Senior Product Designer (Mobile)

About the Position

We are looking for a Senior Product Designer (Mobile) to join our BUX team based in Amsterdam.

The App team is responsible for evolving and scaling the BUX mobile experience - the core of our product used daily by our users. Our mission goes beyond investing. We are building a broader financial experience that includes both investing and savings, helping users grow and manage their money in a simple, transparent, and intuitive way.

Responsibilities

• Deliver high-fidelity designs, including components, variants, states, edge cases, empty states, and error states
• Ensure designs are clear, unambiguous, and ready for engineering implementation
• Design scalable patterns and systems that work across both investing and savings experiences
• Apply strong interaction design, usability, and accessibility principles
• Rapidly prototype and validate ideas through usability testing and iteration
• Collaborate early with engineers (iOS & Android) to validate flows and reduce rework
• Clearly communicate design intent, trade-offs, and rationale
• Use prototypes and concise documentation to support decision-making

Requirements

• 5+ years of experience and strong understanding of mobile constraints (iOS and Android patterns, responsiveness, performance, state handling, and platform differences)
• A proven track record of designing and scaling B2C products
• Ability to design with technical awareness, not just visual polish
• Experience working on complex product domains (e.g., fintech, banking, or similarly structured products)
• Experience working closely with mobile engineering teams in complex product environments
• Excellent communication skills - able to explain both what you designed and why it works
• Comfort working in ambiguity and shaping new product areas from early stages

Nice to Have

• Experience designing for savings, investing, or financial management products
• Experience using AI in design and development workflows (e.g., UI generation, component exploration, Figma-to-code, prototyping, documentation)
• Familiarity with mobile tech stacks and design systems (SwiftUI, Kotlin, Jetpack Compose, design tokens, etc.)
• Experience in regulated environments and understanding of compliance considerations in product design

We Offer

• International work environment
• Company pension plan
• Flexibility is at our core; we offer a hybrid work environment (1-2 days at the office)
• Working from home allowance
• Mobility benefit
• Gym membership contribution via Urban Sports
• Learning budget and full access to our learning and development platform
• A1 Dutch language course for you (and your partner)
• Delicious lunches at the office
• The possibility to work from abroad for 1 month every 12 months
• Take care of your mental and emotional well-being with unlimited appointments with psychologists or coaches through OpenUp
• Regular team gatherings and fun company events

About the Company

At BUX, we’re committed to making investing accessible and affordable for everyone through our intuitive app. We believe that a diverse team with a range of backgrounds, skills, and perspectives is key to achieving this mission. By embracing diversity, we strengthen our ability to innovate and serve our customers better.

To fully benefit from our diversity, it’s essential that everyone feels safe, included, and valued. We are dedicated to creating a workplace where each of us can bring our full selves to work and contribute to our shared goals.