Mac Kozal

Designer

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.

Visual Design Data Visualization UX Design UI Design Digital Product Design WebApp Protoyping Low-fidelity Mockups High-fidelity Mockups High-fidelity Prototypes UX Flows User Flows UX Documentation Balsamiq Mockups iOS Show more

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Portfolio

Digital Design

Starred People Experience Overview
- Dashboards
- SaaS
- UX Design
- Digital Product Design
- UI Design
- Design Systems
- Charts
- Information Architecture (IA)
- Analytics
- SaaS Design
- Usability Testing
- Data
- User Metrics
- Prototyping
- Presentation Design
- WebApp
- Data Visualization
- Data-informed Visual Design
- Software
- Wireframes
- Low-fidelity Mockups
- Low-fidelity Prototypes
- High-fidelity Mockups
- High-fidelity Prototypes
- Video Presentations
- Flowcharts
- User Flows
- Figma
- Mixpanel
- Recruitment
- Human Resources (HR)
- Surveys
- Ideation
- Documentation
- System Design
Mood Tracker
- iOS
- Android
- UX Design
- UI Design
- Digital Product Design
- Emojis & Emoticons
- Psychology & Mental Health
- Charts
- Data
- Emotional Design
- Microinteractions
- Dark UIs
- Apps
- Protoyping
- Health & Wellness
- Low-fidelity Mockups
- Low-fidelity Prototypes
- High-fidelity Mockups
- High-fidelity Prototypes
- Wireframes
- User Flows
- UX Flows
- Research
- Ideation
- Documentation
- Design Systems
Starred | Respondent Feedback Form
- SaaS
- UX Design
- UI Design
- Digital Product Design
- Design Systems
- Usability Testing
- User Metrics
- Metrics
- Surveys
- Survey Design
- Microinteractions
- WebApp
- Mixpanel
- Corporate
- Analytics
- Information Architecture (IA)
- SaaS Design
- Prototyping
- Wireframes
- Low-fidelity Mockups
- Low-fidelity Prototypes
- High-fidelity Mockups
- High-fidelity Prototypes
- Flowcharts
- User Flows
- Figma
- Sketch
- UsabilityHub
- Maze
- Documentation
- Presentation Design
- Recruiting
- Human Resources (HR)
- Customer Service
- Surveying
- Online Surveys
- User Surveys
- Ideation
- UX Documentation
- Design Documentation
- Research
- User Interviews
- Concept Testing
- User Preferences
- Remote Usability Testing
- Futures Prioritization
- Heatmaps
- Quality Assurance (QA)
- UX Assessment
- Form Design
Polestar Design System
- UX Design
- UI Design
- Digital Product Design
- Design Systems
- SaaS
- SaaS Design
- Information Architecture (IA)
- Analytics
- Prototyping
- Ideation
- Research
- Documentation
- UX Documentation
- Motion Design
- Mixpanel
- Figma
- Presentation Design
- Heatmaps
- Quality Assurance (QA)
- UX Assessment
- User Testing
- Flowcharts
- User Task Flows
- User Flows
- UX Wireflows
- Component Libraries
- UI Components
- Futures Prioritization
Echotags
- iOS
- UX Design
- UI Design
- Digital Product Design
- Mobile
- Audio Montage
- Hand-drawn Illustrations
- Vector Art
- Information Architecture (IA)
- Content Marketing
- Content Creation
- Newsletter Design
- User Testing
- Mobile GPS
- Geolocation Detection
- Geolocation
- Prototyping
- UX Documentation
- Wireframes
- Low-fidelity Mockups
- Low-fidelity Prototypes
- High-fidelity Mockups
- High-fidelity Prototypes
- High-speed Design
- Flowcharts
- User Flows
- User Personas
- Personas
- Sketch
- Tourism
- Documentation
- Quality Assurance (QA)
- Ideation
- Illustration
- Presentation Design
- Landing Page Design
- Newsletters
Starred Settings Pages
- UX Design
- UI Design
- Digital Product Design
- User Preferences
- Design Systems
- Analytics
- SaaS
- SaaS Design
- User Metrics
- Usability Testing
- Protoyping
- Wireframes
- Low-fidelity Mockups
- Low-fidelity Prototypes
- High-fidelity Mockups
- High-fidelity Prototypes
- Flowcharts
- User Flows
- User Feedback
- Figma
- Mixpanel
- Heatmaps
- Recruitment
- Recruiting
- HR Tools
- Human Resources (HR)
- Surveys
- Ideation
- Documentation
- UX Documentation
- User Permissions
- User Profiles
Illustrations
- Illustration
- Visual Design
- Line Drawing
- Pencil Drawing
- Hand Drawing
- Digital Drawing
- Sketch
- Procreate

Employment

Product Designer
2018 - PRESENT
Starred.com
- 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, Proto.io, 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, Atomic.io, ProtoPie, Flinto, Traditional Media
Product Designer
2019 - 2019
Suburbia
- Created the user experience for the product page and landing page.
- Designed and prototyped the interactive diagrams.
- Developed the strategy for iterative future changes for the landing page.
Technologies: Figma, Traditional Media
Co-founder | UX/Product Designer
2018 - 2018
Games Tracker
- Conceptualized and designed an online tool for tracking your computer games history.
- Designed and maintained the design system for dark UI.
- Prepared the documentation.
- Supervised the project.
- Managed a remote developer.
- Experimented and developed new features.
Technologies: Figma, Design Systems, Usability Testings, Atomic.io, ProtoPie, Flinto, Traditional Media
Co-founder | UX/Product Designer
2017 - 2017
Coypu
- Conceptualized and designed an ext-editor-like weekly planner.
- Prepared the documentation.
- Oversaw the project and scoped it for MVP.
- Managed a remote developer.
- Performed user testings.
- Experimented and developed new features.
Technologies: Sketch, Usability Testings, Traditional Media
Co-founder | UX/Product Designer | Content Creator
2016 - 2017
Echotags
- Conceptualized and designed hands-free: an offline audio guide to Amsterdam app (native iOS).
- Prepared the market research.
- Created and implemented usability testings.
- Prepared the documentation.
- Supervised the project.
- Managed a remote developer.
- Performed usability heuristics and user testings.
- Experimented and developed new features.
- Prepared the content and organized voice recordings for more than 200 POIs.
- Designed the data organization structure.
- Made the illustrations for the landing page.
- Prepared a comic-style newsletter for the users.
Technologies: Sketch, Usability Testing, Traditional Media, Adobe Suite, Google Suite
Architectural Designer
2007 - 2017
Multiple Companies
- Worked as an architect for multiple companies located in different countries.
- Used my knowledge to design and advise clients in the whole spectrum, from interiors to urban design based on solid knowledge of engineering, construction, and regulations.
Technologies: 3D, CAD (Computer-aided Design), Adobe Suite, Various Types of Traditional Media
Co-founder | UX/Product Designer
2016 - 2016
Jottings
- Conceptualized and designed real-time collaborative text editor in Markdown.
- Prepared the documentation.
- Supervised the project and scoped it for MVP.
- Managed a remote developer.
- Performed user testings.
- Experimented and developed new features.
Technologies: Sketch, Usability Testings, Traditional Media
Co-founder | UX/Product Designer
2016 - 2016
Checkers
- Conceptualized and designed Checkers for iMessage: a board game for iOS10 iMessage and Native iOS app. One of the first iMessage apps on the market promoted by Apple with over 140,000 users.
- Prepared the documentation.
- Managed the project and a remote developer.
- Performed usability heuristics and user testings.
- Experimented and developed new features.
Technologies: Sketch, Usability Testings, Traditional Media

Education

Master of Architecture degree in Architecture and Urban Planning
2004 - 2009
Lodz University of Technology - Łódź, Poland

Experience

Ideation12 years
Architecture10 years
User Testing4 years
Digital Product Design4 years
UI Design4 years
UX Design4 years
Protoyping4 years
Design Systems2 years

Location

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