UX/UI Designer

vor 2 Wochen

Berlin, Berlin, Deutschland Slang Vollzeit 40.000 € - 80.000 € pro Jahr


UX/UI Designer (Mobile App & Game Interfaces)

Join a bold, culture-powered AI startup from day one.

SLANG is not your typical language app.

We believe that learning a new language should feel like living it. Our app blends AI-driven conversation, movie-like storytelling and real-world slang into a gamified, mobile-first learning experience. Think Duolingo meets TikTok.

Were building a new category of learning product. Playful, pop-cultural, deeply intelligent and were looking for a UX/UI Designer whos excited to help shape the look, feel and usability of SLANG from the ground up.

Role Requirements

  • Design intuitive, mobile-first interfaces for real-time, AI-driven conversations

  • Create wireframes, mockups, and clickable prototypes to bring story-based scenarios to life. From movie sets or concerts to day-by-day conversations in a cafe.

  • Translate user flows and narrative arcs into engaging game-like experiences

  • Define the visual language of the brand - colors, type, layout, and tone

  • Collaborate directly with the founding team, devs, and AI leads to get us to MVP

  • Evolve ideas from sketches to production-ready visuals - fast, iterative, creative
  • Plan and execute core UX/CX deliverables including heuristic and IA audits, ecosystem maps, personas, customer journeys, service blueprints, and wireframes
  • Collaborate across disciplines in both agile and waterfall processes to quickly deliver impactful solutions
  • Participate in pitches.
  • Keep on top of best practices and trends to ensure we are at the forefront of the industry

Qualities & Characteristics

  • Experience or study in UX/UI, game interface design, or interaction design

  • Strong skills in tools like Figma, Adobe XD, or similar

  • A sharp eye for detail - layout, motion, feedback, hierarchy

  • Curiosity for language, pop culture, AI, or gaming is a plus

  • A portfolio (student projects are welcome) that shows your range and process

  • Self-driven and proactive - you bring ideas, not just solutions

SLANG is early. Thats your opportunity.

Were a small team building a product we believe should exist - and were looking for creative minds who want to grow with us.

SLANG is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

Send us your portfolio, or just drop us a message on



Working Place:

Berlin, Germany

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