Senior Product Design Engineer in Berlin

At Rohlik Group, we are building the future of e-grocery for over a million active customers across the Czech Republic, Germany, Austria, Hungary, and Romania.

We own our entire technology stack - from storefronts and apps to automated fulfillment centers and last-mile logistics.

Within the Customer Experience (CUEX) domain, we own every touchpoint a customer interacts with, from the homepage to checkout and real-time order tracking across web, i OS, and Android.

Our five storefronts run on a single product spine with localized content, pricing, and brand layers.

We operate as a deliberately tight-knit, high-performing team where a Product Owner, Engineering Manager, Tech Lead, two Product Designers, and a dedicated full-stack engineering team ship fast, iterate constantly, and take full ownership of the end-to-end user journey.

Most interface failures in e-commerce aren't layout issues - they are communication problems: what is said, in what order, and on which screen.

As Senior Product Design Engineer, you will own the end-to-end design of all customer-facing surfaces across five markets.

You will also manage our design system, Maia (our AI shopping assistant), and provide the design guidance that powers our automated coding workflows.

• Why this role is exciting
• High-impact Group scope: Design every customer-facing touchpoint across web, i OS, and Android for five international markets, impacting millions of orders.
• True end-to-end ownership: Lead the complete lifecycle of product design - from initial problem definition and customer research to shipped A/B tests and real-world performance analysis.
• AI-first execution: Rohlik is an AI-first company.

You'll own the interface design for Maia, our AI shopping assistant, and build the structured design system guidance used by AI coding agents to generate on-brand code without hand-coding interfaces.

• Direct customer engagement: Lead user research and usability testing sessions directly with real shoppers, rather than commissioning external agencies or receiving filtered insights.
• High accountability, low overhead: Work in a small, autonomous team where design decisions move straight to production and work that doesn't deliver measured impact is honestly reverted.
• What you will own and deliver
• Customer

Surfaces: Own the end-to-end design and UX strategy across web, i OS, and Android for all core journey stages: homepage, search & browse, product pages, basket, slot selection, checkout, and order tracking.

• Design System as a

Product: Own component architecture, design tokens, patterns, and documentation, ensuring our coding agents have precise design guidance to generate accurate interfaces.

• AI Experience

Design: Define the interaction patterns for Maia (our AI shopping assistant), governing when it intervenes, how it presents information, and how it hands over to human support.

• Experimentation & Analysis: Drive hypotheses, prototype rapidly, and evaluate A/B test results objectively - scaling successful experiments and sunsetting features that miss target performance.
• Direct User Research: Conduct qualitative interviews, usability tests, and field research directly with customers to continuously uncover friction points.
• Cross-Functional

Partnership: Collaborate closely with the Product Owner, Engineering Manager, Tech Lead, and your peer product designer, while providing design input to Commercial, Marketing, and Operations.

• What we are looking for
• 5+ years of experience designing consumer-facing digital products with a strong portfolio of shipped work across both web and native mobile (i OS and Android).
• Advanced Figma & Design System expertise: Deep, hands-on experience building, scaling, and architecting multi-platform design systems at the token and component level.
• Data-fluent mindset: Ability to read and rigorously interpret A/B testing data, distinguishing genuine impact from vanity metrics.
• Fluency with AI tooling: Practical experience integrating AI tools into modern design, prototyping, and design system workflows, along with a clear view of where conversational AI adds real interface value.
• User research expertise: Demonstrated experience designing, running, and analyzing qualitative usability sessions directly with end users.
• Strong product reasoning: Excellent communication skills in English (C1 level or above), with the ability to articulate the strategic and behavioral rationale behind design decisions.
• Nice-to-haves
• Experience designing production-grade AI or assistant-driven interfaces.
• Experience contributing directly to code at the component or token level.
• Background in e-commerce, quick-commerce, online grocery, or last-mile delivery.
• First‑hand familiarity with how German customers shop.
• Fluency in German or Czech.
• What's in it for you
• Fair pay, transparent, stable compensation A strong fixed salary
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