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# Senior Product Designer- Hardware (fixed term 12 months)

- **Company:** SumUp
- **Location:** Berlin, Germany
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Smart Devices, Software Engineering, Backend, Figma
- **Published:** August 27, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=fc25133bbe11f1b5

## About the Role

* Extensive experience owning complex product design work independently, with deep expertise in either UX or UI and strong skills in the other
 * Comfort defining multi step flows and information architecture, accounting for edge cases and dependencies across the user journey
 * Fluency with common design and prototyping tools, particularly Figma
 * A human centred design process, backed by both qualitative and quantitative research methods
 * Ability to translate technical constraints into design trade-offs and document them clearly in specs
 * Track record shipping complex products through a full development cycle in an agile environment

Nice to have:

 * Experience with hardware, smart devices, or IoT products
 * Experience launching products in new or global markets, including localisation and multi screen considerations

## Description

Hardware is the team behind the card readers merchants use every day to take payments, from a market stall to a busy café till. The role sits within the Solo squad, working across embedded systems, on-device UI, companion app, and backend, so decisions made here shape a product experience unlike a typical app role. Whoever joins will step into a well-established craft with real scope to shape how the next generation of Solo evolves, working directly with engineering to bring ideas from concept to something millions of merchants use daily., * Work across the full hardware experience (embedded, on-device UI, app, and backend), partnering with product management and engineering to reach the best solution for merchants

 * Make and explain design trade-offs against real technical constraints, without compromising product quality
 * Partner with product to define success metrics tied to business goals, and use data to validate design decisions
 * Evolve SumUp's global design system (Circuit UI) and the Solo hardware UI library, keeping a consistent design vision
 * Share feedback and craft knowledge with the wider design chapter


## Related Videos

- [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api)
- [UX is a fullstack job!](https://www.wearedevelopers.com/videos/1020-ux-is-a-fullstack-job)
- [Fireside Chat with Kris Rasmussen, CTO at Figma](https://www.wearedevelopers.com/videos/982-fireside-chat-with-kris-rasmussen-cto-at-figma)
- [Bridging the Gap](https://www.wearedevelopers.com/videos/794-bridging-the-gap)

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