Senior Product UX/UI Designer & Design Engineer
Janine Prange.
I don't hand off designs. I build shared direction, then ship in code: products that teams believe in and users actually want.
15+ years of end-to-end product design. 7+ years in B2B SaaS. I work in Figma and Claude Code, lead without authority, set quality standards others follow, and deliver outcomes, not just deliverables.
Work
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Sproutly
Shipping a real product with AI, without letting AI ship the product.
2026
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Segmented predictions
From a neglected page to the most visited page in the tool.
2025
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Pricing analytics
Building alignment around a structural decision.
2024
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Data stories
How user research turned a strong assumption into a better product.
2023
How I work
Collaboration drives outcomes.
The best solutions emerge from building shared direction with product, engineering, and data. Not from advocating for a design answer and hoping the room agrees.
Research protects the team's time.
A validated direction costs almost nothing upfront. The wrong direction, discovered after shipping, costs everything. That arithmetic never changes.
Outcomes belong to the whole team.
When design, engineering, and product own the result together, the result is better. And so is the work that produced it.
Code is where design gets tested.
A layout that works in Figma can still break in the browser. I build in code early so I catch that gap before it reaches users.
Based in Germany · German native, fluent in English · Open to Staff and Lead Product Designer and Design Engineer roles