Senior UI Designer - B2C Mobile (f/m/x)

About the Position

Join exmox GmbH in Hamburg, Germany as a Senior UI Designer for B2C Mobile (f/m/x). Impact millions of users with engaging, scalable designs.

Responsibilities

• Feature ownership: Own and design new features from concept through final handoff.
• UI design: Design visually engaging and highly polished interfaces for our B2C mobile app.
• Visual assets: Create illustrations, icons, and other graphical assets to support your designs.
• Developer handoff: Deliver production-ready assets, specifications, prototypes, and documentation to engineering teams.
• Design system: Build, maintain, and contribute to our evolving design system.
• Design quality: Conduct design reviews to ensure implementations match the intended designs.
• Research collaboration: Work closely with UX research and data teams to evaluate and improve your designs.
• Iteration & feedback: Gather feedback and continuously refine and improve your work.

Requirements

• Portfolio: A portfolio showcasing outstanding mobile UI craft and visual design.
• Professional experience: 5+ years of experience working in product teams as a UI, UI/UX, or Product Designer.
• Consumer product design: Experience designing habit-forming, engaging, consumer-facing interfaces.
• Industry background: Experience in marketing, gaming, or other B2C-heavy industries is a plus.
• Hard Skills:
  • Design tools: Strong proficiency in Figma.
  • Motion & interaction design: Expertise in motion design, animation, and transitions to craft dynamic interfaces.
  • Visual asset creation: Expertise in creating illustrations, iconography, and other visual assets.
  • Design systems: Expertise in designing, shipping, and maintaining design systems.
  • Multi-brand products: Experience with multi-brand, white-label products and theming systems.
  • Brand identity: Experience in defining, designing, and documenting brand identities.
  • Copywriting: Experience in copywriting, including defining tone, voice, and messaging.
  • Accessibility & usability: Strong knowledge of accessibility and usability principles.
  • Frontend awareness: Understanding of front-end technologies and implementation constraints.
  • Language skills: Fluency in English; German is a plus.
• Soft Skills:
  • Ownership: You take full responsibility for your work, drive initiatives forward, align stakeholders, and ensure meaningful value delivery.
  • Proactiveness: You anticipate challenges, identify opportunities, and take initiative without waiting for direction.
  • Prioritisation: You focus on what matters most, balance speed and quality, and manage your workload effectively in a fast-paced environment.
  • Feedback mindset: You give constructive feedback thoughtfully and embrace feedback as an essential part of iteration and growth, comfortably navigating multiple refinement cycles.
  • Creative thinking: You explore a wide range of ideas and solutions from safe bets to bold, out-of-the-box concepts to achieve the most impactful outcome.

We Offer

• Impact: Your work directly influences a product used by millions. You’ll see the effect of your design decisions on business KPIs and learn how to create value through design.
• Data-driven culture: Data sits at the core of every decision we make. You’ll design, test, and iterate based on real user insights and performance metrics.
• Large global user base: You’ll design for a product with over 25 million users worldwide, operating at true scale.
• Growing design maturity: Our product design team is on a journey to elevate design maturity at exmox, and you’ll actively shape and contribute to that evolution.
• Cross-functional design team: You’ll collaborate within a dedicated design team including Product designers, UI Designers, and UX Researcher.
• Perks: Transport subsidy, learning budget, wellness and gym, workation, bi-weekly team lunches, and more.

About the Company

We are exmox, a Hamburg-based user acquisition partner helping mobile gaming companies, and brands across other industries, scale and engage their audiences sustainably. Our innovative business model focuses on rewarded advertising, allowing users to earn rewards for engaging with client apps, driving higher engagement and revenue. Our products are available across DACH, the US, UK, Canada, Australia & New Zealand, Scandinavia, Benelux, and France, in partnership with a wide range of industry leaders in the mobile gaming space.

With 120+ employees from 25+ nationalities, we are a diverse, collaborative, and experienced team, always looking to welcome new colleagues who want to grow with us.

We look forward to meeting you!

exmox GmbH

Job Type: Full-time

Location: Hamburg, Germany

Work Location Type: Hybrid

Date posted: Feb 19, 2026