Senior Product Design Engineer
Job description
Senior Product Design Engineer owning end-to-end product design for all customer-facing surfaces across web, iOS, and Android in five markets, plus the Maia AI shopping assistant and the design system guidance used by AI coding agents.
At a glance
- Employment
- Full-time · Employee (employment agreement)
- Work mode
- Hybrid
- Languages
- English – C1
What you'll do
- Own the end-to-end design and UX strategy across web, iOS, and Android for all core journey stages: homepage, search & browse, product pages, basket, slot selection, checkout, and order tracking
- Own component architecture, design tokens, patterns, and documentation, ensuring coding agents have precise design guidance to generate accurate interfaces
- Define the interaction patterns for Maia (AI shopping assistant), governing when it intervenes, how it presents information, and how it hands over to human support
- Drive hypotheses, prototype rapidly, and evaluate A/B test results objectively — scaling successful experiments and sunsetting features that miss target performance
- Conduct qualitative interviews, usability tests, and field research directly with customers to continuously uncover friction points
- Collaborate closely with the Product Owner, Engineering Manager, Tech Lead, and peer product designer, while providing design input to Commercial, Marketing, and Operations
What we're looking for
- 5+ years of experience designing consumer-facing digital products with a strong portfolio of shipped work across both web and native mobile (iOS and Android)
- Deep, hands-on experience building, scaling, and architecting multi-platform design systems at the token and component level (Figma)
- Ability to read and rigorously interpret A/B testing data, distinguishing genuine impact from vanity metrics
- 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
- Demonstrated experience designing, running, and analyzing qualitative usability sessions directly with end users
- Excellent communication skills in English (C1 level or above), with the ability to articulate the strategic and behavioral rationale behind design decisions
Nice to have
- 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
Your team
Customer Experience (CUEX) domain
Owns every touchpoint a customer interacts with, from the homepage to checkout and real-time order tracking across web, iOS, and Android. Five storefronts run on a single product spine with localized content, pricing, and brand layers. The team includes a Product Owner, Engineering Manager, Tech Lead, two Product Designers, and a dedicated full-stack engineering team.
Benefits
Hybrid work & real flexibility — three days in the office and the rest where it works best for you; paid vacation days above statutory and flexible scheduling
Mobility & convenience — company car available for selected management-level roles and fuel support for regular WH travel
- Fair pay, transparent, stable compensation — a strong fixed salary with clear rules, no bonus politics
- Subsidised meals/fresh food options in the office and regular refreshments like drinks, fruit, and snacks
- Grow with Knuspr — learn, experiment, and take ownership from day one
- Recognition & community — celebrate colleagues through Bonusly peer-recognition credits
- Health & wellbeing — access to UNIQA private insurance option and supportive wellbeing culture
- Premium membership — free Knuspr Premium membership with exclusive benefits
- Referral rewards through our group referral program
- Team events, celebrations, and moments to connect
Apply
Direct apply at Rohlik
Opens the job posting at Rohlik
About Rohlik
Key facts
- Operates five storefronts on a single product spine with localized content, pricing, and brand layers
- AI-first company
- Maia is its AI shopping assistant
- Knuspr is a related brand mentioned in benefits