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I am a senior UX/UI and product designer with 7+ years shaping and scaling global digital products across e-commerce, SaaS, and marketplaces. I have a proven track record of improving conversion, retention, and customer satisfaction by designing end-to-end user journeys across web, iOS, and Android. I lead design systems with 100+ components to ensure accessibility and scalability, and I thrive on collaborating with product managers, engineers, and stakeholders to bridge strategy with execution. I mentor designers, facilitate agile workflows, and drive design impact in complex, global organizations.…I am a senior UX/UI and product designer with 7+ years shaping and scaling global digital products across e-commerce, SaaS, and marketplaces. I have a proven track record of improving conversion, retention, and customer satisfaction by designing end-to-end user journeys across web, iOS, and Android. I lead design systems with 100+ components to ensure accessibility and scalability, and I thrive on collaborating with product managers, engineers, and stakeholders to bridge strategy with execution. I mentor designers, facilitate agile workflows, and drive design impact in complex, global organizations.

Helena Wininger-Barros

UX Designer, UI Designer, Product Designer, +4

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I am a senior UX/UI and product designer with 7+ years shaping and scaling global digital products across e-commerce, SaaS, and marketplaces. I have a proven track record of improving conversion, retention, and customer satisfaction by designing end-to-end user journeys across web, iOS, and Android. I lead design systems with 100+ components to ensure accessibility and scalability, and I thrive on collaborating with product managers, engineers, and stakeholders to bridge strategy with execution. I mentor designers, facilitate agile workflows, and drive design impact in complex, global organizations.…I am a senior UX/UI and product designer with 7+ years shaping and scaling global digital products across e-commerce, SaaS, and marketplaces. I have a proven track record of improving conversion, retention, and customer satisfaction by designing end-to-end user journeys across web, iOS, and Android. I lead design systems with 100+ components to ensure accessibility and scalability, and I thrive on collaborating with product managers, engineers, and stakeholders to bridge strategy with execution. I mentor designers, facilitate agile workflows, and drive design impact in complex, global organizations.

Available to hire

I am a senior UX/UI and product designer with 7+ years shaping and scaling global digital products across e-commerce, SaaS, and marketplaces. I have a proven track record of improving conversion, retention, and customer satisfaction by designing end-to-end user journeys across web, iOS, and Android. I lead design systems with 100+ components to ensure accessibility and scalability, and I thrive on collaborating with product managers, engineers, and stakeholders to bridge strategy with execution. I mentor designers, facilitate agile workflows, and drive design impact in complex, global organizations.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Fluent

Work Experience

Senior Product Designer (contract) at Printify

October 31, 2024 - August 26, 2025

Led end-to-end journey mapping for merchant personas, uncovering UX gaps and opportunities in onboarding, dashboard, and sales channels. Applied service blueprinting to identify operational inefficiencies and align design with business workflows. Designed critical desktop to touch points for Mac and Windows, reducing friction in product setup and improving discoverability. Partnered with product, engineering, and business stakeholders to deliver and implement UX improvements that streamlined navigation and boosted onboarding efficiency. Facilitated design critiques to raise design quality, cross-team alignment, and adoption of best practices.

Product Designer at Farfetch

June 30, 2024 - August 26, 2025

Led checkout UX redesigns across Android and iOS platforms, driving a 20% uplift in conversion and improving registration/login rates. Owned and scaled the Android Design System with over 100 components, tripling design iteration speed and ensuring cross-platform consistency. Delivered high-fidelity responsive designs across Mac, Windows, iOS, and Android, balancing brand elevation with usability. Conducted usability testing, benchmarking, and research to convert insights into actionable design improvements. Redesigned homepage and search journeys, increasing feature adoption, engagement, and boosting visitor registration and login rates. Collaborated with PMs, researchers, engineers, and content designers in Agile teams; mentored junior designers and championed accessibility practices across the design system and QA processes. Delivered checkout optimizations achieving a 5.6% uplift in conversion, 3.4% improvement in checkout starts, and reduced UI post-release fixes by 30%.

Freelance Product Designer at Self-Employed / Freelance

January 1, 2021 - Present

Partnered with startups and agencies to improve product usability, brand consistency, and scalability across web and mobile. Led UX audits, redesigns, and design systems initiatives to accelerate time-to-market and deliver measurable impact.

Product Designer at SecondSense

July 31, 2025 - September 6, 2025

First designer on team; established UI kit, redesigned discovery/search/product pages, and built responsive design foundations—resulting in a 3x increase in Daily Active Users within days of launch.

Product Designer at bCreate

January 1, 2021 - Present

Product development and collaboration platform for the wine and beverage industry. Conducted UX audits; redesigned navigation and workflows to improve discoverability; created scalable UI patterns and iconography.

Product Designer at Farfetch

September 1, 2018 - June 30, 2024

Conversion optimization: Led checkout UX redesigns across Android/iOS, driving 20% uplift in conversion and improving registration/login rates. Design system leadership: Owned and scaled Android Design System with 100+ components, tripling design iteration speed and ensuring cross-platform consistency. Cross-platform visual design: Delivered high-fidelity responsive designs across Web (desktop/mobile) and native (iOS/Android). Data-driven insights, usability testing, and research; Search & Discovery improvements; collaboration & mentorship within Agile teams; championed accessibility practices. Business impact included checkout improvements and reduced post-release UI fixes.

Product Designer at Freelance

January 1, 2021 - Present

Partnered with startups & agencies to improve product usability, brand consistency, and scalability, delivering end-to-end UX/UI improvements and scalable design systems.