Hire the Best Prototyping Experts Near Philadelphia.

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

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Jason Gonzalez

Prototyping Designer, Adobe Photoshop, UI Design, Visual Design, UX Design, iOS, Android, Sketch, Web, Interface Design, Product Design, Information Architecture (IA), Adobe Suite, + 0 more

Over the past few years, Jason's helped to improve the experience design of notable companies such as Mitel, Boom Fantasy, Deloitte, and more. He's a UI/UX designer freelancer in the Toptal network who's worked with clients on various projects for the web, iOS, and Android. Jason's had the opportunity to design for many industries such as VoIP, healthcare, sport, fintech, and entertainment.

Visual IVR | Web App

Season Share Web App

Advance Report | Web App

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Matthew Mandravelis

Prototyping Designer, Sketch, iOS, Android, Web Design, Adobe Photoshop, UI Design, UX Design, iOS UI Design, AI Design, Adobe Experience Design (XD), + 0 more

Matthew is an award-winning product UX/UI designer, advisor, and creative director with more than ten years of hands-on experience in making complex interfaces approachable. He has made a significant impact on international startups and established corporations, for bringing impact via innovation. His mission is to deliver the most efficient, engaging, innovative and high-quality experience with an emphasis on user experience.

Cryptocurrency iOS App and Web

Travel and Culinary Responsive Website

WHAT IF Product

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Arthur Badalian

Prototyping Designer, Sketch, Adobe Photoshop, Adobe Creative Suite, WordPress, User Experience (UX), User Interface (UI), UX Research, Web Design, Web UX Design, Web UX, Personas, UX Strategy, + 0 more

Arthur is an advertising strategist with a deep passion for design-led solutions. His master’s in advertising coupled with UX/UI design allows him to intuitively blend user-centric design with proof-of-concept strategies to create immersive experiences. He excels in rapidly growing, innovative organizations and enjoys solving problems rooted in research and storytelling. His aim is to help people spend less time clicking and more time doing.

Mindstrong Health | UX/UI and Development

Fresh N' Funky | UX/UI + Development

Instashop | UX/UI

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Christopher F. Thomas

Prototyping Designer, Sketch 3, Adobe Photoshop, Presentation Design, Pitch Decks, + 0 more

Chris is a UX designer with several years of experience. He prides himself in being able to translate ambiguous ideations into simple, concise, and intuitive designs. Chris is comfortable and experienced with explaining his design process to startup founders and company shareholders alike.

Snip | Stylist Booking App

JetSkip | AI Travel Assistant

ParkingPro | Airbnb for Driveways

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Kasey Randall

Prototyping Designer, Icon Design, UI Design, Rapid Interactive Prototyping, Mobile Design, Usability Testing, UX Strategy, Sitemaps, Sketch, Adobe Experience Design (XD), Android UI Design, Data Visualization, Wireframing, + 0 more

Through the transformative power of design and technology, Kasey crafts and elevates digital products with a smart, human-centered process. He creates thoughtful digital experiences by way of design thinking methodology, experimentation, and high fidelity interface design. Being experienced in best design and usability practices clients have relied on Kasey to deliver impactful, end-to-end design solutions across mobile, web, and software.

WANDERGIER • Mobile App for Travelers

Innovation and Research Software

Align • Productivity Mobile App

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Jeff Witters

Prototyping Designer, Sketch, Photoshop CC, Web, Web Design, Visual Design, Identity Design, App UI, Brand Design, Art Direction, Branding, Mobile Design, User Experience (UX), + 0 more

Jeff is an award-winning multi-disciplinary designer. With 14+ years of experience, his passion lies in working with startups to create user-friendly desktop and mobile applications. Jeff will work with you and your team to identify, design, and develop the assets your company needs to get off the ground.

Namebase.io Pro Crypto Exchange

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Tássia Spinelli

Prototyping Designer, UX Research, Usability Testing, Lean UX, PowerPoint Design, + 0 more

Tássia strives to understand user needs and how they connect to services and business. She takes pride in applying research, discovering pain points, and building delightful experiences. As an experience designer, her approach is truly focused on Lean UX principles, design thinking, and continuous design paradigms. She values collaborative teamwork and strong partnerships with clients in order to build great experiences for users.

Elections Portal at G1

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Angela Liu

Prototyping Designer, Sketch, UX Design, User Research, PowerPoint Design, + 0 more

Angela is a product designer located in New York City. She has a master's degree in human-computer interaction from Carnegie Mellon University. She thoroughly enjoys talking to and spending time with her users to understand their lives, jobs, and struggles in order to design the best experience for their needs. Her main hobbies are doing portrait and real estate photography!

Client Monetization

Automated Checkout

Shopper Engagement

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Himanshu Bharadwaj

Prototyping Designer, Adobe Photoshop, Adobe Illustrator, Adobe InDesign, OmniGraffle, Sketch, Web UX, UX Process, App UX, App UI, Websites, Website Redesigns, Logo Design, + 0 more

Himanshu is a digital art-director who's experienced in crafting UX/UI designs both onsite and remote. In his career, he's worked for many New York advertising agencies for brands as diverse as Nikon, Samsung, Verizon, Lincoln, American Express, Travelers, Delta, GE, Heineken, IBM, Kraft, Deutsche Bank, Revlon, Sirius, and more. He has worked with small startups doing innovative work and directly with clients through a consultancy practice.

Deutsche Bank | Financial Application

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Artur Maklyarevsky

Prototyping Designer, Sketch, User Experience (UX), User Interface (UI), Product Design, Creative Direction, Project Management, PowerPoint Design, Data Visualization, + 0 more

Artur has built a few startups over the last ten years and he's also helped others create their own designs via his studio, Design2Dev. He also has an extensive background in iterative UI/UX, IxD, and solving problems creatively. Since 2000, he's also worked with a plethora of Silicon Valley agencies as a lead designer and art director. Artur also has a master's degree in interactive telecommunications from ITP-NYU Tisch School of the Arts.

FIFA and eSports App

Fisher Solver App

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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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