Mario Stipetic
Verified Expert in Design
Designer
Zürich, Switzerland
Toptal member since February 1, 2016
Mario is a UI/UX product designer with 12+ years of experience and a passion for high-quality design. At Donorbox, he led a 9-person team as Head of UI/UX for a high-traffic SaaS platform. He’s worked with startups in SF and NYC, global firms like ZTE, and Salesforce-backed projects. An expert in web and mobile SaaS design, Mario holds a master’s in visual communication and has earned an Awwwards "Website of the Day" nomination.
Portfolio
BoxCircles SaaS Web App
Rise and Shine Educational Mobile App
Rewards and Coupons iOS App
Drizzzle | SaaS Time Tracking App for Small Design Teams
High-end Watch Rental eCommerce App
Work Experience
Head of UX/UI Product Design and UX/UI Product Designer
Donorbox
- Delivered a complete design system in Figma, unifying product design across Donorbox’s SaaS suite. Donorbox is a world-leading B2B donation platform that processed $5 billion by 2025 for good causes.
- Designed work on key UI/UX redesigns (e.g., donation forms, dashboards), contributing to improved user trust and engagement.
- Scaled a UX team (five designers, one copywriter, and one researcher), and introduced UX processes that fostered a mature design culture.
- Led the UI/UX redesign of a startup SaaS platform, delivering a modern, trust-building user experience in collaboration with senior designers, resulting in increased signups and user retention.
- Designed an online donation form in 2017 that processed $5 billion by 2025 for good causes—a design that set industry standards and remained relevant through 2025.
- Worked as head of design for a multidisciplinary team of six designers, a UX copywriter, and a UX researcher, driving collaboration and design excellence.
Product UX/UI Designer
An UX Agency
- Worked on the art direction, UX design, UI design, animations, and the overall organization of multiple web and mobile app projects.
- Designed several online platforms in various industries.
- Conceived around 20 challenging SaaS apps UI/UX designs from scratch.
- Designed multiple iOS apps with a focus on function and top-notch user interface design.
- Designed multiple UI animations with Principle and Figma.
- Performed user research, user testing, and design based on product metrics.
- Worked in an agile environment within a cross-functional team.
Mobile App UI Designer
ZTE Corporation
- Worked as lead UI designer in collaboration with the UX designer on an Android mobile app. It was a pleasure to gain valuable experience in working with a corporation that is one of the top ten worldwide largest smartphone manufacturers.
- Worked in close cooperation with the UX designer on UX/UI design integration and animations.
- Helped hire a mobile app logotype designer. Worked on mobile app icon design.
- Designed over 90 screens for Android mobile app interface in Google Material design standards.
- Prepared all the icon and graphic assets in PNG and SVG format.
- Designed the mobile app UI kit along with detailed UI elements size and space measurements, style guidelines, and font sizes.
- Designed the complete mobile app InVision interactive prototype.
Top Rated UX/UI Designer
Freelance
- Designed an Uber-like "sharing economy" concept app for iOS. Also designed the admin web application and the Android version.
- Designed a landing page for a social network web app.
- Designed an end-user and admin section for a news media web application.
- Contributed to mobile and web app visual identity design, information architecture design, wireframe design, interaction design, user interface design, user experience design, and visual design for various international clients.
- Designed an analytical web app interface, including end-user and admin sections.
- Designed a large video crowdfunding web application, including responsive version end-user and admin sections for a San Francisco-based startup.
UX/UI Designer
Thehyperactive Digital Design Studio
- Designed a website for a marketing company.
- Designed digital illustrations for the mobile app intro.
- Designed the user interface for an intranet web application for a large local bank.
- Designed information architecture, interactions, and wireframes for a mobile banking application.
- Contributed to mobile and web app visual identity design, information architecture design, wireframe design, interaction design, user interface design, user experience design, and visual design for various clients.
UX/UI Designer
Neuralab Digital Design Agency
- Designed a small iOS mobile app for travel help.
- Designed the main website for one of Croatia's largest insurance companies.
- Designed an iOS note mobile startup app.
- Designed a hybrid mobile app for one of the largest Croatian mobile carrier companies.
- Contributed to visual identity design, information architecture design, wireframe design, interaction design, user interface design, user experience design, and visual design for various clients.
Web App Designer and Developer
Personal Web Startup Projects
- Contributed to the visual identity design, information architecture design, wireframe design, interaction design, user interface design, user experience design, and visual design for a personal startup "image bookmarking" web application.
- Promoted and marketed the web app.
- Created the design for web app promotional materials.
Mobile Game Designer
Mobile Game Design
- Designed user interfaces for mobile games, including Java and iOS platforms.
- Created simple mobile game visual designs.
- Designed visual identity and promotional materials for mobile games.
- Illustrated mobile game characters and graphics.
Graphic and Web Designer
5-d Marketing Agency
- Designed visual graphics for exhibition stands.
- Designed the print brochures for various international clients.
- Designed a web app for a place discovery startup.
- Designed billboard prints for various clients.
Graphic and Web Designer
EMS&P Marketing Agency
- Designed websites for various local clients.
- Designed logos for various clients.
- Created brand visual designs for various websites.
- Photographed products for a client's web shop.
- Designed information architecture.
Graphic and Web Designer
Ve-mil - IT Company
- Designed a web app for online auctions.
- Designed monthly magazine print ads that were released in all major Croatian IT magazines.
- Designed animated banner commercials.
- Worked on improving branding, logotype, and company signage.
- Photographed in-house print ads.
Education
Master's Degree in Design of Visual Communication - UX and UI Design
Art Academy - Universitiy of Split, Croatia
Skills
Tools
Flinto, Flinto Prototyping, InVision, Marvel App, Sketch 4, Zeplin, Sketch 3, Adobe Photoshop, Adobe Illustrator, Spreadsheets, Figma Prototyping, Figma to React, Principle, Adobe InDesign, Sketch, Marvel, Microsoft Power BI
Languages
CSS, PHP, HTML, SQL
Platforms
iOS, Figma, Android, Mobile, Web, Webflow, Salesforce, WordPress, Shopify
Industry Expertise
Fashion, Real Estate, Social Networking, Exercise & Fitness, Games
Other
Branding, Interaction Design (IxD), Artificial Intelligence (AI), iOS App Design, Web Applications, eCommerce, Web Animation, Creative Direction, Enterprise SaaS, Android UI Design, UX Design, Augmented Reality (AR), SaaS Design, iOS UI Design, Web Design, iOS Guides, Interactive Prototypes, User Experience (UX), User Interface (UI), Design, UI Design, Visual Design, Android Guides, Conversion-driven UX, User Testing, Wireframing, User Flows, eCommerce UX, eCommerce UI, eCommerce Design, MVP Design, Hypothesis Testing, Mobile Apps, Responsive Web Apps, Web App UX, Web App UI, Mobile App UI, Mobile UX, Rapid Prototyping, Mockups, Information Architecture (IA), UX Audits, UI Audits, Platform Design, SaaS, Software as a Service (SaaS), Product Design, eCommerce Web Design, Landing Page Design, Enterprise Design, Mobile Design, Mobile App Design, Digital Product Design, Android Design Guidelines, Prototyping, Responsive UX Design, Usability, Web App Design, Data Visualization, Data-heavy Design, Machine Learning, Design Systems, User Experience Design, B2B, User Onboarding, UX Research, Usability Testing, App Design, Responsive Web Design (RWD), Web UI Design, Web UX Design, Landing Page Optimization, Landing Pages, Dashboards, Marketplace Design, UI Prototyping, Onboarding, Dashboard Design, Android App Design, Customer Relationship Management (CRM), Mobile UI, Mobile UI Design, Business to Consumer (B2C), Mobile UX Design, Conversion Rate Optimization (CRO), User Journeys, AI Design, Journey Mapping, UX Wireframes, User Journey Maps, Tailwind UI, Tailwind CSS, Responsive Design, Design Leadership, B2C, Design Reviews, User Stories, Demos, Product Demonstrations, Chatbot Conversation Design, Chatbots, Generative Artificial Intelligence (GenAI), Web UX, Fintech Design, Click-through Rates (CTR), Touchscreens, E-learning, Apple Human Interface, Cross-platform Design, Google Material Design, Mobile First, Responsive Layout, User Interviews, Web Application Design, Web Usability, UI Branding, Design Thinking, Discovery, Enterprise, Design Revamps, Detail-oriented, High-fidelity Prototypes, Minimum Viable Product (MVP), Project Estimation, Stakeholder Engagement, User Personas, User-centered Design (UCD), UX Strategy, Qualitative Research, Fintech, Illustration, Metrics, User Metrics, Personas, Agile, Agile UX, Lean UX, User Retention, Engagement Strategy, Animation, Value Proposition, Innovation, User Research, Task Flows, Remote User Testing, Customer Journey, Behavioral Psychology, Psychology, Storytelling, Graphic Design, Vector Design, Component Libraries, Plugins, Growth, Marketing Design, Direct to Consumer (D2C), Animated Prototypes, Website Audits, Squarespace, Desktop App Design, Visual Storytelling, Virtual Reality (VR), Search Engine Optimization (SEO), Blockchain & Cryptocurrency, React, Online Sales, AI Chatbots, Web Extensions, Gamification, Progressive Web Applications (PWAs), Front-end Development, Market Research, Digital Advertising, jQuery, Bootstrap, Online Dating, iOS UX Design, Donations, Web Forms, Nonprofits, UX Testing, Icon Design, Fashion Design, Beauty Products, Social Networks, Conceptual Design, Mobile eCommerce, UI Maps, HIG, Coupons, Time Tracking, Atomic Design, User Experience Strategy, Lean Startups, Startups, Startup Consulting, PostHog, Information Design, Tables, Microcopy, UX Writing, Educational Videos, Image Manipulation, Mixed Reality (MR), Shopify Design, Enterprise Resource Planning (ERP), Flutter, Game Design
Experience
- UX Design - 10 years
- Platform Design - 10 years
- Product Design - 10 years
- eCommerce - 9 years
- SaaS Design - 8 years
- iOS UI Design - 7 years
- User Research - 5 years
- Personas - 3 years
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