Founding UI/UX Designer & Researcher (m/f/d)

Design & Product

• Own the entire product design process — discovery, wireframes, prototypes, interaction design, and final UI.
• Build and maintain Stackgini's design system.
• Design AI-native interfaces: Guided workflows, generated content surfaces, AI output verification and structured data views that make complexity navigable. This is a core design challenge at Stackgini, not an afterthought.
• Work closely with engineering to spec, hand off, and QA implementations.
• Define and improve information architecture and navigation patterns as the product grows.
• Translate product strategy and roadmap priorities into design solutions, proactively proposing directions rather than waiting for specs. User Research
• Plan and run qualitative research: user interviews, contextual inquiry, and usability testing — with real users on a regular cadence.
• Synthesize findings into actionable insights and communicate them clearly to the team.
• Identify unmet needs and surface opportunities for new features or improvements.

Must-Have Experience

• 4+ years of product design experience with a portfolio showing B2B SaaS, enterprise tools, or workflow automation products.
• Proven ability to work across the full design lifecycle — from user research and concept through to polished, production-ready UI.
• Expert-level Figma skills, including component libraries, auto-layout, and design system management.
• AI-first mindset: you default to AI tools to accelerate your work — research synthesis, copy drafts, prototyping, ideation — not as a shortcut, but as a force multiplier.
• Hands-on experience with AI-assisted design and prototyping tools such as Lovable, Claude (Anthropic), Cursor, or Claude Code to move from concept to working prototype rapidly.
• Demonstrated experience designing AI Human interaction patterns — you know how users prompt, review, correct, and build trust with AI-generated outputs. You understand where AI should lead, where humans must stay in control, and how to design the handoff between both.
• Experience in early-stage or 0→1 product environments where you've had to make decisions with limited information.
• Strong interaction design instincts: you think in flows, not just screens.

Highly Valued

• Background designing compliance, risk, or governance tools (or other high-stakes, information-dense B2B products).
• Familiarity with enterprise IT landscapes or the IT4IT ecosystem.
• Experience in fast-growing startups or dynamic environments.
• Familiarity with accessibility standards (WCAG 2.1 AA) and inclusive design practices.

Benefits

• Competitive compensation package including employee stock options
• Opportunities for professional growth
• 30 days of vacation and day off on your birthday
• Modern office space in Berlin
• Budget for self-improvement, and other perks
• Contribution to a Gympass & Deutschlandticket subscription
• Dedicated time for learning & innovation
• Quarterly Get-Together-Events
• The best popcorn in town