Sérgio Estrella

Designer in Zürich, Switzerland

Member since January 26, 2017

Sérgio is a UI/UX designer with more than a decade of experience. As an expert in design interfaces and shape experiences, he's worked with small and large teams in different areas, such as education, enterprise, pets, sports, entertainment, and automobile. Sérgio is a technology and games enthusiast interested in the way people interact with the digital world and how it changes over time.

Logo Design Presentation Design User Interface (UI)UI Design UX Design Product Design eCommerce UI Brand Design Web App UX Web App UI Web App Design Mobile Applications UI Prototyping Information Architecture (IA)User Experience (UX)Show more

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Portfolio

Digital Design

Fiat Car Companion App
- Driving
- Cars
- Gamification
- Data Visualization
- iOS
- Mobile UX
Drizzle Team Management App
- Team Management
- Data Visualization
- Web Applications
- Forms
- Dashboards
- Charts
BlendPet | App UX
- Pets
- Apps
- Animal Care
- Veterinary Medicine
Bike Renting App UI/UX
- Transportation & Shipping
- Bike Rentals
- Embedded Systems
- Maps
- Location Services
ServiceReef Landing Page
- Landing Pages
- Lead Generation
- Web Applications
- Charity
- Volunteering
- Sales
- Responsive Design
ABInBev | Invoice Dashboard App
- Food & Beverage
- Management
- Invoices
- Maps
- Data Visualization
- Mobile UX
BlendMobi Approval App
- SAP
- Order Management
- Budget Management
EduX Classes Reporting | UX and Interaction Design
- Education Management Systems
- Time Management
- School
- Data Visualization
- Responsive Design
Geekverse | Visual Identity and UX Design
- eCommerce
- Toys & Children's Products
- Social Media Marketing
- Email Marketing

Employment

UI/UX Designer
2017 - PRESENT
Clients (via Toptal)
- Designed a location-based mobile app for renting bikes on the go, with a gesture-based unlock system that helped avoid accidental interactions and engage users.
- Redesigned the landing page of an aerospace and defense company that wanted to reinvigorate their online presence and optimize the user access of product catalogs and specifications.
- Worked on the design and user experience of a social network mobile app that offered a unique take on sharing food pictures, recipes, nutrition, and restaurant reviews, with a minimalistic design and fast navigation.
- Crafted a web dashboard and scheduling tool for a human resources company that had a lot of information spread, and needed an efficient solution to speed up decision-making over different branches.
- Designed the UI/UX of a mobile health app for pets, including vaccine management, appointment calendar and a contact list for doctors and groomers.
- Worked on an educational web app and dashboard to manage attendance in schools, with a focus on interaction design to turn the process of filling up forms by the teachers into faster and more satisfactory activities.
- Designed the UI of a learning platform and web game that teaches kids how to write code and understand programming logic, for a specialized IT school.
- Crafted the visual identity, web and mobile layout of a gaming news website, also including digital magazines, online communities and social media resources.
Technologies: InVision, Adobe Illustrator, Adobe Experience Design (XD), Sketch
UI/UX Designer
2017 - 2020
Kalon Creative
- Created a design for a web app to manage volunteers at events for non-profit organizations, with scheduling, calendar, courses, and event landing pages that increased engagement.
- Designed a web-based team management platform with tasks, activities, forms, dashboards and data visualization. It included a landing page with conversion rate optimization that brought more users.
- Worked on the user experience of an accountability platform to track user access across the internet over desktop and mobile. The tool included dashboards, analytics, and family group features with an accessible UI.
- Crafted a landing page design for a humanitarian organization against human trafficking across the globe—with a focus on conversion rate optimization for donations and support on social media.
- Designed an eCommerce platform for customizable products based on pictures uploaded by the users, focusing on a streamlined checkout experience to improve conversion.
- Worked on the UI/UX of a design-centric collaborative project management tool that included data gathering, questionaries, inspiration boards and activity feeds. Time and communication gains were crucial for different types of design projects.
- Designed a landing page for healthcare missions. The content structure was optimized to guide users on finding resources, organizations to serve with, and attend to related events.
Technologies: Adobe Experience Design (XD), Abstracts, InVision, Sketch
UX/UI Designer
2017 - 2018
BlendMobi
- 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: Jira, Adobe Photoshop, Adobe Illustrator, Adobe Experience Design (XD)
UX/UI Designer | Front-end Developer
2015 - 2016
Iterative
- Designed and implemented the landing pages, administrative environment, and new features of the mobile app for ConnectCar: an automatic toll payment company.
- Developed and designed the layouts for a web campaign builder platform for Accentiv' Mimética: an agency that integrates relationship and marketing solutions.
- Designed and implemented the landing pages and B2B environment for Vivo Zuum: a digital bank service.
Technologies: Axure, Adobe Dreamweaver, Fireworks, Adobe Illustrator, Adobe Photoshop, Sublime Text, TFS, Visual Studio, Less, Node.js, jQuery, Bootstrap, JavaScript, CSS3, HTML5
UX/UI Designer | Front-end Developer
2013 - 2015
Geekverse
- Established the branding and designed the print materials for Geekverse: an eCommerce focused on games, comics, and action figures.
- Designed and implemented the eCommerce layout and maintained the CMS platform.
- Managed and designed the email marketing campaigns, social media engagement posts, and advertising.
- Created the designs for the company's presentations to partners and product suppliers.
Technologies: Content Management Systems (CMS), Mailchimp, Adobe Dreamweaver, Fireworks, Adobe Illustrator, Adobe Photoshop, jQuery, JavaScript, CSS3, HTML5
Graphic Designer | Web Designer
2012 - 2013
Tambor Digital
- Designed and managed advertising campaigns with banners and email marketing for companies like Carrefour, SEGA and Microsoft.
- Designed and implemented campaigns landing pages for companies like Sony and Sennheiser.
- Created content for gaming news websites and magazines.
Technologies: Flash, Fireworks, Adobe Illustrator, Adobe Photoshop, WordPress, Joomla, Magento, PHP, jQuery, JavaScript, CSS3, HTML5
Graphic Designer | Web Designer
2010 - 2012
Brosz
- Designed the visual identity, website, email marketing, and social media for a gaming eCommerce.
- Worked on the branding, web layout, email campaigns and social media for an eCommerce focused on imported products.
- Coordinated the design team workflow and improved the design consistency across products and advertising campaigns.
- Managed the eCommerce's CMS (PrestaShop).
Technologies: Fireworks, Adobe Illustrator, Adobe Photoshop, PrestaShop, CSS, HTML
Web Designer
2009 - 2010
Federal University of Paraná (UFPR)
- Developed and managed the Federal University of Paraná (UFPR) Design Department website.
Technologies: Website CMS, Adobe Photoshop, CSS, HTML
Graphic Designer
2004 - 2006
Digital House
- Defined the visual identity and designed print materials like business cards for a wide range of clients.
- Created personalized DVD covers and frames for photoshoots.
- Edited studio photos and restored old pictures.
Technologies: Adobe Illustrator, Adobe Photoshop

Other Experience

Design Tool Showdown – Adobe XD vs. Sketch (2019) (Publication)
https://www.toptal.com/designers/ui/adobe-xd-vs-sketch-2019
Since its introduction in 2017, Adobe XD has matured when compared to its rival, Sketch. Looking at Adobe XD vs Sketch, is it time for a change?
Adobe XD vs. Sketch – Which UX Tool Is Right for You? (Publication)
https://www.toptal.com/designers/ux/adobe-xd-vs-sketch-which-tool
After years without a dedicated UX tool and the space owned by Sketch, InVision, and Figma, Adobe started developing XD. Let's look at XD and how it compares with Sketch, the market’s dominant choice.

Education

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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Designer in Zürich, Switzerland

Portfolio

Employment

UI/UX Designer

UI/UX Designer

UX/UI Designer

UX/UI Designer | Front-end Developer