Sergio Leira
Verified Expert in Design
Designer
San Carlos de Bariloche, Río Negro, Argentina
Toptal member since December 15, 2017
Sergio is a UI/UX product designer with 18+ years of experience building user-centered products and providing end-to-end solutions for startups. He has released 40+ apps worldwide for brands like Disney, Fifa, and Messi. He has led design teams and has created an award-winning app that reached 15 million users, increasing fan engagement, retention, and monetization to overwhelming levels. Sergio is a designer with great versatility and is eager to face new challenges.
Portfolio
Work Experience
UI/UX Designer
SINES, Inc
- Grew and organized a design system for a previously designed product.
- Created new pages and flows for a web app in order for users to subscribe to the app.
- Built a new version of the design source files in Figma.
Mobile UX/UI Designer—Health Tracking Mobile App
Jenevive Health LLC
- Designed a mobile app that lets people track their health, especially for a certain disease.
- Created an interactive prototype for all the improved flows and delivered a new UI for iOS and Android devices.
- Delivered high-fidelity mockups ready for a development handoff.
UX/UI Designer
Sports Buff
- Acted as the lead designer for the real-time fan engagement, gamification, and monetization audience platform. Included a desktop SDK, mobile app, Twitch app, website, and dashboard.
- Created micro-interactions and iOS native solutions for the mobile app.
- Designed an SDK solution for implementation as an OTT product.
Mobile Headset Product Designer
RealWear - Main
- Redesigned and improved the UI/UX flows for a small voice-activated screen Android-based tablet and watch to be worn with an industrial helmet for workers in the field, factory, or warehouse.
- Redesigned the SaaS admin screens for an IoT-type device that includes analytics, charts, tables, and user permissions.
- Led the UX process and workflow. Collaborated closely with a cross-functional team to build and ship designs and produced high-quality creative solutions to complex problems based on research and goals.
Web/Visual Designer
MMCA Inc
- Redesigned UX flows for the company's web app in order to improve access to their games and promote engagement and learning.
- Helped maintain and grow their existing design system.
- Designed the UI and interactive prototypes for their website.
UI/UX Designer for Innovative Startup Capturing Feedback with Video via Mobile
Anatomap Limited
- Designed an innovative mobile app that captures user feedback and includes capturing and editing photos and videos.
- Helped delineate product decisions over software for securely storing legally admissible evidence for crime victims.
- Designed the company website, the mobile app for iOS and Android, and the desktop client and management dashboard.
UX Senior Designer
Globant
- Served as UI/UX designer of native iOS and Android apps in addition to websites for globally recognized brands.
- Created a variety of digital products for different industries based on service over the platform while leading a small UX/VD team.
- Applied a user-centered design process from analysis, requirements refinement, user research, information architecture design, prototyping, usability testing, and visual designing.
Mobile Designer
SPD Tech
- Designed the Ground Dash Mobile app UI, a safety app disguised as a fleet management tool.
- Refined product aspects in order to give the app a more user-centered approach.
- Designed the complete UI in iOS and Android for implementation over Xamarin.
- Reorganized complex data inputs and large forms into friendly user interactions.
- Built a completely interactive prototype for the app with InVision.
- Created deliverables to hand off development and style guides.
UI/UX Lead Designer
Iamat
- Served as UI/UX designer for iOS, Android, and Windows mobile apps.
- Contributed to UI/UX designs for responsive websites.
- Created apps designs which won the company design awards.
- Built interactive prototypes for a variety of apps.
- Designed apps with more than 11 million downloads.
Education
Photographer in Fine Art Prints
DB Photo Studio - Buenos Aires, Argentina
Bachelor's Degree in Graphic Design
Nueva Escuela de Diseño y Comunicacion - Buenos Aires, Argentina
Certifications
Web Designer
Acamica
Fine Art Prints
Escuela de Fotografia DB - Buenos Aires, Argentina
Skills
Tools
Adobe Experience Design (XD), Adobe Illustrator, Adobe Photoshop, InVision, Zeplin, Sketch, Figma, Adobe After Effects, Adobe InDesign
Platforms
Android, iOS, Apple TV, MacOS, Windows Phone
Industry Expertise
Sports, Health
Other
Mobile UI, Mobile UI Design, User Interface (UI), Responsive Design, User Experience (UX), Wireframing, Prototyping, Dashboard Design, Web Applications, Product Design, Web Design, Visual Design, Mobile App Design, Mobile Design, UI Design, Mobile UX Design, Mobile Apps, App Design, Web App Design, Web Application Design, Responsive Web Apps, iOS App Design, Android App Design, UX Design, Gamification, Photography, Branding, Chromecast, UI Motion, Graphic Design, Design Systems, Component Libraries, UI Components, Mockups, Style Guides, Responsive Web Design (RWD), Data Visualization, MVP Design, B2B, Landing Page Design, Mobile UX, TV, TV Broadcasting, Streaming, Video on Demand (VOD), Apple TV UI, Web UI, SaaS, Interactive UI, Soccer, SaaS Design, Information Architecture (IA), Visual Art, Web UX, Digital Product Design, App UX, App UI, Social, Mobile App UI, TV Shows, Interface Design, Software as a Service (SaaS), Big Data, Chart Design, Dashboards, Internet of Things (IoT), Web App UX, Mobile Mockups, Health IT, Conversational UI, Flutter, Video Capture, Questionnaires, Fintech
Experience
Tools
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