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Marta UstrellMU

Marta Ustrell

Supermalter

UX Designer and Researcher

€325/day
1 project
Barcelona, ES
8-15 years

Average response time: 1 hour

About Marta

I help companies create user-centered digital products with over 8 years of experience in UX Research and product design. I specialize in uncovering actionable insights through qualitative and quantitative research, user interviews, and usability testing, turning real user problems into intuitive solutions that drive business impact. I have worked on projects in e-commerce, real estate, digital banking, and automotive, delivering user journeys, personas, UX recommendations, and strategies that improve both user experience and key business metrics.
  • Catalan

    Native or bilingual

  • English

    Fluent

  • Spanish

    Native or bilingual

  • French

    Basic

Can work on-site
Barcelona (up to 50km)

Experience

  • adevinta
    Product Designer & Researcher at Fotocasa
    REAL ESTATE
    March 2023 - December 2025 (2 years and 9 months)
    Barcelona, Spain
    As part of the Fotocasa design team, I focus on strategic research and design to enhance the real estate search experience. Key responsibilities & contributions:

    • Led an in-depth comparative benchmark between Fotocasa and Idealista, analyzing the full search flow and all touchpoints to identify feature gaps and opportunities.
    • Delivered insights and recommendations directly to management, influencing product strategy and roadmap decisions.
    • Conducted user research and usability testing to validate improvements in search, contact, favorites, lists and ads.
    • Collaborated with cross-functional teams (data, product, engineering) to align initiatives with user needs and business priorities.
    • Supported the design system to ensure scalability and consistency across platforms.
    UX Design UX Research Design System Benchmarking and Competitive Analysis Figma
  • adevinta
    Product Designer & Researcher at Milanuncios
    E-COMMERCE
    November 2018 - February 2023 (4 years and 3 months)
    Barcelona, Spain
    As part of the Milanuncios design team, I led research and design initiatives to improve core product experiences in one of Spain’s largest classifieds platforms. Key responsibilities & contributions:

    • Improved the New Ads flow, login experience, alerts, ad detail page, and the Real Estate category, optimizing usability and increasing engagement.
    • Conducted user research (interviews, surveys, usability testing, benchmarks) to uncover insights and guide product decisions.
    • Designed and optimized user journeys, flows, and interfaces to boost conversion and user satisfaction.
    • Led A/B testing and feature validation to ensure data-driven improvements.
    • Collaborated closely with product managers, developers, and data teams to prioritize initiatives and align design with business goals.
    • Contributed to the design system to maintain consistency and scalability.
    UX Design UX Research Design System NPS CSAT
  • SEAT
    Product Designer
    AUTOMOBILE
    April 2017 - November 2018 (1 year and 7 months)
    Martorell, Spain
    I worked on the design of the infotainment system for the SEAT León and CUPRA, creating intuitive and user-friendly interfaces for connected vehicles.

    Key responsibilities & contributions:

    • Defined interaction architecture and detailed wireframes for in-car systems.
    • Conducted user testing to validate usability and improve the driving experience.
    • Designed interfaces for SEAT León, CUPRA, and upcoming connected models, integrating technical and functional requirements into the UI.
    • Collaborated with engineers and product teams to ensure feasibility and seamless integration.
    User Interface Design HMI Automotive UX Design Diseño UI

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Education

  • Grado en Diseño Gráfico
    ESDi
    2011

Skill set

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