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Malt Strategy
Marina MintzMM

Marina Mintz

UX/UI Product Designer

€300/day
Barcelona, ES
3-7 years
Figma
User Research
User Experience Design
User Testing
Wireframing

Average response time: 1 hour

About Marina

Hi! I’m Marina. I’m a Product Designer with 5 years of experience helping startups and B2B SaaS companies evolve. I specialize in scaling and optimizing products—using deep user research and usability testing to turn complex pain points into intuitive, high-performing interfaces. I love working at the intersection of AI and UX, building scalable design systems and making sure technical tools feel human and easy to use. Let’s build something great together!

  • Portuguese

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Conversational

  • Italian

    Basic

Can work on-site
Barcelona (up to 10km)

Experience

  • Nichoos
    Product Designer
    July 2025 - Today (11 months)
    Brazil
    • • Spearheaded the end-to-end redesign of 20+ core admin panel pages to improve usability and visual hierarchy across the platform.
    • • Architected a scalable Design System from scratch to unify 10+ complex functionalities, ensuring visual and functional consistency.
    • • Partnered directly with the CEO to define product roadmaps and translate business objectives into high-fidelity, developer-ready solutions.
    • • Optimized user journeys by synthesizing support team feedback and conducting design QA to ensure pixel-perfect implementation.
  • Freelancer
    Freelance UX/UI Designer
    February 2024 - Today (2 years and 4 months)
    • • Redesigned a call-center platform using naturalistic observation, adding an in-app notepad and reordering features to align with actual agent workflows.
    • • Engineered 5+ distinct e-commerce product page templates with multiple variations to scale diverse inventory and improve the shopping experience.
    • • Conducted UX research and interviews across healthcare and SaaS niches to uncover user pain points and design opportunities.
    • • Translated functional requirements into high-fidelity wireframes and interactive prototypes in Figma to deliver engaging user experiences.
    • • Partnered with engineering teams to ensure high-quality, pixel-perfect implementation of design solutions.
  • Sling Hub
    Product Designer
    September 2024 - February 2025 (5 months)
    • • Spearheaded the "Open Innovation Challenges" feature, leveraging Google Analytics to identify signup friction and achieving an 8.4 NPS in the first trimester..
    • • Engineered new data visualization charts and startup metrics based on direct user requests to enhance investor decision-making.
    • • Reorganized and managed the company's Design System to ensure scalability and visual consistency across web and mobile platforms.
    • • Collaborated with cross-functional squads and C-level executives to align product design strategy with regional business growth goals.
Check out Marina's experience

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Education

  • Master's in User Experience Design
    Barcelona Technology School
    Master's in User Experience Design
  • Professional Diploma in UX Design
    UX Design Institute
    2024
    Professional Diploma in UX Design
Check out Marina's education

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