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I’m a UX/UI designer with 15+ years of experience leading design systems, user research, and cross-functional product teams across SaaS and enterprise platforms. I specialize in data-driven design and AI-powered workflows, turning insights into elegant experiences that deliver measurable business results and faster product delivery.…

Welinton Fernandes

UX Designer, UI Designer, Web Designer, +2

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I’m a UX/UI designer with 15+ years of experience leading design systems, user research, and cross-functional product teams across SaaS and enterprise platforms. I specialize in data-driven design and AI-powered workflows, turning insights into elegant experiences that deliver measurable business results and faster product delivery.…

Available to hire

I’m a UX/UI designer with 15+ years of experience leading design systems, user research, and cross-functional product teams across SaaS and enterprise platforms.
I specialize in data-driven design and AI-powered workflows, turning insights into elegant experiences that deliver measurable business results and faster product delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Work Experience

Senior UI/UX Designer at Multivision Consulting

January 1, 2025 - Present

Senior UX Designer within Mindera's product teams, designing and refining experiences for complex digital platforms while implementing AI-powered design and development workflows to accelerate delivery. Worked on a B2B mineral trading platform focused on end-to-end purchasing, from product curation to logistics and vessel tracking. Implemented AI-augmented workflows using Figma Maker, Claude Sonnet 4.5, and Cursor to generate production-ready code, automated git operations, and developed custom AI micro-apps to boost team productivity. Established prototype-to-code automation pipeline, reducing handoff time while maintaining design consistency.

UI/UX Engineer at Habitus Health

February 1, 2024 - January 1, 2025

Led design and development of wellbeing-focused SaaS applications with AI integration. Built Bootstrap-based design systems with full documentation for development teams; integrated AI-powered features for posture monitoring and workplace wellbeing; created ergonomic simulations and automated image processing workflows to enhance productivity.

Lead Product Designer at Eir Ireland

July 1, 2021 - February 1, 2024

Drove design and UX strategy for Eir's digital platforms, serving both B2C and B2B markets. Optimised customer journeys, delivered high-fidelity prototypes in Figma and HTML/CSS/SASS, and conducted usability studies to refine experiences. Leveraged Hotjar for insights, facilitated IA workshops, and led B2B projects for EirEvo while maintaining strong branding and design standards.

UI/UX Designer at Matrix Internet

February 1, 2019 - July 1, 2021

Delivered innovative UI/UX solutions across industries including e-commerce, tourism, automotive, and property rentals. Performed UX audits, built scalable design systems in Figma/Sketch/CSS/SASS, and led industry-specific UX improvements, including COVID-19 optimization for Europcar and Costa. Also contributed to digital marketing and multimedia assets to boost engagement.

Front-end & UI/UX Designer at Point Blank Ltd

January 1, 2016 - February 1, 2019

End-to-end UI/UX design for the Time & Attendance product and bespoke WordPress/WooCommerce themes. Led research, wireframes, interactive prototypes, and high-fidelity designs; collaborated with developers to implement HTML/CSS/SASS; created detailed style guides to streamline workflows and improved user engagement.

UX Designer & Front-end at Docsmart.AI

June 1, 2015 - January 1, 2016

Dashboard interface design for the legal sector, integrating Docsmart.AI's proprietary AI for dynamic document management. Built using PHP/HTML/CSS/JavaScript with a focus on user-centered design, usability improvements, and accessibility considerations.

UX Front-end Developer at Kionux

June 1, 2013 - May 1, 2015

Led UI/UX for international clients across multiple markets. Designed an internet backline system and ATM interfaces, conducted user research and testing, and integrated banking APIs and currency exchange features to ensure secure, usable interfaces.

Front-End Developer at Virtualiza São Paulo

April 1, 2012 - December 1, 2012

Led UI design and front-end development for e-commerce projects. Created WordPress/Joomla themes, conducted usability testing, and produced interactive prototypes to accelerate development and improve conversions.

Web Designer at Diretriz Feiras e Eventos

April 1, 2011 - December 1, 2011

Redesigned websites for major events with refreshed branding and cohesive UI. Conducted usability testing and performance analysis, and improved internal communications to streamline updates for 100+ clients.

Web Designer at UniBrasil University Centre

August 1, 2010 - April 1, 2011

Led visual and functional development of the university's primary website, designed icons for a cohesive visual identity, and performed usability testing to enhance user satisfaction and engagement.