation.

• Proactiveness: Anticipating challenges, identifying opportunities, and taking initiative without waiting for explicit direction. Designers are expected to be self-starters who identify areas for improvement.

• Prioritization: Focusing on what matters most, balancing speed with quality, and managing workload effectively in a fast-paced environment. This means designers need to make trade-offs and focus on high-impact tasks.

• Feedback Mindset: Comfortably giving and receiving constructive feedback, viewing it as essential for iteration and growth. Designers should be open to multiple refinement cycles.

• Creative Thinking: Exploring a wide range of ideas, from safe options to bold concepts, to achieve the most impactful outcome. Designers are encouraged to be innovative.

• Performance & Impact: A relentless focus on delivering results and achieving ambitious goals. Design work is evaluated based on its contribution to KPIs and business objectives.

Collaboration Style:

• Cross-functional Integration: Designers work seamlessly with product managers, engineers, and researchers, fostering a unified approach to product development.

• Data-Informed Design: Collaboration is heavily influenced by data and user insights, with a shared understanding of metrics and experimentation.

• Iterative & Experimental: The team embraces an iterative design process, constantly testing, learning, and refining solutions based on performance and user feedback.

• Direct Communication: Given the "ambitious people" and "real ownership" culture, expect direct, open, and honest communication, with a focus on constructive debate to achieve the best outcomes.

📝 Enhancement Note: The company values are strongly aligned with a high-performance, growth-oriented culture. For a designer, this means being comfortable with data, taking initiative, and focusing on measurable outcomes rather than just aesthetic output. The emphasis on feedback and proactiveness suggests a culture of continuous improvement.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Speed and Quality in Hyper-Growth: The "hyper-growth" environment means constant pressure to deliver quickly, which can challenge the ability to maintain high UI craft and thorough design processes.

• Data Interpretation for Design: Effectively translating complex user data and A/B test results into actionable design improvements requires strong analytical and critical thinking skills.

• Multi-Brand Design Consistency: Managing design consistency and adaptability across multiple brands or white-label products can be complex, requiring a robust design system and strategic thinking.

• Evolving Design Maturity: Contributing to the growth of design maturity within the company means navigating organizational change, advocating for design best practices, and potentially