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.
We've been blown away by the level of talent we've been able to hire through Toptal.
Tássia Spinelli
Prototyping Expert
Tássia strives to understand user needs and how they connect to services and business. She takes pride in applying research, discovering pain points, and bu...ilding 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.Â
Angela Liu
Prototyping Expert
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 thorough...ly 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!Â
Jason Gonzalez
Prototyping Expert
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.Â
Matthew Mandravelis
Prototyping Expert
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 interfa...ces 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.Â
Himanshu Bharadwaj
Prototyping Expert
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 advertis...ing 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.Â
Artur Maklyarevsky
Prototyping Expert
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 exten...sive 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.Â
Brock Monahan
Prototyping Expert
Brock is a UX/UI designer with several years of experience creating user-focused websites and interactive applications. He provides a unique approach that c...ombines expertise in brand development, market strategy, and digital design. He's worked in teams of all shapes and sizes and is an excellent communicator. Â
Ian Spangler
Prototyping Expert
Ian has served national brands and startups as a designer and creative technologist for over a decade since earning his MFA degree in HCI/Interaction Design... from NYC’s Parsons School of Design. Starting when he co-founded the first major social network and user-generated platform for movie ideas, Ian has developed a refined skill set in designing dynamic, content-driven web applications for media, entertainment, and related industries.Â
Homayoun Kandeloussi
Prototyping Expert
Homayoun is a UX Architect and he has broad experience in creating end-to-end UX solutions incorporating data-driven content. His main expertise is making c...omplex tasks simple and delightful to the users. Homayoun specializes in Problem Discovery and Definition, Research and Analysis, Information Architecture, UX Design, Database Modeling, Web Design, and Rapid Prototyping.Â
Louisa Armbrust
Prototyping Expert
Louisa is an experienced UX designer and researcher in product and service design for health, education, business intelligence, and other industries. She is... skilled in UX design, user research, concept and strategy, information architecture, usability testing, and visual design. Louisa cares about why people do things, how they can do those things better, and what we can all do to care for each other, have more fun, and get more out of life.Â
Sign up now to see more profiles.
Get Started
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.
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.
Hire in under 2 weeks and scale your team up or down as needed, no strings attached.
We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.
Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.
Giving and receiving feedback—without losing one's cool—is an art. It's incumbent on designers to encourage others to give them quality design critiques on their work that cultivates constructive discussion.
User testing, often confused with usability testing, is an overarching term which helps validate the need for a product. When used with prototypes and the right testing tools, it can help save a product from failure.
There are many UX design tools on the market, but their capabilities vary. This review examines the effectiveness of Sketch, Axure, and Figma with a task-based comparison.
Top Prototyping Experts are in high demand.
Get Started
