Product Designer .
UI Specialist
Systems thinker
No-code Creative

Marjon Siero

Passionate about transforming complex challenges into intuitive designs, I bring over 11 years of experience in creating user-centered products that seamlessly blend functionality and aesthetics.

Currently available
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Gymbase logoSpotzer logoIronhack logoBoldking logoGOGO logoSunweb logo
Portfolio

Projects

Lightspeed hub

B2B
SaaS

Lightspeed Commerce is a one-stop commerce platform that empowers merchants around the world to simplify, scale and provide exceptional customer experiences. During this project we created a self-serve platform for users to manage their subscriptions.

✦  Stategy, Design Thinking, Research, Architecture, UI, Prototyping, Usability testing, Collaboration, Stakeholder management

01

Remember

Application
UX/UI
Design System
AI

This self-initiated project began with a simple question: Why is it so hard to keep track of the important moments in people’s lives? As a Product Designer, I wanted to create a solution that goes beyond reminders—a personal calendar that’s truly personal.

✦  Stategy, Research, User flows, User Interface, Design Systems, AI

02

Sunweb app

Native app
e-Commerce

Building Sunweb's first application was a great challenge! Together with a Product Owner, Android dev team, iOS dev team and a UX researcher, we made it happen and today the application has 100k+ downloads, is listed in the top travel apps on the Apple App Store and has a 4.6 star rating in both app stores.

✦  UX, Architecture, Prototyping, UI, Usability testing, Product Development, Branding

03

GOGO Redesign

Responsive webdesign
Visual Design
Design Systems

GOGO Tours is one of the most well known youngster travel brands in the Netherlands. The old website was looking out of date and in order to keep its position in the market, a redesign was needed.

✦  Design audit, Stategy, User Interface Design, Cross-functional collaboration, Design Systems

04