Senior Product Designer (Mobile)

BUX; Amsterdam; Hybrid; EUR 65,000 - 85,000; Full time

Benefits offered by this job

Hybrid work environment

Company pension plan

Learning budget

Working from home allowance

Mobility benefit

Job summary

BUX is seeking a Senior Product Designer to enhance our app experience in Amsterdam. You will lead design processes for investing and savings products, ensuring user-centric, scalable solutions. Collaborate with engineers and stakeholders to create intuitive designs, rapidly prototype ideas, and shape new product areas.

Your role involves applying strong interaction design principles, contributing to product copy, and delivering high-fidelity designs that meet technical requirements.

The position supports a hybrid work setup, promoting flexibility and well-being for all employees.

Qualifications

• Strong understanding of mobile constraints for iOS and Android.
• Ability to design with technical awareness and not just visual polish.
• Experience in fintech or banking products is preferred.

Responsibilities

• Own the end‑to‑end problem space for both investing and savings products.
• Deliver high‑fidelity designs with clear documentation.
• Collaborate early with engineers to validate user flows.

Skills

Mobile design principles

Interaction design

Usability principles

Prototyping

Communication skills

Tools

AI-assisted design tools

Usability testing tools

Job description

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

The BUX 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.

The team consists of Product, Design, Android, iOS, Web, Backend engineering, and QA, and works closely with stakeholders across Web, Onboarding, Marketing, Data, Operations, and Compliance. We operate with a modern, AI‑assisted approach, leveraging AI tools across discovery, design exploration, prototyping, and decision‑making. We value clarity, strong execution, and using AI to meaningfully amplify team output.

What you will do

As a Senior Product Designer, you will own the end‑to‑end problem space - from early discovery to implementation‑ready delivery - across both investing and savings products.

You will work in ambiguous problem spaces, especially as we expand into savings, helping define problems, uncover user needs, and shape new product experiences from the ground up. You will explore solution directions and translate them into clear, testable designs.

Through rapid prototyping - including AI‑assisted tools - you will efficiently explore, validate, and refine ideas, moving from early concepts to strong design direction. You will collaborate closely with Product and Engineering to ensure solutions are both user‑centred and technically sound. This includes contributing to product copy where needed, clearly communicating design intent, and making trade‑offs explicit and intentional.

Your work will go beyond individual screens - you will think in systems, patterns, and scalability, shaping consistent and maintainable solutions across the app as we expand into new domains.

• 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

What you need to succeed

• Strong understanding of mobile constraints (iOS and Android patterns, responsiveness, performance, state handling, and platform differences)
• 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
• 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
• 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
• 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

BUX for everyone

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.