Kethelen Vieira

Product Designer UX | UI

Fiverr • Freelance

Nov 2025 - Present • 11 mos

UI/UX Designer providing design services to clients worldwide through Fiverr. I specialize in designing SaaS platforms, web applications, mobile apps, dashboards, landing pages, and responsive websites. I collaborate with startups, entrepreneurs, and businesses to transform ideas into intuitive digital products through user-centered design, modern interfaces, and scalable design systems. My work includes UX research, wireframing, high-fidelity UI design, responsive layouts, component libraries, and developer-ready Figma files. Throughout my freelance career, I have successfully completed projects across multiple industries while maintaining strong client satisfaction through clear communication, attention to detail, and reliable project delivery.

UX Analyst

Minsait • Fulltime

Jul 2025 - Present • 1 yr 3 mos

I work on the development of user-centered interfaces for VIVO Telefônica, ensuring visual consistency and usability across large-scale digital solutions. I am responsible for maintaining and evolving documentation through Discovery processes, supporting requirements gathering, understanding business rules, and aligning with stakeholders

Product Designer (UX/UI)

Iceberg Security • Fulltime

Dec 2024 - Jul 2025 • 7 mos

Developed user-centered interfaces for a Cybersecurity SaaS platform, ensuring scalability, visual consistency, and usability. Designed optimized user flows for digital platforms, focusing on continuous and efficient experiences in complex environments. User Interface (UI): Developed low- and high-fidelity prototypes in Figma, including interactions and micro-animations. Applied WCAG accessibility guidelines, ensuring inclusion from the early design stages. Collaborated with users and multidisciplinary teams throughout the design process. UX Research: Conducted A/B testing, moderated usability testing, and card sorting sessions. Information Architecture: Mapped user journeys, created navigation flows and wireframes, ensuring a cohesive and intuitive experience across multiple product touchpoints. Design System: Structured and maintained Design Systems to promote visual consistency, development efficiency, and component scalability across multiple platform applications.