Publication
Adobe XD vs. Sketch – Which UX Tool Is Right for You?
https://www.toptal.com/designers/ux/adobe-xd-vs-sketch-which-tool
Sérgio is available for hire
Hire SérgioSérgio Estrella
Verified Expert in Design
Designer
Location
São Paulo - State of São Paulo, Brazil
Toptal Member Since
February 1, 2017
Sérgio is a UI/UX designer with over 15 years of experience crafting intuitive interfaces across diverse industries, including AI, enterprise, finance, education, eCommerce, and automotive. His background in graphic design, front-end development, and team leadership ensures a comprehensive approach to user-centered solutions. As a tech enthusiast and digital nomad with experience in 50+ countries, Sérgio brings a unique global perspective to his design approach.
Portfolio
Work Experience
UI/UX Designer
2017 - PRESENT
Clients (via Toptal)
- Developed the rebranded version of an AI assistant that organizes users' emails and personal information, integrates them into their previous inbox, and offers a chatbot and smart features to speed up frequent tasks.
- 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 its online presence and optimize user access to product catalogs and specifications.
- Handled 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 app solution for human resources and taxes, allowing users to manage their employees, clients, payrolls, time tracking, calendars, and more, with a modern and easy-to-use interface.
- Designed the UI/UX of a mobile health app for pets, including vaccine management, an 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 an eCommerce's visual identity and website focused on gaming and entertainment, including marketing resources for social media, advertisement, and email newsletters.
Technologies: InVision, Adobe Illustrator, Adobe Experience Design (XD), Sketch, User Experience (UX), Responsive Web Design (RWD), Interaction Design (IxD), Design Systems, App Design, Layout Design, UX Wireframes, Visual Design, Prototyping, Wireframing, User Experience Design, User Flows, User Stories, User Research, UX Strategy, Data Analytics, Mobile Design, Web Design, Landing Pages, Landing Page Design, Landing Page Optimization, Conversion, Annotated Wireframes, UI Components, SaaS Design, Best Practices in Design, MVP Design, Web UI, Websites, Brand Design, Illustration, Color Schemes, eCommerce UI, eCommerce UX, Web Usability, Mobile eCommerce, Web UX Design, Direct to Consumer (D2C), Component Libraries, UI Design, Mobile UI, Branding, B2B, eCommerce, UX Audits, B2C, Retail, Heuristics, Audits, UI Audits, Checkout, Heuristic Analysis, User Validation, UX Branding, Shopify, Dark UIs, Design, Psychology & Mental Health, UI Prototyping, Mobile Applications, Information Architecture (IA), Pets, Animal Care, Veterinary Medicine, Invoices, Budget Management, Admin Panels, Cross-functional Collaboration, Native Mobile Apps, Chatbots, Blog Design, Web, Brand Guidelines, Artificial Intelligence (AI), Competitive Analysis, Consumer Products, Strategic Planning, Android, Mobile UI Design, Mobile UX Design, Fintech, Business Intelligence (BI), Mobile, Software as a Service (SaaS), Apple, Augmented Reality (AR), Web App UI, Figma, Web UX, Webflow, Microinteractions, Microinteraction Design, Motion Design, Envisioning, Interactive Prototypes, Marketplace Design, Web UI Design, ChatGPT, Visual Storytelling, Voice Interface, User Journey Maps, User Testing, AI Design, OpenAI, Artificial Intelligence as a Service (AIaaS), Generative Artificial Intelligence (GenAI), Enterprise, Icon Design, Icon Sets, Banner Ads, Building & Construction, Color Palettes, Typography, Adobe Suite, Digital Innovation, No-code Development, Logistics, User-centered Design (UCD), Accessibility, Low-fidelity Prototypes, Mobile Prototypes, High-fidelity Prototypes, Mobile App UI, High-fidelity Mockups, Design Thinking, Social Networking, Banking & Finance, Business Technology, Vectors, Entertainment & Leisure, Conversational UX, Mobile First, Product Discovery, Subscriptions, White Label Design, ProtoPie, Conversion Rate, Lottie, Midjourney, Motion Graphics, Transportation & Logistics, Search Engines, Stock Photos, WYSIWYG Web Builders, Website Builders, Automotive, Form Design, Service Design, System Design, Data-heavy Design, Complex Web Systems, SaaS, Billing Software, Customer Relationship Management (CRM), Voice User Interfaces (VUI), Framer, Conversion Rate Optimization (CRO), Animation, Creative Tech, React Native, P2P, Shopping Carts, Social Networks, Framer Prototyping, Email Campaigns, Restaurants & Dining, UI Guidelines, Oxygen, Content Design, Optimization, Email Design, Infographics, Adobe Creative Suite, Salesforce, Photo Editors, Canva, Marketing Collateral Development, Sales & Marketing, Logotype, Device Interaction, Touch Interactions, Widgets, Enterprise Resource Planning (ERP), Product Design, User Interface (UI), Content Marketing Platforms, Data Visualization, Travel Design, Business to Business (B2B), A/B Testing, Investments, Sitemaps, Conceptual Design, Low-fidelity Mockups, UX Principles, Concepting, Industrial Design, Demos, Landing Page Designer, Design Guidelines, Templates, Social Media Covers, Travel & Leisure, Newsletters, Workshops, UI Motion, Blogs, Usability Testing, Enterprise Application Design, Crypto, Web3, Virtual Reality (VR), Virtual Reality App Design, Design Principles
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.
- Handled 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.
- Contributed to 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, User Experience (UX), Visual Design, Prototyping, Wireframing, User Experience Design, User Flows, Web Design, Landing Pages, Landing Page Design, Landing Page Optimization, Conversion, SaaS Design, Best Practices in Design, Web UI, Websites, Brand Design, Color Schemes, Web Usability, Web UX Design, Direct to Consumer (D2C), Component Libraries, UI Design, Mobile UI, Branding, B2B, B2C, Retail, Heuristics, Dark UIs, Design, UI Prototyping, Mobile Applications, Information Architecture (IA), Cross-functional Collaboration, Web, Marketplaces, Business Intelligence (BI), Software as a Service (SaaS), Envisioning, Events, Interactive Prototypes, Web UI Design, Color Palettes, Typography, Adobe Suite, User-centered Design (UCD), Accessibility, Low-fidelity Prototypes, High-fidelity Prototypes, Design Thinking, Business Technology, Vectors, Squarespace, Entertainment & Leisure, Project Management, White Label Design, Form Design, Health & Wellness, Hospitality, Customer Relationship Management (CRM), Shopping Carts, UI Guidelines, Content Design, Optimization, Email Design, Salesforce, Product Design, User Interface (UI), Business to Business (B2B), Conceptual Design, Low-fidelity Mockups, UX Principles, Concepting, Landing Page Designer, Newsletters, Wix
UX/UI Designer
2017 - 2018
Kron Digital
- 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), User Experience (UX), App Design, Artificial Intelligence (AI), Prototyping, Wireframing, User Experience Design, User Flows, Design Workshops, UX Strategy, Data Analytics, Mobile Design, Graphic Design, Social Media, Web UX Design, Component Libraries, UI Design, Mobile UI, Branding, B2B, B2C, Retail, Dark UIs, Design, Presentation Design, UI Prototyping, Mobile Applications, Pets, Animal Care, Veterinary Medicine, SAP, Order Management, Design Leadership, Presentations, Cross-functional Collaboration, Agile, User Interviews, Native Mobile Apps, Web, Brand Guidelines, Competitive Analysis, Consumer Products, Strategic Planning, Android, Mobile UI Design, Mobile UX Design, Business Intelligence (BI), Mobile, Software as a Service (SaaS), Motion Design, Envisioning, Interactive Prototypes, Web UI Design, Pitch Decks, Voice Interface, Enterprise SaaS, Enterprise, Banner Ads, Color Palettes, Typography, Adobe Suite, Logistics, User-centered Design (UCD), Accessibility, Heuristic Evaluation, Low-fidelity Prototypes, Mobile Prototypes, High-fidelity Prototypes, Mobile App UI, High-fidelity Mockups, Fluid UI, Design Thinking, Social Networking, Banking & Finance, Business Technology, Vectors, Entertainment & Leisure, Mobile First, Product Discovery, Subscriptions, Premium Content Subscriptions, Project Management, White Label Design, Form Design, Service Design, System Design, Data-heavy Design, Complex Web Systems, SaaS, Customer Relationship Management (CRM), Voice User Interfaces (VUI), Art Direction, Animation, P2P, Banner Design, Stationery Design, Marketing, UI Guidelines, Content Design, Exercise & Fitness, Fitness, Salesforce, PowerPoint Design, Microsoft PowerPoint, Motion & Animation Design, Web Design, Product Design, User Interface (UI), Travel Design, Business to Business (B2B), A/B Testing, Sitemaps, Conceptual Design, Low-fidelity Mockups, UX Principles, Concepting, Industrial Design, Demos, Design Guidelines, Sales Presentations, Storytelling, Templates, UI Motion, Usability Testing, Enterprise Application Design, Wix
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, User Experience (UX), UI Design, Mobile UI, Branding, B2B, B2C, Retail, React, Design, Front-end Design, Agile, Native Mobile Apps, Web Development, Web UI Design, Color Palettes, Typography, Adobe Suite, Heuristic Evaluation, High-fidelity Prototypes, Fluid UI, Automotive, Form Design, Complex Web Systems, SaaS, UI Guidelines, Content Design, Salesforce, HTML, Tailwind CSS, Web Design, Business to Business (B2B), Conceptual Design, Enterprise Application Design
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, User Experience (UX), Graphic Design, Social Media, Brand Design, Illustration, eCommerce UI, eCommerce UX, eCommerce, B2C, Retail, Design, Front-end Design, Marketplaces, Marketing Design, WooCommerce, WordPress Design, Web Development, Marketplace Design, Web UI Design, Banner Ads, Product Detail Pages, Adobe InDesign, Adobe Suite, Entertainment & Leisure, InDesign CC, 3D Design, Blender, Shopping Carts, Banner Design, Brochures, Email Campaigns, Stationery Design, Advertising, Marketing, Image Retouching, Content Design, Gaming, Adobe Creative Suite, Display Advertising, Social Media Advertising, HTML, Photo Editors, Video Editing, Videos, Ads, Agency, Marketing Strategy, Marketing Collateral Development, Sales & Marketing, Logotype, eCommerce Design, iGaming, Web Design, Google Ads, Consumer Electronics, Design Guidelines, Social Media Covers, Newsletters, Blogs
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, Elementor, eCommerce, Design, Front-end Design, Adobe InDesign, Print Design, Color Theory, Premium Content Subscriptions, InDesign CC, Banner Design, Brochures, Packaging, Advertising, Marketing, Image Retouching, Content Design, Email Design, Infographics, Gaming, Adobe Creative Suite, Display Advertising, Social Media Advertising, HTML, Photo Editors, Ads, Agency, Marketing Strategy, Marketing Collateral Development, Sales & Marketing, iGaming, Web Design, Blogs
Graphic Designer | Web Designer
2010 - 2012
Brosz
- Designed the visual identity, website, email marketing, and social media for a gaming eCommerce.
- Handled 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 platform (PrestaShop).
Technologies: Fireworks, Adobe Illustrator, Adobe Photoshop, PrestaShop, CSS, HTML, Fashion, Design, Front-end Design, Fashion & Beauty, Luxury Goods, WooCommerce, WordPress Design, Marketplace Design, Art Direction, 3D Design, Blender, Banner Design, Advertising, Image Retouching, Content Design, Adobe Creative Suite, Social Media Advertising, Photo Editors, Ads, Agency, Marketing Strategy, Marketing Collateral Development, Sales & Marketing, eCommerce Design, iGaming, Web Design, Social Media Covers
Web Designer
2009 - 2010
Federal University of Paraná (UFPR)
- Developed the Federal University of Paraná (UFPR) Design Department website.
- Managed the Federal University of Paraná (UFPR) Design Department website.
- Updated the Federal University of Paraná (UFPR) Design Department website.
Technologies: Website CMS, Adobe Photoshop, CSS, HTML, Design, Front-end Design, Education, Blog Design, Adobe Creative Suite, Web Design
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 from clients.
Technologies: Adobe Illustrator, Adobe Photoshop, Design, Color Theory, Image Retouching, Adobe Creative Suite, Photo Editors, Video Editing, Videos
Other Experience
Education
2010 - 2012
Post Graduation Certificate in Design and Digital Technology for Products and Services
Fundacao Armando Alvares Penteado | FAAP - São Paulo, Brazil
2006 - 2010
Bachelor's Degree in Graphic Design
Federal University of Paraná | UFPR - Curitiba, Brazil
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