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Toptal is a marketplace for top remote prototyping experts. Top companies and start-ups in San Francisco choose Toptal Prototyping freelancers for their mission-critical initiatives.

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James Tucker

Prototyping Designer, Sketch, Adobe Illustrator, Adobe Photoshop, UX Research, Wireframing, UX Design, UI Design, Web App UX, Mobile App Design, Information Architecture (IA), User Flows, + 0 more

James is an idea machine and master problem-solver when it comes to user interfaces. He is passionate about making users love the product because of the naturally intuitive adoption the user has with the UI. James fuses cognitive science techniques with clever interaction design to make products people love.

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Lance Shields

Prototyping Designer, Sketch, Adobe Photoshop, Adobe Experience Design (XD), Axure RP Pro, InDesign CC, WordPress, Creative Direction, UX Design, UI Design, Branding, Product Design, UX Strategy, + 0 more

Lance is an award-winning design director, product designer, and UX strategist with an MBA. He has 20+ years experience doing hands-on UX/UI design and leading design and strategy at three global agencies, two Fortune 500s, and his own design agency. He has helped shape products and brands for Adobe, Red Bull, Visa, Zipcar, and ADP. His work has won multiple awards including Webby, W3, and Davey Awards. He loves solving complex design problems.

Fitbit - Innovative Digital Retail App

Besure - Reinventing Insurance Through Crowdfunding

That's Not Cool - Webby Award Winner

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Warren Lebovics

Prototyping Designer, Sketch, Figma, Adobe Creative Suite, Adobe Photoshop, iOS, Web, User Interface (UI), User Experience (UX), Visual Design, Mobile App Design, Web App Design, Web App UX, + 0 more

Warren is a product designer with a decade of design leadership and consulting experience. Warren has led design in-person and remote teams and projects at companies large and small, including LinkedIn, Sony, Blackberry, Jumpstart, and more. Warren also has experience co-founding companies and taking companies through funding and acquisitions. He communicates extremely well and can lead and execute with teams of all sizes.

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Igor Ginzburg

Prototyping Designer, Sketch, Flinto Prototyping, Photoshop CC, iOS, App UI, User Experience (UX), Visual Design, Product Design, Wireframing, User Interface (UI), + 0 more

Igor is a full-stack product design consultant with over a decade of experience helping startups create delightful products for mobile, desktop, and web. He relishes challenges that's why he enjoys working on the UI parts of a project so much. One of Igor's biggest strengths as a designer is the ability to seeing the process as a whole without getting caught up in the details.

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Ran Liu

Prototyping Designer, Sketch, Web, UX Design, Product Design, UI Design, Web Design, User Flows, Responsive Web Design (RWD), WordPress Design, + 0 more

Ran brings an artist's eye and an engineer's mind to approach design in a systematic yet creative way. She holds a master of science degree in computer science and human-computer interaction. In the past five years, Ran has specialized in solving complex enterprise problems with elegant and simple UX solutions through an iterative, user-centered, and data-informed design process.

Amplitude Taxonomy – Web SaaS Product

Marketo Email Editor

Release Analysis

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Chris Peterson

Prototyping Designer, Adobe Illustrator, Adobe Photoshop, User Experience (UX), User Interface (UI), UX Design, UI Design, Mobile Design, App UX, App UI, Mockups, Product Design, Visual Design, + 0 more

Chris is a UX and UI designer with over twenty years of experience in consumer and enterprise applications. He worked with Google to restructure and design their help system, created Clarizen’s enterprise mobile apps, and designed a white-label consumer mobile app for Accesso now deployed at parks and resorts across North America. Chris specializes in structure, user flows, wireframing, and design for both mobile and web.

Resort Guest Mobile App

Resort App Management

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Courtney Beyer

Prototyping Designer, Sketch, UX Design, Mobile UX Design, iOS UI Design, Product Design, + 0 more

Courtney is a product designer specializing in user experience and interaction design for apps, web apps, and IoT. She is deeply driven by service projects that upgrade an organization’s processes and help people get their work done more efficiently and eliminate waste. She's worked with small startups to large companies helping them develop and redesign their digital products. Her deep interests are in healthcare, energy, and the environment.

Healthcare Bill Paying App

Datavest: Investment App Redesign

Healthcare Insurance Customer Support System

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Angel J. Perez

Prototyping Designer, UX Design, User Research, Information Architecture (IA), Product Design, Interface Design, Usability Testing, iOS, Android, Adobe Suite, Sketch, Adobe Photoshop, Adobe Illustrator, + 0 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.

Nest Heat Link and Hot Water Control (EU)

NASA Centralized Remote Capture System

Microsoft Context Aware Meeting Agent

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Jessica Testa

Prototyping Designer, Sketch, Responsive, Mobile App Design, Branding, User Interface (UI), Illustration, Adobe CC, Responsive UI, Portal Design, MVP Design, Freelance Design, Marvel App, + 0 more

Jessica is a passionate designer and strategist with a knack for seeing the bigger picture. Using data and user research as the backbone of every design challenge, she has the ability to design fluid user experiences that deliver business results. Innovation and creativity are the driving factors in every design solution she delivers. Her clients include Citrix, CNET, Symantec, PayPal, Booking.com, Netflix, FreshChoice, and Trimble to name a few.

Envolved Charitable Giving Platform

CaptureMyMeeting App Design

BankingBridge Responsive B2B Dashboard and Marketing Website

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Bernat Fortet Unanue

Prototyping Designer, Sketch, Photoshop CC, iOS, Android, UX Design, UI Design, Web Development, Visual Design, + 0 more

Bernat is one of those fabled unicorns who is able to both design beautiful products and then develop them. In the past, he has worked for different startups—one of them, Aviate, was later acquired by Yahoo. He tackles each project with the breadth of his expertise—ranging from Movie VFX to video game design. React is his new obsession and he used it to build Calmeet.co.

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients

Building a cross-platform app to be used worldwide

Building a cross-platform app to be used worldwide

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Creating an app for the game

Creating an app for the game

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Leading a digital transformation

Leading a digital transformation

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Testimonials

Michael is an incredible designer, and has been a great fit for our project. He just gets it in a way that can’t be taught. My goal was to pay Toptal to find me a high quality designer for my project, and that is exactly what happened. It was easy. Being able to see the portfolio work on Toptal’s platform is what gave me the infomation I needed to choose Michael. I have nothing but good things to say about Toptal and am looking forward to using Toptal for other projects in the future.
Edward Daniel, Co-Founder
improvemygun.com

I've worked very closely with Martina for over a year and have to say she is one of the best people I have ever worked with. Instead of simply following instructions blindly, she thinks through the task at hand, becoming a thought partner to help with whatever the project may be. Besides being super talented at design, she possesses specific qualities that make her exceptional to work with given the fast paced nature of being a startup. I would definitely recommend her to anyone looking for a talented, professional designer who doesn't need much direction to hit the ground running.
Sahil Khanna, Sr. Manager, Marketing
LeanTaaS, Inc.

Darko did a great job figuring out the user architecture for our concept, which led him to produce terrific wireframes. His knowledge of usability and design was a perfect match for the outside voice we needed to help jumpstart our project. We would certainly recommend him and work with him again in the future.
Rich Danker, Founder
Prose Market

Carlos has the unique talent of blending both quantitative and qualitative research to keenly identify UX challenges and opportunities. He thinks methodically, emphatically, and holistically to produce data-driven strategies and well-executed designs. Over the past 8 years of working with fully or partially distributed teams, Carlos manages working remotely far better than anyone I've encountered because of his strong communication and presentation skills. He is the first on my list the next time I need a UX designer.
Michelle Krogmeier, Project Manager
Union Station

Rafael is an amazing designer. His aesthetic sense is spot on, and he seems to be able to anticipate our needs before we even know what they are. He's taken the time to understand both our company and our clientele, and his solutions are consistently in-line with our values, interests, and our customers' needs. He delivers on time (if not earlier), works quickly, is well organized, and very effective. He's a pleasure to work with, and we're very happy to have found him through Toptal.
Ethan Brooks, CTO
Langlotz Patent & Trademark Works, Inc.

Toptal gave us access to the best designers out there. They’re not easy to find. Those designers integrated very quickly with our existing teams. They very quickly understood our business case and the value of our solution. Toptal really allowed us to focus on building the best possible product and save a lot of time on the typical administrative pains that goes with it -- specifically, finding the best talent. Toptal designers were very responsive, always online -- and that made life very easy for us. We have ambitious goals on how to grow the application and already Toptal has been a key contributor to that success.
Thierry Jakircevic, General Manager, Digital Solutions, Bridgestone Head Office, Tokyo
Bridgestone Corporation

We had an amazing experience working with our Toptal designer. In only two weeks, we accomplished what would've taken most companies 3 months to complete. We also enjoyed working with the Toptal team to make sure we were paired up with the right designer that would fit both our company culture and working style.
Ted Blosser, Head of Sales and Customer Success
WorkRamp

Dean blew us away. He ranks right up there as one of the top five designers of the hundreds I have worked with in the past. He listened, was totally professional, and came up with a 3D rotating cube design completely on his own. We didn't even ask for it, and yet it has become the centerpiece of our app and how users engage with it right off the bat. What he produced inspired all of us at Votify, and put us on track for launch and investor funding.
Michael Lawrence, Founder & CEO
Votify LLC

Hire Prototyping Experts Seamlessly with Toptal

1

Talk to One of Our Industry Experts

A Toptal director of design will work 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.
The Right Fit
We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.
Scale as Needed
Hire in under 2 weeks and scale your team up or down as needed, 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 Matching
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Featured Toptal Prototyping Publications

Design UX Design

Stay Cool: How to Take Design Feedback Strategically

by Bree Chapin

Design Tools and Tutorials

The Value of User Testing with Prototypes

by Gabriel Kirmaier

Design Tools and Tutorials

Figma vs. Sketch vs. Axure – A Task-Based Review

by Ben Kopf

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Top Prototyping Experts are in High Demand.

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