Hire the top 3% of freelance prototyping experts.

Toptal is a marketplace for hiring the world’s best prototyping experts. Top companies and start-ups trust Toptal to hand-select top website prototyping consultants for their mission critical projects.
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Katherine Windley

Santa Barbara, CA, United States
Katherine is the Co-founder and Design Director of Finesse.io, an early-stage start-up. She has over 10 years of experience as a Senior Designer at companies like Uber Digital and Condé Nast, where she redesigned GQ.com and Glamour. Katherine uses a variety of tools to make working prototypes and works well with teams of all sizes as a strong communicator. Her work includes a wide range of projects, from online publishing to eCommerce.Click to continue

Natalia Cackowska

Warsaw, Poland
Natalia is a user experience designer and researcher with nearly seven years of experience creating web and iOS applications. Most of her experience comes from designing large enterprise software and SaaS web applications, where her analytical, design, and user research skills are put to work.Click to continue

Mike Montgomery

Ottawa, Canada
With 15 years of experience in UI/UX design and art/creative direction, Mike has produced a wealth of products from fitness, entertainment, home automation, kid-focused smart products and games to connected devices. His brand experience includes Disney, Google, Nickelodeon, Fisher-Price, Sony Playstation, Hasbro, Activision, and more. Click to continue

María José Corino

Mar del Plata, Buenos Aires Province, Argentina
Maria Corino is a product designer with experience in UX and UI as well as a branding specialist. She has experience across many industries including technology, eCommerce, finance, and social media. She is focused on providing engaging and successful experiences for different audiences and improving brand strategies.Click to continue

Angel J. Perez

San Francisco, CA, United States
Using an educational foundation with a doctorate in technology design, a master's in computational sciences, and bachelor's in physics, Angel has made significant impact at companies such as Nest, Microsoft, AKQA, and Bank of America throughout his professional career. He is a talented UX/UI designer with his finger on the pulse of the latest technology and communicates extremely well.Click to continue

Fabio Muniz

São Paulo - State of São Paulo, Brazil
Fabio is a product designer with more than six years of experience working with venture-backed startups in San Francisco and enterprise clients like Google and NBCUniversal. Currently, Fabio is also mentoring DesignLab's and Springboard's UX courses and writing about usability for various design publications. Click to continue
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