Location: Warsaw (On-site) 

At SumUp, we empower small merchants to thrive by providing innovative tools and solutions that simplify their business operations. Our Online Store team focuses on enabling merchants to create and manage their eCommerce presence effortlessly.

We’re looking for a Senior Product Designer to join our Online Store team and take the lead in designing impactful and user-friendly experiences for our merchants. You’ll work primarily with our Web squad, focusing on improving our Store Editor and Store Front, ensuring exceptional user experiences while driving measurable business impact.

• Collaborate closely with product management, engineering, and marketing teams to understand and refine product requirements.
• Design and improve the Store Editor (the tool merchants use to build their websites) and the Store Front (the final website viewed by customers).
• Conduct user research to identify pain points, feature gaps, and opportunities for improving the Store Editor and Store Front.
• Translate insights into wireframes, flow diagrams, prototypes, and high-fidelity designs that align with business objectives and user needs.
• Actively contribute to improving design practices within the team and across the company.
• Ensure quality and consistency in user experience and visual design throughout the product development lifecycle.
• Present and communicate design rationale effectively to stakeholders, fostering alignment and understanding.

• 5+ years of experience in designing customer-facing digital products, with a strong focus on UX and UI.
• A deep understanding of layout, typography, visual hierarchy, and system thinking for consistent, scalable designs.
• Hands-on experience with design systems and working within established design paradigms.
• A proven track record of collaborating with product and engineering teams throughout the product lifecycle.
• Expertise in conducting both qualitative and quantitative research to inform design decisions.
• Exceptional critical thinking, presentation, and stakeholder management skills.
• Fluency in design tools and working with quantitative data to validate and improve designs.
• A customer-centric mindset, with a passion for solving complex problems simply and effectively.

• Be part of an international team of 3,000+ people from over 50 nationalities.
• 📚  A dedicated annual Learning &Development budget for attending conferences and/or advancing your career through further education.
• 🚀  Enrolment into our virtual stock ownership program - you will own a stake in SumUp’s future success. 
• 👩🏼‍💻  The opportunity to work on large-scale FinTech products used by millions of businesses around the world.
• ⚙️  Dedicated time every other week for side projects and open source initiatives as well as a yearly hackathon. 
• 🚵🏾‍♂️  Co-financed Sport Card membership
• 🩺  Private Medical Insurance for you and your family

About SumUp:We believe in the everyday hero.

At SumUp, small business owners are at the heart of what we do. That’s why we create simple, powerful financial solutions to help them succeed. With a founder’s mentality and a team-first attitude, our global teams work together to empower small merchants to do what they love.

SumUp is an Equal Opportunity Employer committed to diversity and inclusion in the workplace. We proudly pursue a diverse workforce and do not make hiring decisions based on race, religion, nationality, gender, or any other characteristic protected by law.

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.