Mac Kozal

Mac Kozal

Barcelona, Spain
Member since October 3, 2019
Along with co-founding six mobile apps, Mac is a product/UX designer with 12 years of design experience and a broad architectural background. He combines the processes of those two specialties in a daily routine to create inspired and innovative products. Mac specializes in planning, conceptualizing, and designing clean, scalable, functional products, and experiences that leave a positive impact on people and solve business problems.
Mac is now available for hire
Digital Design
  • Product Designer
    2018 - PRESENT
    • Designed and framed the design to the development process.
    • Constructed and maintained a scalable design system: Polestar.
    • Built the data-informed culture within the organization by implementing tools like Mixpanel and Hotjar.
    • Applied UX methodologies to a survey that improved the completion rate by 51-95%.
    • Created platfrom UX and UI improvements.
    • Prepared and performed usability testings.
    • Developed feature prioritization methodology that helped us addressing problems better.
    • Conceptualized and designed Starred Connect from scratch; Starred Connect is part of the platform that allows building integrations with external apps without code knowledge. The average time to integrate with other platforms decreased from days to minutes.
    • Designed Template Gallery and Insights Gallery—tools that allow our users to improve the UX for the respondent and get better, actionable insights.
    • Evangelized design-driven processes within the company.
    • Designed platform onboarding improvements and proposed relevant metrics to measure.
    • Conducted design sprints.
    • Performed design audits and usability heuristics.
    • Led design projects.
    • Strategized, conceptualized, designed, and tested the whole people experience workflow, that included complex dashboards and wizard-like forms.
    • Worked closely with the head of product on prioritizing and conceptualizing the product strategy.
    Technologies: Figma, Sketch, Abstract, Mixpanel, inVision, UsabilityHub, Adobe Suite, Design Systems, Design Sprints, Usability Testings, SUS,, Atomic, ProtoPie, Flinto, Marvel, Google Suite, Maze, Lucidchart, Overflow, Google Analytics
  • Co-founder | UX/Product Designer
    2019 - 2019
    Mood Tracker
    • Conceptualized and designed the mood tracker iOS/Android app; it was developed using React Native, Expo, and TypeScript.
    • Managed the project.
    • Designed and maintained the design system.
    • Prepared the documentation.
    • Managed a remote developer.
    • Designed the animation system.
    • Experimented and developed new features.
    Technologies: Figma, Design Systems, Usability Testings,, ProtoPie, Flinto, Traditional Media
  • Master of Architecture degree in Architecture and Urban Planning
    2004 - 2009
    Lodz University of Technology - Łódź, Poland


Barcelona, Spain

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