Sérgio Estrella, Designer in São Paulo - State of São Paulo, Brazil
Sérgio Estrella

Designer in São Paulo - State of São Paulo, Brazil

Member since January 26, 2017
With over a decade of experience in UI/UX design, Sérgio has been working with small and large teams in several areas such as education, enterprise, pets, sports, entertainment, automobile industry, and more. Design interfaces and shape experiences are what he drives to do. All in all, Sergio is a technology and games enthusiast who's interested in the way people interact with the digital world and how this changes over time.
Sérgio is now available for hire


Digital Design


  • UI/UX Designer

    2017 - PRESENT
    Clients (via Toptal)
    • Created a design for a web app that managed volunteers at events for non-profit organizations.
    • Designed a web-based platform to enable non-profit organizations to manage team members, courses and content with dashboards and data visualization.
    • Worked on an accountability platform to track user access across the internet over desktop and mobile.
    • Created a landing page design for a web app that helps agencies, universities, and organizations manage members and trips—with a focus on conversion rate optimization for new users.
    • Crafted a landing page design for a humanitarian organization against human trafficking—with a focus on conversion rate optimization for donations and support on social media.
    • Designed an eCommerce for customizable photo frames and products based on pictures uploaded by the users.
    • Designed a location-based mobile app for renting bikes on the go, with a gesture-based unlock system.
    Technologies: Sketch, InVision, Abstract, Adobe XD
  • UX/UI Designer

    2017 - 2018
    • Designed a mobile companion app for FIAT, bringing social elements, gamification and location data to the company's car users.
    • Redesigned an invoice analytics mobile app for AB InBev with location-based data visualizations.
    • Designed the UI and identity of a location-based, mobile-and-web app for a food rescue and delivery service in the city of Sao Paulo, Brazil.
    • Designed a customizable B2B mobile app for internal SAP approvals.
    • Designed the UI and visual identity of an end-user mobile app for pet care and management.
    • Developed a mobile app design for a gas company with chatbot UI and credit/spending management.
    • Designed the UI and branding of a mobile app for sports fans with news, quizzes, score predictions, and gamification elements.
    • Crafted the design for a support ticket management mobile app with a strong focus on information hierarchy.
    • Created the company's presentation designs for clients and teams. Managed and designed email marketing and social media campaigns. Maintained the company's brand presence on the web.
    Technologies: Adobe XD, Illustrator, Photoshop, Jira

Other Experience


  • Specialization in Interaction Design
    2017 - 2018
    University of California, San Diego | Coursera - Online
  • Post graduation certificate in Design and Digital Technology for Products and Services
    2010 - 2012
    Fundacao Armando Alvares Penteado | FAAP - São Paulo, Brazil
  • Bachelor's degree in Graphic Design
    2006 - 2010
    Federal University of Paraná | UFPR - Curitiba, Brazil

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