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.

We’ve been blown away by the level of talent we've been able to hire through Toptal.

Brad Rozran, Optimizely
Meet our
Prototyping Experts
Kat Windley
Digital Product Designer
Previously at
Natalia Cackowska
Digital Product Designer
Previously at
Fabio Muniz
Design Lead
Previously at
Haiyuan Jiang
Digital Product Designer
Previously at
Tamara Olson
Senior Designer
Previously at
Diego Aguilar
Design Lead
Previously at
Bill Tribble
Design Lead
Previously at
Jake Frey
Design Lead
Previously at
Ruaridh Currie
Digital Product Designer
Previously at
Belinda De Bruyn
Senior Designer
Previously at
Angel J. Perez
Senior Designer
Previously at
Jeff Shaw
Digital Product Designer
Previously at
Trusted by leading brands and startups

Our Exclusive Network of Prototyping Experts

Kat Windley

Prototyping Expert
Kat has over 14 years of experience as a product designer. She's worked at a wide range of companies from Condé Nast, where she redesigned GQ.com, Glamou... Read More
Kat has over 14 years of experience as a product designer. She's worked at a wide range of companies from Condé Nast, where she redesigned GQ.com, Glamour, and Vogue, to co-founding her own start-up. Kat 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 admin tools to online publishing and eCommerce. Read Less
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Fabio Muniz

Prototyping Expert
Fabio is an experienced product designer who's worked with venture-backed startups and enterprise clients like Google and Viacom. He had been searching f... Read More
Fabio is an experienced product designer who's worked with venture-backed startups and enterprise clients like Google and Viacom. He had been searching for more projects that piqued his interest so he made the decision to try freelancing platforms. At the time, there were many to choose from, however, Fabio chose Toptal because he not only wanted more work but also solid clients and teammates to work with. Read Less
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Mike Montgomery

Prototyping Expert
Michael is a senior product designer with 15+ years of experience. He specializes in planning, conceptualizing, and designing clean, functional interface... Read More
Michael is a senior product designer with 15+ years of experience. He specializes in planning, conceptualizing, and designing clean, functional interfaces and experiences. He's also passionate about building and shipping digital products. Michael enjoys working with innovative brands and helping early-stage startups plan, design, build, and ship their MVP. Read Less
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Natalia Cackowska

Prototyping Expert
Natalia is a user experience designer and researcher with nearly seven years of experience creating web and iOS applications. Most of her experience come... Read More
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. Read Less
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María José Corino

Prototyping Expert
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 tec... Read More
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. Her past clients include Microsoft, McKinsey & Company, Verizon, BNP Paribas Cardif, and many more. Read Less
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Abe Serrano

Prototyping Expert
Abe has spent the past 12 years designing digital solutions for clients such as TED, XPRIZE, Samsung, and ExxonMobil. As a versatile UX/UI designer, Abe ... Read More
Abe has spent the past 12 years designing digital solutions for clients such as TED, XPRIZE, Samsung, and ExxonMobil. As a versatile UX/UI designer, Abe has a keen sense of understanding business objectives and defining a clear pathway to achieve desired outcomes. Clients hire him for his lean UX methodology, human-centric approach to design, creative leadership in teams of all sizes, and his ability to get things done.  Read Less
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Angel J. Perez

Prototyping Expert
Using an educational foundation with a doctorate in technology design, a master's in computational sciences, and bachelor's in physics, Angel has made si... Read More
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. Read Less
View Angel's Profile
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Hire Prototyping Experts Seamlessly with Toptal

1
Talk to One of Our Industry Experts
A Toptal Director of Design will work with you to understand your goals, technical needs, and team dynamics.
2
Work with Hand‑Selected Talent
Within days, we'll introduce you to the right prototyping expert for your project. Average time to match is under 24 hours.
3
The Right Fit, Guaranteed
Work with your new prototyping expert for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Tap Into World‑Class Talent

Trusted Experts Only
All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.
Your New Team Member
We are so sure you will love your new team member, than you can try working with them for a few days. Pay only if satisfied.
Scale as Needed
Hire talent within 48 hours. Scale your team up or down exactly when you need it, no strings attached.
Seamless Hiring
We handle all aspects of billing, payments and NDA's. Let us take care of the overhead while you focus on building great products.
Flexible Engagements
Choose the engagement type that suits your needs – hourly, part-time, or full-time – with the ability to change anytime.
Expert Talent Matcher
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.